The ATLAS Liquid Argon Calorimeter readout electronics will be upgraded for the HL-LHC. This includes the development of custom preamplifiers and shapers with low noise and excellent linearity, a new ADC chip with two gains and new calibration boards with excellent non-linearity and non-uniformity between all calorimeter channels. New ATCA compliant signal processing boards equipped with FPGAs...
The China Jinping Underground Laboratory (CJPL) is an excellent location for studying solar, geo- and supernova neutrinos. As an early stage of the Jinping Neutrino Experiment (JNE), we have been studying the performance of a 1-ton liquid prototype neutrino detector at CJPL-I. We aim to improve its electronics system and photomultiplier tubes (PMTs) to explore its potential capabilities...
The Mu2e experiment will search for the CLFV process of neutrinoless coherent conversion of muon to electron in the field of an Al nucleus. The experimental signature is a monochromatic conversion electron with energy $E_{CE} = 104.97$ MeV/c. One of the possible background processes is $\bar{p}$s produced by the proton beam at the Production Target, annihilating in the ST. The background...
Understanding the formation of (anti)nuclei in high-energy collisions has attracted large interest over the last few years. According to the coalescence model, nucleons form independently and then bind together if they are close in phase-space. A recent advancement of the model is the Wigner function formalism, which allows the calculation of the coalescence probability based on the distance...
The exploration of the Higgs boson's properties and its interactions with top quarks constitutes a pivotal aspect of the post-Higgs discovery era. Among these, the measurement of the associated production of a Higgs boson with a pair of top quarks (ttH) offers a unique window into the Yukawa coupling between the Higgs and the top quark, the heaviest known fundamental particle. This poster...
Inspections and interventions in radioactive environments are often reliant on human personnel because of the complexity of the infrastructures that have not been designed for robotic or remote access. This is the case also for particle and nuclear physics experimental facilities which can become highly activated over time.
To alleviate problems with the decommissioning of the ATLAS inner...
The Fermilab accelerator complex has been optimized to deliver a 1-Mega Watt proton beam for the NOvA experiment. The primary challenges involve maintaining the target system and stabilizing the proton beam operation to serve high-quality neutrino beams to the neutrino detectors. The beam transport lattice was re-optimized for sending the fine-tuned proton beam to the target. The proton beam...
The upcoming wave of neutrinoless double beta decay (0νββ) experiments is geared towards probing the inverted mass ordering and transitioning into the normal ordering domains. We undertake a quantitative assessment of the projected experimental sensitivities, with a specific emphasis on the discovery potentials anticipated prior to the execution of experiments. We assess the sensitivity of the...
Visualization is integral to high-energy physics (HEP) experiments, spanning from detector design to data analysis. Presently, depicting detectors within HEP is an intricate challenge. Professional visualization platforms like Unity offer advanced capabilities, and also provide promising avenues for detector visualization. This work aims to develop an automated interface facilitating the...
The ATLAS experiment will undergo major upgrades for the high luminosity LHC. The high pile-up interaction environment (up to 200 interactions per 40MHz bunch crossing) requires a new radiation-hard, fast readout tracking detector.
The Inner Tracker (ITk) upgrade design includes ~28,000 modules. It is vital to follow the complex global production flow. The ITk production database (PDB)...
An ATLAS search for axion like particles (ALPs) that decay into diphoton is presented. ALPs are hypothetical light particles that may be a component of a hidden (dark) dark sector. ALPs arising from Higgs decays are studied, where the Higgs is produced in association with a Z boson that is reconstructed leptonically. For prompt ALP decays, a dedicated search looking for two leptons and two...
High Energy Physics as a field is necessarily situated within the
broader societal context that surrounds it. As a result, societal biases
also shape physics research. Be it through retention of physicists who
are LGBTQ+, recruitment of young LGBTQ+ physicists, or fighting
discrimination in the lives and careers of our LGBTQ+ friends, family,
and colleagues, much can be done to fight the...
The S-matrix for a QFT in 4D Minkowski space is an inherently holographic object, i.e. defined at the (conformal) boundary of spacetime. A section of this boundary is the celestial 2-sphere and Lorentz group acts on it by conformal transformations. I will briefly review scattering, when translated from the basis of plane waves (translation eigenstates) to the conformal basis (dilatation...
We investigate the elastic production of top quark pairs ($t\bar{t}$) in $pp$ collisions at low and high luminosities. We extend the study of the sum of two semi-exclusive $t\bar{t}$ production modes, namely in photon--Pomeron ($\gamma-\!IP$) and Pomeron--Pomeron ($\!IP-\!IP$) interactions. We consider semi-leptonic $t\bar{t}$ decay, tagging of both forward protons, and low pile-up. We find...
HYLITE is a charge-integration pixel detector readout chip designed for Shanghai high repetition rate XFEL and extreme light facility. With a dynamic range t of 1~10000 photons at 12 keV, the pixel of HYLITE includes an ADC with an automatic gain-switching function. The initial phase of HYLITE development focuses on creating a 64×64-pixel chip with a 200-μm pixel pitch. The ultimate goal is to...
The INO-ICAL collaboration has built a prototype detector called mini-ICAL at IICHEP, Madurai, India$\:$(9$^\circ$ 56' N, 78$^\circ$ 00' E). The mini-ICAL is being used to measure charge-dependent cosmic muon flux at the earth’s surface. Mini-ICAL is a magnetised detector, composed of 11 layers of iron plates interspaced with resistive plate chambers to track cosmic ray muons. The iron is...
Quantum chromodynamics (QCD) has yielded a vast literature spanning distinct phenomena. We construct a corpus of papers and build a generative model. This model holds promise for accelerating the capability of scientists to consolidate our knowledge of QCD by the ability to generate and validate scientific works in the landscape of works related to QCD and similar problems in HEP. Furthermore,...
