Conveners
Poster session NB: do not use Safari; use Firefox, Chrome or Edge
- Francesca Dordei (INFN, Cagliari (IT))
- Hélio da Motta (CBPF)
- Matteo Cadeddu (INFN)
Description
https://www.wonder.me/r?id=8c4ab10d-737f-4fdf-8990-4d8915e57ea4
A technique has been recently proposed to address the main limitations of past neutrino scattering experiments. In particular, it allows precise measurements of high statistics samples of (anti)neutrino-hydrogen interactions together with various nuclear targets. The planned high intensity LBNF beams give access to a broad mixture of measurements of electroweak parameters, QCD and hadron...
Pandora [1,2] is a pattern recognition software used in liquid argon
time projection chamber (LArTPC) experiments such as MicroBooNE, DUNE,
SBND, ICARUS, and ProtoDUNE Single Phase (SP). The output of a LArTPC
can be considered a high-resolution 2D image and energy depositions,
called hits, from particles in a LArTPC create complicated topologies
that are broadly classified into tracks...
We show that one of the simplest extensions of the Standard Model, the addition of a second Higgs doublet, when combined with a dark sector singlet scalar, allows us to: $i)$ explain the long-standing anomalies in the Liquid Scintillator Neutrino Detector (LSND) and MiniBooNE (MB) while maintaining compatibility with the null result from KARMEN, $ii)$ obtain, in the process, a portal to the...
The focus of the long-baseline neutrino oscillation experiments that
are currently being built is the precise measurement of the neutrino oscillation
parameters which will require good control of the systematic
uncertainties including those of the neutrino interaction models.
A novel three-dimensional projection scintillation tracker will be
the active target of the ND280 near...
The long-baseline neutrino experiment Tokai-to-Kamiokande (T2K) is located in Japan and is measuring neutrino oscillation parameters. The muon neutrino charged current interactions in the near detector (ND280) are used to predict the event rate at the far detector, in particular constraining the neutrino flux and neutrino-nucleus interaction cross-sections, which are the dominant systematic...
The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) uses fully depleted high-resistivity CCDs (Charge Coupled Devices) to detect the coherent elastic neutrino-nucleus scattering (CE$\nu$NS) of reactor antineutrinos with Silicon nuclei and probe physics beyond the Standard Model. CONNIE is located at a distance of 30 m from the core of the 3.8 GW Angra-2 nuclear reactor, in...
CPT symmetry is considered to be an exact symmetry of nature. Although no definitive signal of CPT violation has been observed so far, there are many reasons to carefully investigate various low-energy phenomena that can provide better probes to test CPT symmetry. In this context, neutrino experiments are expected to provide more stringent bounds on CPT invariance violations than the Kaon...
The couplings between the neutrinos and a singlet fermion can be probed in both neutrino scattering experiments and dark matter direct detection experiments. In this talk, we discuss a detailed analysis of the general neutrino interactions with a singlet fermion at neutrino-electron scattering experiments. We obtain the constraints on the coupling coefficients of the scalar, pseudoscalar,...
The Belle II experiment at the asymmetric $e^+e^-$ collider, SuperKEKB, is a substantial upgrade of the Belle/KEKB experiment. Belle II aims to record 50 ab$^{-1}$ of data over the course of the project. During the first physics runs in 2018-2020, around 100 fb$^{-1}$ of data were collected. These early data include specifically-designed low-multiplicity triggers which allow a variety of...
The current phase of the Super-Kamiokande experiment, SK-Gd, is characterized by the addition of gadolinium sulfate to the water Cherenkov detector, which improves the detection capability of thermal neutrons. For low energy events, the main detection channel for electron anti-neutrinos is the Inverse Beta Decay interaction, which has, in its final state, a positron and a neutron. The neutron...
The “muon-to-electron conversion” (Mu2e) experiment at Fermilab will search for the Charged Lepton Flavour Violating neutrino-less coherent conversion of a muon into an electron in the field of an aluminum nucleus. The observation of this process would be the unambiguous evidence of physics beyond the Standard Model. Mu2e detectors comprise a straw-tracker, an electromagnetic calorimeter and...