Particle identification (PID) is crucial for future particle physics experiments like CEPC and FCC-ee. A promising breakthrough in PID involves cluster counting, which quantifies primary ionizations along a particle’s trajectory in a drift chamber (DC), bypassing the need for dE/dx measurements. However, a major challenge lies in developing an efficient reconstruction algorithm to recover...
We improve the YFS IR resummation theory so that it includes all of the attendant collinear contributions which exponentiate. The attendant new resummed contributions are shown to agree with known results from the collinear factorization approach. We argue that they improve the corresponding precision tag for a given level of exactness in the respective YFS hard radiation residuals as the...
Non-identical femtoscopy is sensitive to the two-particle pair source size ($R$) and the pair-emission asymmetry ($\mu$). Here, we studied the dependence of $R$ and $\mu$ on the centrality and pair transverse velocity ($\beta_{\rm T}$). For this purpose, we modelled the femtoscopic correlations between all charged pion-kaon pairs in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=$ 5.02 TeV using a)...
Majoron-like particle J in the mass range between 1 MeV to 10 GeV, which dominantly decays into the standard model (SM) neutrinos, can be constrained from the big-bang nucleosynthesis (BBN). For majoron lifetime ($\tau_J$) smaller than 1sec, the injected neutrinos from the majoron decay heat up the background plasma and it results in the deficit of Helium-4 abundance and enhancement of...
Sub-GeV dark matter particles evade standard direct detection limits since their typical energies in the galactic halo don’t allow for detectable recoil of the heavy nuclei in the detectors. It was, however, pointed out recently that if the dark matter particles have sizable couplings to nucleons, they can be boosted by interactions with galactic cosmic rays and also sub-GeV dark matter can be...
The initial density of both the Dark Matter(DM) and the Standard Model (SM) particles may be produced via perturbative decay of inflaton with different decay rates, creating an initial temperature ratio, $\xi_i$=T$_{DM,i}$/T$_{SM,i}$. This scenario implies inflaton mediated scatterings between the DM and the SM, that can modify the temperature ratio even for high inflaton mass. The effect of...
The contribution provides an overview of the Data Quality Control System (QC) of the ALICE Inner Tracking System (ITS2).
QC is a software developed during the ITS commissioning before the beginning of the LHC Run 3. It is used to validate
the detector performance and guarantee efficient data taking.
QC is capable of synchronous data flow monitoring at different levels: data integrity, data...
The Jiangmen Underground Neutrino Observatory (JUNO) is located in southern China, in an underground laboratory with a 650 m rock overburden. The primary scientific goal of JUNO is to determine the neutrino mass hierarchy.
Data Quality Monitoring (DQM) system is crucial to ensure the correct and smooth operation of the experimental apparatus during data taking of an experiment. The DQM...
This poster will present the Drell-Yan differential cross-section measurement in the wide dilepton mass range of 40-3000 GeV. The measurement was done using 2016-2018 CMS experiment data. A special emphasis will be placed on the background estimation procedures in dielectron and dimuon measurements.
The precision measurements of the Drell-Yan process are important inputs to parton...
The influence of exploiting Deep Neural Networks (DNNs) for signal-over-background classification in High Energy Physics (HEP) analysis is often underrated. In this research, we investigated the effect of a DNN classifier on the Vector Boson Fusion (VBF) production mode of the Higgs boson that decays into b-quark pairs. The DNN improves the identification of the signal events overwhelmed by...
Large neutrino liquid argon time projection chamber (LArTPC) experiments can broaden their physics reach by incorporating isolated MeV-scale features present in their data. We use data from MicroBooNE, an 85 tonne LArTPC exposed to Fermilab neutrino beams from 2015 until 2021, to demonstrate new calorimetric and particle discrimination capabilities for isolated ~O(1 MeV) energy depositions...
Hardware random number generators (HRNG) are widely used in the computer world for security purposes as well as in the science world as a source of the high-quality randomness for the models and simulations. Currently existing HRNG are either costly or very slow and of questionable quality. This work proposes a simple design of the HRNG based on the low-number photon absorption by a detector...
In offline software of JUNO experiment, detector identifier (ID) and geometry management are indispensable parts. Detector identifier provides a unique ID number for every detector unit with readout, which is used by different applications in offline software. An ID mapping service is under development to provide associations between different sets of ID systems, including offline software,...
Outreach & Education is an essential part of HEP experiments where visualisation is one of the key factors. 3D visualisation and advanced VR, AR, and MR extensions make it possible to visualise detectors’ facilities, explain their purpose, and functionalities, and visualise different physical events. The visualisation applications should be extensive, easily accessible, compatible with most...
The Upstream Tracker (UT) is a crucial component in the LHCb tracking system installed in the Upgrade I. The UT is a silicon microstrip detector that speeds up track reconstruction, reduces the rate of ghost tracks, and improves reconstruction of long-lived particles. LHCb is planning Upgrade II during Long-Shutdown 4 aiming at increasing the peak luminosity by a factor of 7.5. The event...
Generation of the relativistic electron beams using Laser Wakafield Acceleration technology (LWFA) has recently achieved Technology Readiness Level (RTL) sufficient to deliver MeV level electron beams for user experiment. Recently built LWFA accelerators can be operated at 1 kHz pulse repetition rate. The LWFA technology enables the production of electron beams with the ultra-shot time...
The water Cherenkov detector stands as a cornerstone in numerous physics programs such as precise neutrino measurements. In a conventional physics analysis pipeline, the understanding of detector responses often relies on empirically derived assumptions, leading to separate calibrations targeting various effects. The time-consuming nature of this approach can limit the timely analysis...
We present a comprehensive differential study of $\Lambda$ hyperon polarization in (ultra-)central Au+Au collisions at low and intermediate energies, employing the microscopic transport model UrQMD in conjunction with the statistical hadron-resonance gas model. This study entails a complex analysis of the fireball dynamics and thermal vorticity field evolution. The resulting thermal vorticity...
The upcoming long-baseline (LBL) neutrino experiments will be sensitive to non-standard interactions (NSI) and can provide information on the unknown oscillation parameter values. The observed shift in $\delta_{CP}$ value observed for NOvA in case of standard model (SM) and NSIs arising simultaneously from two different off-diagonal sectors, i.e., $e-\mu$ and $e-\tau$ could be attributed to...
A cosmic muon veto detector (CMVD), using extruded plastic scintillator (EPS) strips, is being built around the mini-ICAL detector which is operational at IICHEP, Madurai. CMVD will study the feasibility of building a shallow depth neutrino detector. Muon interactions in the EPS are detected by SiPMs mounted at both ends of two wavelength shifting fibres that are inserted in the EPS strips....
DUNE is a long-baseline neutrino experiment that will precisely measure neutrino oscillation parameters, observe astrophysical neutrinos, and search for processes beyond the standard model. DUNE will build four LAr-TPCs far detectors with a total mass of ~70 kT LAr located at SURF (Sanford Underground Research Facility), 1.5 km below the earth’s surface. A near-site complex, hosting different...
We are interested in thermal corrections to dark matter (DM) annihilation cross sections in a MSSM-inspired BSM theory, having bino-like Majorana DM ($\chi$), annihilating to SM fermions through Yukawa interactions via a charged scalar channel in freeze-out scenario. We apply real-time formalism of thermal field theory (TFT) to investigate corrections due to thermal fluctuations of DM...
To reconstruct the energy and time of events in the liquid scintillator detector, in a neutrino or dark matter experiment, we need to analyze the waveforms from photomultiplier tubes (PMTs). Fast Stochastic Matching Pursuit (FSMP) is a reversible jump Markov chain Monte-Carlo, which samples the posterior of PE time sequence for each waveform. Besides waveforms from dynode PMTs, FSMP is...
Within the ATLAS Experiment the Prompt Lepton Isolation Tagger (PLIT) served as an essential tool to distinguish between prompt muons originating from the decays of W and Z bosons and non-prompt muons generated in the semi-leptonic decays of b- and c-hadrons. Its central role was to effectively mitigate the presence of fake and non-prompt leptons in various multi-lepton final state analyses...
In the realm of high-energy physics experiments, the ability of software to visualize data plays a pivotal role. It supports the design of detectors, aids in data processing, and enhances the potential to refine physics analysis. The integration of complex detector geometry and structures, using formats such as GDML or ROOT, into systems like Unity for 3D modeling is a key aspect of this...
In high-energy collisions, by measuring the two-particle Bose–Einstein correlation function and considering its relationship with the phase-space density of the particle-emitting source, we can obtain information about the source function. While a Gaussian shape is commonly assumed, anomalous diffusion suggests Lévy-stable distributions, as observed in the PHENIX experiment for kaon-kaon...
Jefferson lab is considering an energy increase from current 12 GeV to 22 GeV for its CEBAF accelerator. This will be accomplished by recirculating 5-6 additional turns through two parallel CEBAF LINACs using an FFA arc at each end of the racetrack. The total recirculation turns would be 10 times, the first four turns use present conventional arcs to make the 180-degree bends from one LINAC to...
We disclose a serious deficiency of the Baym-Kadanoff construction of thermodynamically consistent
conserving approximations. There are two vertices in this scheme: dynamical and conserving. The divergence of each indicates a phase instability. We show that each leads to incomplete and qualitatively different behavior at different critical points. The diagrammatically controlled...
The pixelated semiconductor tracking detectors became standard tool in experiments of high energy physics. An increasing demand for high resolution data requires highly granular detectors. Small pixels size and low noise electronics allows more data to be recorded for each event (cluster of pixels). Every pixel of modern detectors (e.g. Timepix3/4) can record deposited energy and time of...
At the LHC, Electrons and Photons play a crucial role for precision measurements of the Higgs Bosons properties as well as of Standard Model parameters such as the weak mixing angle, the W boson mass and related cross-sections which have proven to be competitive to prior determinations at the LEP or Tevatron colliders. In addition, they are crucial for searches using electron and photon final...
Future detector studies rely on advanced software tools for performance estimation and design optimization. Particle flow reconstruction is a key ingredient in optimal jet energy resolutions. While Pandora
stands out as a well-established algorithm for particle flow analysis, its application has primarily been confined to high-granularity CALICE calorimeters.
This limitation prompted...
At the LHC, the vast amount of data from the experiments demands both sophisticated algorithms and substantial computational power for efficient processing. Hardware acceleration is an essential advancement for HEP data processing, focusing specifically on the application of High-Level Synthesis (HLS) to bridge the gap between complex software algorithms and their hardware implementation. We...
We present SKMHS22, a new set of diffractive PDFs and their uncertainties at NLO and NNLO accuracy in pQCD within the xFitter
framework. We describe all diffractive DIS datasets from HERA and the most recent H1/ZEUS combined measurements Three scenarios are considered: standard twist-2, twist-4 (including longitudinal virtual photons), and Reggeon exchange. For the contribution of heavy...
A new hadronic calorimeter (HCAL) with scintillating glass tiles has been designed for future lepton collider experiments (e.g. the Circular Electron Positron Collider). Using a sampling structure (similar to the CALICE AHCAL technology), the new HCAL design aims for better handron and jet performance, with a higher sampling fraction by using glass instead of plastic scintillator.
Full...
The KOTO experiment at J-PARC is dedicated to searching for the rare decay $K_L \rightarrow \pi^0 \nu \bar{\nu}$. This decay violates CP symmetry and is sensitive to new physics beyond the Standard Model(SM) because its branching ratio is predicted to be $3 \times 10^{-11}$ with a small theoretical uncertainty in SM. One of main backgrounds is caused by a small contamination of charged kaons...
The ALICE Collaboration has proposed a next-generation heavy-ion experiment to be installed at the LHC Interaction Point 2 during the LHC Long Shutdown 4, in preparation for Run 5 (2035) and 6. ALICE 3 will be equipped with a Time-Of-Flight (TOF) detector for the identification of charged particles and which should reach a time resolution of about 20 ps, with novel silicon sensors. In this...