The Deep Underground Neutrino Experiment (DUNE) will feature a 40-kton liquid argon TPC detector situated a mile below the surface at the Sanford Underground Research Facility. A new broadband high-intensity neutrino source and Near Detector complex will be located at Fermilab, 1300 kilometers away. This arrangement will provide unprecedented sensitivity in the search for neutrino CP...
ESSnuSB is a design study for a high precision future experiment at ESS, which will measure CP violation in the lepton sector at the second neutrino oscillation maximum. The experiment is based on a neutrino superbeam and will feature both near and far detectors. This talk will report on the baseline configuration of the near and far detectors. The progress of design and simulation of the far...
We explore the role of matter effect in the evolution of neutrino oscillation parameters in the presence of lepton-flavor-conserving and lepton-flavor-violating neutral-current non-standard interactions (NSI) of the neutrino. We derive simple approximate analytical expressions showing the evolution/running of mass-mixing parameters in matter in the presence of standard interactions (SI) and...
T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment located in Japan. One of the most challenging tasks of T2K is to determine whether CP is violated in the lepton sector, which is suggested by recent T2K results. By utilizing the near detector (ND280) data, T2K can constrain neutrino interaction and flux uncertainties by fitting a parametrised model to data. This allows...
This talk presents a model of the electron-like excess observed by the MiniBooNE experiment comprising of oscillations involving two new mass states: $\nu_4$, at $\mathcal{O}(1)$ eV, that participates in oscillations, and $\mathcal{N}$, at $\mathcal{O}(100)$ MeV, that decays to $\nu+\gamma$ via a dipole interaction.
Short-baseline oscillation data sets, omitting MiniBooNE appearance data, are...
A detailed understanding of Earth's Matter effect is inevitable to correctly analyze the data from the upcoming high-precision long-baseline experiments to resolve the remaining fundamental unknowns such as neutrino mass ordering, leptonic CP violation and precision measurements of the oscillation parameters. In this paper, for the first time, we explore in detail the capability of Deep...
We discuss the effect of environmental decoherence on matter-effective neutrino
oscillation probabilities. Decoherence is a phenomenon observed in systems in-
teracting with the environment. We treat the neutrinos as an open quantum
system and by using the Lindblad Master equation we study the evolution of
neutrino states. The matter effect is incorporated for neutrinos passing...
The MicroBooNE detector has an active mass of 85 tons of liquid argon and is located along the Booster Neutrino Beam (BNB) at Fermilab. It has a rich physics program including the search for a low-energy excess observed at MiniBooNE and measurements of neutrino-Argon interaction cross sections. In this talk, we present a procedure, using the Wiener-SVD unfolding method, to extract the nominal...
The ICARUS detector will operate at shallow depth and therefore it will be exposed to the full surface flux of cosmic rays. This poses a problematic background to the electron neutrino appearance analysis. A direct way to suppress this background is to surround the cryostat with a detector capable of tagging incident cosmic muons with high efficiency (~95\%). A cosmic ray tagger (CRT) consists...
Borexino is a large-volume liquid-scintillator experiment designed for real-time detection of low energy solar neutrinos. It is located at Laboratori Nazionali del Gran Sasso (INFN) and started taking data in May 2007. This talk will report about the latest results of Borexino: the direct observation of neutrinos produced in the carbon-nitrogen-oxygen (CNO) fusion cycle in the Sun. The...
Current and future generation neutrino oscillation experiments aim towards a high-precision measurement of the oscillation parameters, which requires an unprecedented understanding of neutrino-nucleus scattering. Charged-current quasi-elastic (CCQE) scattering is the process in which the neutrino produces a charged lepton and removes a single intact nucleon from the nucleus without producing...
QED effects are controllable and calculable corrections that must be understood for percent-level neutrino cross section inputs. Of particular importance are ``enhanced'' corrections stemming from either large-logs or coherent effects. Of particular importance are corrections that depend on lepton mass, or the sign of the charged lepton that is produced. In the former case, the mass dependence...
With the Standard Model being unable to describe the observed baryon asymmetry or dark matter density in the universe, many models of the New Physics introduce heavy neutrino species as a possible explanation for these effects. Dirac or Majorana neutrinos with masses above the EW scale could be produced at future linear e+e- colliders, like the Compact LInear Collider (CLIC) or the...