In view of the High-Luminosity LHC era the ATLAS experiment is carrying out an upgrade campaign which foresees the installation of a new all-silicon Inner Tracker (ITk) and the modernization of the reconstruction software. Track reconstruction will be pushed to its limits by the increased number of proton-proton collisions per bunch-crossing and the granularity of the ITk detector. In order to...
The experimental & theoretical research on physics of massive neutrinos is based on standard paradigm of three-neutrino mixing, which describes the oscillations of neutrino flavors measured in solar, atmospheric a& long-baseline experiments. However, several anomalies , corresponding to an L/E of 1m/MeV could be interpreted by involving sterile neutrino as RAA & Galium anomaly.
STEREO was...
Successful reconstruction of hadronic events is critical for the physics measurements at high energy frontier, where the precise measurement of Higgs boson properties is essential, as it provides excellent opportunities to discover New Physics.
We propose a new methodology called jet origin identification, which could identify the jet seemed from 11 different colored SM particles (udsbc,...
The HL-LHC phase will be a challenge for the CMS-RPC system since the expected operating conditions are much higher with respect to those for which the detectors have been designed, and could introduce non-recoverable aging effects which can alter the detector properties. A longevity test is therefore needed to estimate the impact of HL-LHC conditions on RPC detector performance. This will...
We update the lepton universality tests and the Vus determination using measurements of tau decays. The tau lepton branching fraction global fit has been improved taking into account uncertainties on external nuisance parameters in its constraints. It will be included in the Heavy Flavour Averaging Group (HFLAV) as-of-2023 report and in the updated Tau Branching Fractions review in the PDG...
In view of the HL-LHC, the Phase-2 CMS upgrade will replace the entire trigger and data acquisition system. The detector readout electronics will be upgraded to allow a maximum L1A rate of 750 kHz, and a latency of 12.5 µs. The upgraded system will be entirely running on commercial FPGA processors and should greatly extend the capabilities of the current system, being able to maintain trigger...
The performance of the Level-1 Trigger (L1T) is pivotal for the data-taking endeavor of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC). The custom hardware-based L1T system reduces the event rate from the collision frequency of 40 MHz to around 115 kHz as input to the High Level Trigger (HLT). The effective operation and monitoring of the L1T are critical for...
The results from the short-baseline experiments, such as the LSND and MiniBooNE, hint at the potential existence of an additional neutrino state characterized by a mass-squared difference of approximately 1 eV². In addition, a sterile neutrino with a mass-squared difference of $10^{-2}$ eV² has been proposed to improve the tension between the results obtained from the T2K and NOνA experiments....
Hyper-K is a next-generation long baseline neutrino experiment. One of its primary physics goals is to measure neutrino oscillation parameters precisely, including CP-asymmetry. As conventional νµ beam from J-PARC neutrino baseline contains only 1.5% of νe interaction of total, it is challenging to measure νe/νe(anti) scattering cross-section on nuclei. To reduce systematic uncertainty, IWCD...
Heterogeneous computing solutions for real-time event reconstruction are an emerging trend for future designs of trigger and data-acquisition systems, especially in view of the upcoming high-luminosity program of the LHC. FPGA devices offer significant improvements on latency when highly-parallelised algorithms, also based on machine-learning solutions, are coded and deployed on such devices....
Future e$^+$e$^-$ colliders provide a unique opportunity for long-lived particle (LLP) searches. This study focusses on LLP searches using the International Large Detector (ILD), a detector concept for a future Higgs factory. The signature considered is a displaced vertex inside the ILD's Time Projection Chamber. We study challenging scenarios involving small mass splittings between heavy LLP...
The European Strategy for Particle Physics identifies an e+e- Higgs factory as its top priority and the first step towards an ultra-high energy future hadron collider. The Future Circular Collider (FCC) is being proposed at CERN to address these goals. The FCC includes an electron-positron collider (FCC-ee), which will be followed by an energy-frontier hadron collider (FCC-hh).
New long...
This poster will illustrate the key aspects covered in the upcoming LHC EFT WG Note: SMEFT predictions, event reweighting, and simulation.
Emphasising the challenges associated with the generation of SMEFT predictions using the event reweighting technique, we illustrate the subtleties behind operators that introduce helicity configuration not allowed in the SM. Furthermore, we introduce a...
The CEPC booster has been designed to provide electron and positron beams at different energies for the collider. The latest booster design aligns with the TDR's higher luminosity objectives for four energy modes. The booster's optics have transitioned from FODO in the CDR to TME structure, resulting in a significant reduction in emittance to match the lower emittance of the collider in the...
Hyper-Kamiokande (HK) is a next-generation international neutrino experiment currently under construction in Japan. HK will explore proton decay and have the capability to detect Earth-crossing, atmospheric, solar, cosmic, and accelerator neutrinos. Expected to start data collection in 2027, HK will require periodic calibration for optimal performance.
The calibration at lower energies will...
The measurement of low-mass e+e− pairs is a powerful tool to study the properties of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions. Since such pairs do not interact strongly and are emitted during all stages of the collisions, they allow us to investigate the full space-time evolution and dynamics of the medium created. Thermal radiation emitted by the colliding...
The transformer models are dominating the generative modeling, namely in the natural language processing domain. The attention mechanism in those models does not suffer from implicit bias and it enables the processing of large amounts of data thanks to the parallelization of computations during the training. This study presents experiments with the transformer blocks in an image completion...
We present results using an optimized jet clustering with variable R, where the jet distance parameter R depends on the mass and transverse momentum of the jet. The jet size decreases with increasing $p_{T}$, and increases with increasing mass. This choice is motivated by the kinematics of hadronic decays of highly Lorentz boosted top quarks, W, Z, and H bosons. The jet clustering features an...
China JinPing Underground Laboratory (CJPL) is an underground laboratory with 2800 meters rock overburden and is ideal to carry out experiment for rare-event searches. Cosmic muons and muon-induced neutrons present an irreducible background to neutrino experiment and dark matter experiment at CJPL. A precise measurement of the cosmic-ray background of CJPL would play an important role in the...
ProtoDUNE Single-Phase was DUNE's first full-scale engineering prototype and operated from 2018-2020. It took test beam data of charged hadrons in 2018, including data of positively charged kaons at high GeV-scale momenta. A total inelastic cross section was measured using these test beam kaons with the thin-slice method, which artificially divides the detector into slices where the particle...
We use the toolbox of modern amplitude methods to examine a theory that has been mostly neglected Quantum electrodynamics. In this work we have focused on maximum helicity violating (MHV) amplitudes in massless electrodynamics. Formulas for arbitrary number of external photons for some processes are presented . There we recursively show that the defining property of these amplitudes is just...
Muon reconstruction performance plays a crucial role in the precision and sensitivity of the LHC data analysis of the ATLAS experiment. Di-muon J/Psi and Z resonances are used to calibrate to per-mil accuracy the detector response for muons. This poster aims to provide an overview and the current status of the Muon Momentum Calibration within the ATLAS detector, thus the study of the procedure...
We present an interpretable implementation of the autoencoding algorithm, used as an anomaly detector, built with a forest of deep decision trees on FPGA, field programmable gate arrays. Scenarios at the Large Hadron Collider are considered for which the autoencoder is trained using the Standard Model. The design is then deployed for anomaly detection of unknown processes. The inference is...
The Covid-19 pandemic has exposed certain societal weaknesses, including the lack of scientists in the media and the readiness of the public to believe in fake news. "Neutralina" is a character conceived on Instagram (@neutralina.lu) in response to the observed need for scientific outreach done by women in Peruvian and Latin American society. The objectives of this project include normalizing...
The precise knowledge of neutrino flux and related uncertainties at the near and far detectors of the T2K experiment is crucial for extracting various neutrino oscillation parameters and neutrino cross-section measurements. The current Monte Carlo beam simulation framework, JNUBEAM, relies on the GEANT3 toolkits, which are no longer maintained. Additionally, it utilizes the FLUKA software to...
The poster will show the aspect of neutron skin and links of this topic with different areas of physics. After a theoretical introduction and examples of where neutron skin research can be used, I would like to show calculations made in recent months. Pb+Pb, proton+Pb, antiproton+Pb collisions at a high momentum were studied, and simulations were done with the UrQMD program. Among the...
We describe the fit of top-quark mass values at NNLO using as input the double-differential distributions on rapidity and invariant mass of t-tbar pairs obtained by the ATLAS and CMS collaborations from unfolding of their experimental data to the parton level, compared to NNLO theory predictions.
We consider different state-of-the-art PDF sets, finding results of the fits compatible among...
Antiproton annihilation at-rest can provide a unique probe into the intra-nuclear structure of nuclei. This process was first observed in the 1950’s using photographic emulsion and has since been observed and studied on a variety of nuclei. We present here the first observation and reconstruction of antiproton annihilation at-rest interactions on argon nuclei using data from the LArIAT...
We present the observation of entanglement in top quark pairs using data collected with the CMS detector in the 2016 Run II of the LHC. Event signatures are selected only when two high pT leptons are present consistent with the dileptonic decay channel. An entanglement proxy D is used to determine whether the top quark pairs are entangled in the production threshold with D < -⅓ signaling...
The Jiangmen Underground Neutrino Observatory (JUNO) consists of the Central Detector (CD), Water Cherenkov Detector (WCD), and Top Tracker (TT) each utilizing thousands of Photomultiplier Tubes (PMTs) for signal detection. These signals are processed by front-end readout electronics and converted into digital ADC waveforms. Real-time waveform processing using FPGAs is used for charge...
ATLAS Open Data for Education delivers proton-proton collision data from the ATLAS experiment at CERN to the public along with open-access resources for education and outreach. To date ATLAS has released a substantial amount of data from 8 TeV and 13 TeV collisions in an easily-accessible format and supported by dedicated documentation, software, and tutorials to ensure that everyone can...
We present a novel readout circuit tailored primarily for PbWO4 scintillation detectors in high-energy experiments. The design integrates a 4x4 SiPM array directly coupled to a preamplification stage, housed within a compact electronics module. The readout circuit is design to work with independent number of the SiPMs without affecting the timing output. This module incorporates bias control...
The CMS Level-1 Trigger Data Scouting (L1DS) defines a new approach within the CMS Level-1 Trigger (L1T), enabling the acquisition and processing of L1T primitives at the 40 MHz bunch-crossing (BX) rate. The L1DS will reach its full potential with the CMS Phase-2 Upgrade at the HL-LHC, harnessing the improved Phase-2 L1T design, featuring tracker and high-granularity calorimeter data for the...
The RPC detectors in the CMS experiment operate with a gas mixture made of 95.2% C2H2F4, known to be a greenhouse gas. Several eco-friendly alternatives to C2H2F4, such as HFO, have been studied in the last few years in order to find an alternative mixture with low Global-Warming Potential (GWP), while maintaining the performance of the RPC chambers. Another way to improve the RPC standard gas...
The Deep Underground Neutrino Experiment (DUNE) far detectors require readout of several hundred thousand charge-sensing channels immersed in the largest liquid argon time projection chambers ever built, calling for cryogenic front-end electronics in order to be able to adequately instrument the full detectors. The ProtoDUNE-II program at the CERN neutrino platform consists of 2 liquid argon...
The high luminosity operation of the LHC will deliver collisions with a luminosity about 10 times the original design value. This poses a big challenge for trigger and data acquisition in real-time due to nearly 200 overlapping collisions, called pile up, within a bunch crossing. The CMS experiment will revamp its trigger structure as part of the required upgrade, to have tracker and more...