Energy levels of muonic hydrogen, the bound state of proton and muon, are very sensitive to the inner structure of the proton. The two-photon exchange contribution can be inferred from the ground-state hyperfine splitting (1S‑HFS), the energy separation of the singlet (F = 0) and triplet (F = 1) spin states. The CREMA collaboration at the Paul Scherrer Institute aims to...
Large liquid argon time projection chambers (LAr TPCs) at SBN and DUNE will provide an unprecedented amount of information about GeV-scale neutrino interactions. By taking advantage of the excellent tracking and calorimetric performance of LAr TPCs, we present a novel method for estimating the neutrino energy in neutral current interactions that significantly improves upon conventional methods...
The superscaling SuSAv2 model, that was successfully used to explain electron scattering data in the quasielastic (QE) as well as in the high inelastic regions (see [1] and refs. therein), is here extended to charged-current neutrino scattering processes on nuclei. We provide a detailed description of the Delta nucleon resonance and compare our predictions based on the pure Relativistic Fermi...
In a seesaw scenario, GUT and family symmetry can severely constrain the structure of the Dirac and Majorana mass matrices of neutrinos. We will discuss an interesting case where these matrices are related in such a way that definite predictions for light neutrino masses are achieved without specifying the seesaw scale. This opens up the possibility to consider both high- and low-scale...
The framework of this paper is based on super-symmetric linear seesaw where we introduce modular $\Gamma^{\prime}_5 \simeq A^{\prime}_5$ group. In order to explore neutrino phenomenology with well defined mass structure to quite an accuracy we introduce six heavy sfermions along with a scalar. However, modular symmetry reduces the usage of scalars significantly. Here the Yukawa couplings make...
The Deep Underground Neutrino Experiment (DUNE) is a leading-edge, international experiment for neutrino science and proton decay studies. ProtoDUNE-SP is one of two liquid argon time projection chambers (LArTPCs) built at CERN using the single phase technology to test the design and robustness of the detector components for DUNE. ProtoDUNE-SP accumulated over 4 million beam events in the...
The MicroBooNE detector is a liquid argon time projection chamber (LArTPC) with an 85 ton active mass that receives flux from the Booster Neutrino and the Neutrinos Main Injector (NuMI) beams, providing excellent spatial resolution of the reconstructed final state particles. Since 2015 MicroBooNE has accumulated many neutrino and anti-neutrino scatterings with argon nuclei allowing for...
The NA62 experiment reports the branching ratio measurement BR(K+→π+νν) at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016-2018. This provides evidence for the very rare K+→π+νν decay, observed with a significance of 3.4σ. The experiment achieves a single event sensitivity of...
NOvA is a long-baseline accelerator neutrino experiment primarily designed to measure neutrino oscillations. NOvA utilizes two functionally-identical detectors that lie 14.6 mrad off-axis from the NuMI neutrino beam. The near detector, positioned 1 km downstream of the beam target, provides an excellent platform to perform high-statistics measurements of neutrino cross sections and associated...
The FAMU (Fisica degli Atomi Muonici) experiment has the goal to measure precisely the proton Zemach radius, with incoming low energy muons. It will contribute to precision tests of QED and may contribute to shed more light on the so-called proton radius “puzzle”, by studying the electromagnetic structure of the proton and muon nucleon interactions. To this aim, the FAMU experiment makes...
The Deep UndergroundNeutrino Experiment (DUNE) is a next generation long-baseline neutrino experiment hosted by the Fermilab. DUNE will be able to unambiguously determine the neutrino mass hierarchy and measure the value of the CP-violating phase. The single-phase liquid argon far-detector prototype (ProtoDUNE-SP) at the CERN neutrino platform serves as a prototype to validate the technology...
Charge-Parity-Time (CPT) symmetry governs that the oscillation parameters for neutrinos and anti-neutrinos are to be identical. Different mass and mixing parameters for these particles may give us a possible hint for CPT violation in the neutrino sector. Using this approach, we discuss the ability of long-baseline and atmospheric neutrino experiments to determine the difference between mass...
The 4.2𝜎 deviation of the anomalous muon magnetic moment measurements recently performed at Fermilab with respect to the state of the art theory prediction has strengthened the motivation for standard model extensions. In this talk, we analyse a model involving an additional 𝑍𝑑 mediator and we show the constraints obtained considering the muon and electron magnetic moment determinations and...
China Spallation Neutron Source (CSNS) at Dongguan, China, has been in operation since August 2018. Its accelerator complex delivers a proton beam of 100 kW in beam power, 1.6 GeV in kinetic energy and 25 Hz in repetition rate. The Experimental Muon Source (EMuS) is planned to be constructed from 2022 as a part of the CSNS-II project, and will utilize a proton beam of 25 kW in a standalone...
On behalf of the JUNO Collaboration
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator detector currently being built in a dedicated underground laboratory in China. It is a multi-purpose underground experiment with a physics program including neutrino mass hierarchy determination, precision measurement of neutrino oscillation parameters, measurement of...
We propose a neutrino beam source based on the Gamma Factory Initiative to develop a source of high-intensity gamma rays using the existing accelerator facilities at CERN. The Partially Stripped Ion beam collides head-on with a laser and emits photons. It could increase the intensity of produced photon beam reaching a flux of the order of $10^{17}$ photons per second, in the $\gamma$ energy...
The excess in electron recoil events reported recently by the XENON1T experiment may be interpreted as evidence for a sizable transition magnetic moment of Majorana neutrinos. We show the consistency of this scenario when a single component transition magnetic moment takes values ϵ (1.65 - 3.42) × $10^{-11}$ $\mu_B$. Such a large value typically leads to unacceptably large neutrino masses. We...
The recent technological progresses in silicon pixel detectors are opening new avenues for accelerator based neutrino experiments. Indeed, at neutrino beams, these detectors could allow to track all beam charged particles. Such information would allow to reconstruct individually all the $\pi^\pm \to \mu^\pm \nu$ decays which is the major source of beam neutrinos. As a results, the flavour and...
The Neutrinos from Stored muons (nuSTORM) facility has been proposed to measure neutrino-nucleon cross-sections with percent level precision. It has been shown that nuSTORM with a detector for short baseline oscillation search has excellent capability to search for the existence of light sterile neutrinos that have been postulated to explain the LSND and MiniBooNE results. This analysis used...
With the Main Injector Neutrino Oscillation Search (MINOS) experiment decommissioned, muon and hadron monitors became an important diagnostic tool for the NuMI Off-axis νμ Appearance (NOvA) experiment at Fermilab to monitor the Neutrinos at the Main Injector (NuMI) beam. The goal of this study is to establish correlations between muon monitor and other beamline detector signals and upstream...
Neutrino oscillation physics has now entered the precision era. In parallel with needing larger detectors to collect more data with, future experiments further require a significant reduction of systematic uncertainties with respect to what is currently available. In the neutrino oscillation measurements from the T2K experiment the systematic uncertainties related to neutrino interaction cross...
Unified theories such as string theory suggests spontaneous Lorentz Invariance Violation(LIV) by introducing a new spacetime structure at the Planck Scale ($m_p \sim 10^{19}$ GeV). This effect can be observed at low energies with strength of $\sim 1/m_p$ using perturbative approach. In the Minimal Standard Model Extension (SME) framework, the neutrino mass-induced flavor oscillation gets...
Muon Collider is an extremely attractive option for the future energy-frontier machine. It is capable of delivering clean final states of lepton collisions at multi-TeV centre-of-mass energy with the minimal energy consumption. Being a less familiar type of machine compared to e+e- and pp colliders it poses a number of technological challenges that need to be addressed, including the...
Neutrino-nucleus scattering becomes complex within the nuclear environment due to re-interactions of initially produced particles with other nucleons at the initial neutrino-nucleon interaction vertex. This leads to variable final state products and thus limit our understanding of fundamental neutrino-nucleus scattering. Neutrino-nuclei interactions and understanding neutrino physics from...