ProtoDUNE-SP is a single-phase liquid argon time projection chamber, which was in operation at CERN from 2018 to 2020. It is a prototype detector for the DUNE far detector, which is designed to contain about 70 kiloton liquid argon for neutrino detections. In addition to the R&D studies, it also implements charged particle beam to study their behaviors in the liquid argon. These particles,...
The Higgs boson discovery at the Large Hadron Collider (LHC) completed the Standard Model of Particle Physics, and it confirmed the Higgs mechanism as a suitable description of the Electroweak-Symmetry-Breaking (EWSB). Nevertheless, the dynamics of the EWSB is still one of the most consequential questions in particle physics and a fascinating topic due to its connection to other open questions...
Developed within the European Project STRONG2020, PrecisionSM is an annotated database that compiles the available data on low-energy hadronic cross sections in electron-positron collisions. It is important to collect and organize these experimental measurements since they are used to perform precise tests of the Standard Model, such as in the anomalous magnetic moment of the muon. In...
The anomalous magnetic moments of leptons represent excellent probes of the Standard Model and therefore also of possible new physics effects.
In particular, the persisting hint of new physics in the muon $g$-2 motivates the investigation of similar effects also in the other leptonic dipoles.
In this work, we examine the new physics sensitivity of the tau $g$-2 at future high-energy lepton...
During the upcoming High Luminosity phase of the Large Hadron Collider (HL-LHC), the integrated luminosity of the accelerator will increase to 3000 fb-1. The expected experimental conditions in that period, in terms of background rates, event pileup and the probable aging of the current detectors, present a challenge for all existing experiments at the LHC, including the Compact Muon Solenoid...
The Baur, Spira, and Zerwas model of composite quarks and leptons predicts the excited neutrinos to be produced in proton-proton collisions via contact interactions. Subsequently, the excited neutrinos decay via gauge interaction or contact interaction. The final states always include missing transverse energy; there can also be zero to three charged leptons and/or jets. The present study...
The quest for proton decay is a pivotal endeavor in particle physics, offering potential validation of Grand Unification Theories. In this pursuit, DUNE employs LArTPC technology and ML to boost detection sensitivity and minimize background events. This poster presents a new multimodal ML framework to distinguish proton decay into charged kaons and muons from DUNE's atmospheric neutrino...
Neutrino flavor oscillation, a crucial phenomenon in particle physics, explores the interplay between flavor and mass eigenstates, revealing insights beyond the standard model. Probabilistic measures traditionally study these transitions, while the quantum features of neutrinos, such as entanglement, open avenues for quantum information tasks. Quantum complexity, an evolving field, finds...
The aim of the SABRE (Sodium-iodide with Active Background REjection) experiment based in Australia is to detect an annual rate modulation from dark matter interactions in ultra-high purity NaI(Tl) crystals in order to provide a model independent test of the signal observed by DAMA/LIBRA.
Radionuclides from intrinsic and cosmogenic processes including $^{40}$K, $^{210}$Pb, $^{232}$Th and...
This work utilizes text analysis techniques to uncover connections and trends in quantum chromodynamics (QCD) research over time. Through embedding-based analysis, we are able to draw conceptual connections between disparate works across QCD subfields. Examining topic clustering and trajectories over time provides insights into new phenomena gaining momentum and experimental approaches coming...
The aim of the LHCb Upgrade II is to operate at a luminosity of up to 1.5 x 10$^{34}$ cm$^{-2}$ s$^{-1}$. The required substantial modifications of the current LHCb ECAL due to high radiation doses in the central region and increased particle densities are referred to as PicoCal. An enhancement already during LS3 will reduce the occupancy and mitigate substantial ageing effects in the central...
A search for scalar resonances decaying to four leptons is presented, with the data collected by the CMS detector from 2016 to 2018 at center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb-1. A model-independent approach is introduced and applied. Large mass region is covered from 130 GeV to 3 TeV, and different production mechanisms and width assumptions are tested.
A search for low mass narrow vector resonances decaying into quark-antiquark pairs at high transverse momentum is presented. The analysis is based on data collected in Run 2 with the CMS detector at the LHC in proton-proton collisions at $\sqrt{13}~\mathrm{TeV}$. Signal candidates are reconstructed as large-radius jets and identified using the ParticleNet algorithm. This analysis presents the...
The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure the effective electron antineutrino mass with a sensitivity better than $m_\nu c^2=0.3\,\mathrm{eV}$ ($90\%\,\mathrm{C.L.}$) using precision electron spectroscopy of tritium beta decay. This determination occurs in the spectral endpoint ($E_0$) region, up to some $10\,\mathrm{eV}$ below $E_0\approx...
While experimental data has not ruled out the possibility of additional Higgs bosons or gauge sectors, several alternative models have been proposed to go beyond the standard model and tackle the question of hierarchy. These models predict the existence of heavy vector-like partner quarks that exhibit vector-axial (V-A) coupling, typically on the TeV scale. In this work, We focus on the...
This poster is dedicated to searches for additional Higgs bosons from an extended Higgs sector in fermionic final states. These scalar states are predicted by several Beyond Standard Model theories, like Two Higgs doublet Models (2HDM) and the Minimal Supersymmetric extension of the Standard Model (MSSM). The results are interpreted in various benchmark scenarios.
Many extensions of the Standard Model with Dark Matter candidates predict new long-lived particles (LLP). The LHC provides an unprecedented possibility to search for such LLP produced at the electroweak scale and above. The ANUBIS concept foresees instrumenting the ceiling and service shafts above the ATLAS experiment with tracking stations in order to search for LLPs with decay lengths of...
In this study we investigate the feasibility of detecting heavy neutral leptons ($N_d$) through exotic Higgs decays at the proposed International Linear Collider (ILC), specifically in the channel of $e^+ e^-\to qq~H$ with $H\to\nu N_d\to\nu~lW\to\nu l~qq$. Analyses based on full detector simulations of the ILD are performed at the center-of-mass energy of 250 GeV for two different beam...
The Karlsruhe Tritium Neutrino (KATRIN) experiment probes the absolute neutrino mass scale by precision spectroscopy of the tritium $\beta$-decay spectrum. By 2025, a final sensitivity better than 0.3$\,$eV/c$^2$ (90% C.L.) is anticipated with a total of 1000 days of measurement.
Going beyond this goal, for instance towards the regime of inverted mass ordering, requires novel technological...
We present a detailed analysis of the transverse momentum distribution of charged particles from three different schemes. The first two arise from considering the color string picture described by the Schwinger mechanism convoluted with Gaussian and q-Gaussian string tension fluctuations, obtaining the $p_T$-exponential and the Tricomi’ function, respectively. Both are compared with the...
The ALLEGRO detector concept is a proposal for the detector to be operating at the Future Circular Collider FCC-ee. The calorimetry system consists of a high granular noble liquid electromagnetic calorimeter and a hadronic calorimeter with scintillating tiles using wavelength shifting fibers. The individual components of the calorimetry system in the barrel and extended barrel regions will be...
In several models of beyond Standard Model physics discrete symmetries play an important role. For instance, in order to avoid flavor changing neutral currents, a discrete Z2 symmetry is imposed on Two-Higgs-Doublet-Models (2HDM). This can lead to the formation of domain walls as the Z2 symmetry gets spontaneously broken during electroweak symmetry breaking in the early universe.
Due to...
ALICE is the LHC experiment designed for the study of nucleus-nucleus collisions. Its primary goal is to characterize the quark--gluon plasma (QGP), a deconfined state of matter created at extreme temperatures and energy densities. Heavy quarks (charm and beauty) are excellent QGP probes, as they are mostly produced at the earliest collision stages and survive the entire medium evolution, thus...
The coupling of the Higgs boson to fermions is a crucial part of the standard model with still much room to explore. Since we’ve measured the interaction with the heavy third generation, our focus naturally shifts to the lighter generations. As the Higgs boson coupling scales with mass, this endeavor is much more difficult. The next natural candidate, the charm quark, in particular poses a...
The Deep Underground Neutrino Experiment (DUNE) is a long-baseline neutrino-oscillation experiment aiming to measure CP-violation and the neutrino mass ordering. The far detector consists of four 17-kt modules based on Liquid Argon Time Projection Chamber (LArTPC) technology. The technologies chosen for the first and second DUNE modules are tested with large scale prototypes at the CERN...
The purification of the Juno Liquid Scintillator is a crucial and complex key point for the Jiangmen Underground Neutrino Observatory (JUNO). The huge LS mass (20 kton), the high transparency (> 20 m @ 420 nm), high radio-purity (< 10^-15 g/g, even 10^-17 g/g in U/Th) and extraordinary energy resolution (3% @ 1 MeV) are fundamental to achieve JUNO’s goals. Physics purposes include neutrino...
Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) is an interaction well predicted by the Standard Model. Its large cross-section allows to study neutrinos with relatively small detectors. Precision measurement of the CEvNS cross-section is a way to study neutrino properties and search for new physics beyond the Standard Model. The NUCLEUS experiment aims to detect and characterize CEvNS...
The Higgs boson was discovered in 2012 and most of its properties agree with the standard model (SM). However, several rare Higgs boson decay channels haven't been observed, including the $H→Zγ$ channel with the branching ratio of $(1.5±0.1)×10^{−3}$. The rare Higgs decays provide probes for physics beyond the SM (BSM). Therefore, the search for $H→Zγ$ decay is performed, where $Z→l^+l^-$ with...
In the Color String Percolation Model, the QGP formation is associated with the emergence of the percolation cluster of color strings. Then, the estimation in the thermodynamic limit of phenomenological observables is suitable for heavy ion collisions, where a large number of particles are produced. In order to extrapolate these estimations to small systems, such as pp collision, finite size...
Using the most recent experimental data and lattice calculations of scattering lengths of pipi scattering and employing dispersive representation of the amplitude based on Roy equations, we compute the subthreshold parameters of this process. We use Monte Carlo sampling to numerically model the probability distribution of the results based on all uncertainties in the inputs. In the second part...
Timing measurements are critical for the detectors at the future HL-LHC. The ATLAS Collaboration builds a new High Granularity Timing detector (HGTD) for the forward region. A customized ASIC - ALTIROC - has been developed, to read out fast signals from low gain avalanche detectors (LGAD), which has <=50 ps time resolution for signals from minimum ionising particles. A custom-designed...
We present latest developments in Analysis Description Language (ADL), a declarative domain-specific language describing the physics algorithm of a HEP data analysis decoupled from software frameworks. Analyses written in ADL can be integrated into any framework for various tasks. ADL is a multipurpose construct with uses ranging from analysis design to preservation, reinterpretation, queries,...
In my poster, I will present four sub-topics related to radiation protection for the CPEC:
1. Conceptual design for the collider dump system: This includes the parameters of two dilution kickers and the sizes of a graphite core and iron shell. The maximum temperature rises in the collider dump for four operations are calculated and they are below the graphite melting point.
2. Radiation...
The T2K experiment is a long-baseline neutrino oscillation experiment in Japan. A muon (anti-)neutrino beam produced at J-PARC is detected at the near detector ND280 and the far detector Super-Kamiokande (SK). The ND280 detects neutrino interaction candidates before oscillation to predict the neutrino flux in SK and constrain neutrino-nucleus interaction models.
To reduce systematic...
The Penetrating particle Analyzer (PAN) is an instrument designed to operate in space to measure and monitor the flux, composition, and direction of highly penetrating particles in energy range from 100 MeV/n to 20 GeV/n. The demonstrator, called Mini.PAN, employs 2 sectors of permanent magnets arranged in Halbach geometry. These are interleaved with silicon strip detectors with 25 µm pitch in...
The Hyper-Kamiokande experiment will study long-baseline neutrino oscillations with the primary focus of a search for the leptonic CP violation, following the successful T2K experiment. Thanks to an 1.3MW beam produced at J-PARC and an 184 kilotonne fiducial mass of the far detector, the event rates will be 20 times higher than those of T2K, and the search will be systematically limited mainly...
The LHCb experiment will undergo its high luminosity detector upgrade in 2033-2034 to operate at a maximal instantaneous luminosity of 1.5 × 1034cm-2s-1. This increase in instantaneous luminosity poses a challenge to the tracking system to achieve proper track reconstruction with a tenfold higher occupancy. Here we focus on foreseen solutions for the new tracking stations after the magnet,...
The Large Hadron electron Collider (LHeC) project is studying a new LHC interaction region for deep inelastic scattering collisions between electrons and hadrons in the TeV energy scale. An intense 50 GeV lepton beam is brought into collision with one 7 TeV hadron beam from CERN’s Large Hadron Collider in parallel to the hadron-hadron operation.
This paper presents the status of the study...
KM3NeT is a research infrastructure with neutrino telescopes at two sites in the Mediterranean Sea for the detection of high-energy cosmic neutrinos. The two underwater telescopes, ARCA and ORCA, are Cherenkov detectors, using similar technology but with different geometrical layouts. In this way, it is possible to cover a large range of neutrino energy and address various science topics...
ALICE 3 is a new detector proposed to operate during the LHC Run 5 and 6. The Muon IDentifier (MID) detector is one of the ALICE 3 subsystems optimized to detect muons down to momenta below 1.5 GeV/c for rapidities |y|<1.3 for the reconstruction of J/ψ vector mesons down to zero transverse momentum at midrapidity. The ALICE 3 tracker large-acceptance will offer access to rare charmonium and...
The Deep Underground Neutrino Experiment (DUNE) comprises a suite of Near Detectors and Far Detectors based on the Liquid Argon TPC technology, enhanced by a powerful Photon Detection System (PDS) that records the scintillation light emitted in Argon. Besides providing the timing information for an event, photon detectors can be used for calorimetric energy estimation.
The two observables...
The KOTO experiment at J-PARC searches for the rare decay, $K_L \rightarrow \pi^0\nu\overline{\nu}$. This search requires a high intensity $K_L$ beam which sets KOTO in a unique position to probe sub-GeV quark coupling to dark matter. One avenue to study this is the mode $K_L \rightarrow \pi^0\pi^0X$, where $X\rightarrow\gamma\gamma$. This mode was studied in the E391a experiment at KEK in the...
Unitarity and $CPT$ symmetry constrain the $CP$ asymmetries entering the Boltzmann equation for net particle number generation. These constraints often manifest as cancelations of the leading-order asymmetries in decays and scatterings. In this poster, we consider the asymmetries of seesaw type-I leptogenesis with top-Yukawa corrections. Even when starting with Maxwell-Boltzmann phase-space...
This presentation concerns the application of non-extensive statistics, more specifically that proposed by C. Tsallis, in the study of transverse momentum distributions of mesons composed of charm quarks produced in collisions between heavy ions at relativistic energies. Non-extensive statistics has been successful in the description of transverse momentum spectra of particles produced in...
DUNE will be a long baseline neutrino experiment with a broad physics program, including neutrino oscillation, proton decay, and supernova studies. The detector, located 1,500 m (4,850 ft) underground at SURF, South Dakota, will be 1,300 km (810 mi) away from the ultimate 2.4 MW proton beam source at Fermilab. Four far detector modules, of 17 kt total mass of liquid argon each, will produce...
Trilinear Higgs Couplings are crucial quantities for determining precisely the electroweak breaking mechanism. In the talk both Type 2 and Type 4 THDMS are analyzed and compared with respect to embedding the different current excesses at the LHC. In the talk also vacuum stability is discussed in the THDMS compared with the NTHDM. Precision requirements for measuring the trilinear couplings...
Pileup, or the presence of multiple independent proton-proton collisions within the same bunch-crossing, has been critical to the success of the LHC, allowing for the production of enormous proton-proton collision datasets. However, the typical LHC physics analysis only considers a single proton-proton collision in each bunch crossing; the remaining pileup collisions are viewed as an...
Mixed Layer (ML) in Oceans is defined as the less dense upper region of the water column where turbulent mixing occurs. Mixed Layer Depth (MLD) is the depth of this region and shows diurnal, seasonal fluctuations, and spatial variations. MLD is an indicator for climate change. When atmospheric muons enter the sea, a decreased muon count at the bottom of water is observed. Muon count is...
The precision measurement of daily proton fluxes with AMS during twelve years of operation in the rigidity interval from 1 to 100 GV is presented. The proton fluxes exhibit variations on multiple time scales. From 2014 to 2018, we observed recurrent flux variations with a period of 27 days. Shorter periods of 9 days and 13.5 days are observed in 2016. The strength of all three periodicities...
In high energy physics experiments, visualization not only plays important roles in detector design, data quality monitoring, simulation and reconstruction, but also aids physics analysis to improve the performance.
Besides the traditional physics data analysis based on statistical methods, the visualization method is intuitive and can provide unique advantages, especially in searching for...
The CDF collaboration reported an anomaly of the W boson mass in 2022. We discuss the possibility to explain the anomaly in a gauge-Higgs unification model. We evaluate the W boson mass in the GUT inspired SO(5) × U(1) × SU(3) gauge-Higgs unification in the Randall-Sundrum warped space. The muon decay proceeds by the exchange of not only the zero mode of the W boson but also Kaluza-Klein...
If a high school student asks ten physicists what a particle is, he/she might get ten different answers, including a) particle is what we see in the detector, b) a point-like object with mass and various charges, c) a collapsed wave function, d) an excitation of a quantum field or even e) an irreducible representation of the Poincare group. I will briefly discuss strong and weak points of the...