Rhea Space Activity (RSA) proposes to develop a real-time beam control with an in-situ FPGA-based neutral net. RSA plans to develop a collection of machine learning (ML) algorithms designed to learn the global features of large parameter spaces with the agility of adaptive feedback methods that are model-independent and can automatically adapt to changing and potential anomalies. This adaptive...
NOvA is a long-baseline experiment studying neutrino oscillations and measuring cross sections in the Fermilab NuMI neutrino beam. It consists of two functionally identical, fine-grained detectors which are separated by 810 km and situated 14.6 mrad off the NuMI beam axis. By measuring the transition probabilities $P(\nu_\mu → \nu_e)$ and $P(\nu_μ → \nu_μ)$ using both neutrinos and...
The DUNE experiment aims to precisely measure the long baseline neutrino
oscillation parameters. The DUNE Far Detector consists of four liquid argon time-projection chambers (total LAr mass of 17 kton for each cryostat), that will be installed at the Sanford Underground Research Facility (SURF) in South Dakota, 1300 km from the proton beam target.
The Near Detector complex, located at...
A search for lepton flavour violating (LFV) decays of the Higgs boson to a muon and a tau, and an electron and a tau, will be presented. A dataset of 137fb-1 of proton-proton collisions collected by the CMS detector in Run II, at a center-of-mass energy of 13TeV is being used to perform the search. The dominant background contributions for this search are coming from the Drell-Yan process,...
New results are presented for the search for charged lepton flavor violating decays of tau leptons to three muons with the CMS detector. The search employs tau leptons produced in decays of heavy flavor B/D mesons and W bosons.
Nuclear effects in neutrino-nucleus scattering is one of the main sources of uncertainty in the analysis of neutrino oscillation experiments. At present most of these studies have been focused on inclusive scattering processes where only the scattered lepton is detected in the final state. This implies, due to the extended neutrino energy distribution (flux), that very different reaction...
Arapuca is "bird trap" built by Brazil's natives. On the other hand, our ARAPUCA is a light trap that increases the collection area of regular SiPMs and it is the sensitive element upon which DUNE's whole photon detection system is based upon. Here we present the journey to build a reliable state-of-the-art simulation of such device, highlighting the process of modeling its dichronic filters,...
The proposed magnetized Iron Calorimeter (ICAL) detector to study atmospheric neutrinos and anti–neutrinos at the India based Neutrino Observatory (INO) is a 51 K ton detector which will have a magnetic field of 1.3 T. The default geometry of ICAL has 56 mm thick iron plates as the interaction material (target), separated by 40 mm gaps in which the active detectors the resistive plate...
The muon campus program at Fermilab includes the Mu2e experiment that will search for a charged-lepton flavor violating processes where a negative muon converts into an electron in the field of an aluminum nucleus, improving by four orders of magnitude the search sensitivity reached so far.
Mu2e’s Trigger and Data Acquisition System (TDAQ) uses {\it otsdaq} solution. Developed at Fermilab,...
The The J-PARC Sterile Neutrino Search at the J-PARC Spallation Neutron Source (JSNS2) experiment has the unique ability to precisely measure monoenergetic 236 MeV neutrinos from charged kaon decay-at-rest (KDAR). J-PARC's Material and Life Science Facility (MLF) 3 GeV primary proton beam incident on a mercury target generates the world’s most intense source of KDAR which can be used to make...
From the discovery of the neutrino to the measurement of the last of the neutrino mixing parameters, nuclear reactors have proved indispensable in the study of these particles, of which much remains to be unveiled. Recent and past measurements using reactor neutrinos rely on the prediction of their spectrum, a non-trivial exercise involving ad- hoc methods and carefully selected assumptions. A...
The neutrino mass generation mechanism is a mystery so far which explains the possible origin of the tiny observed neutrino masses and the flavor mixings over the decades- which indicates the existence of the beyond the Standard Model (BSM) physics, however, there is no observation of such BSM physics so far. Among the plethora of scenarios, the simple tree level mass generation mechanism with...
DUNE is an underground neutrino oscillation experiment that will be performing precision measurements of the PMNS matrix to determine unambiguously the mass ordering and the leptonic CP violation. It also comprises a rich non-accelerator physics program for the detection of supernova neutrinos, nucleon decay, and BSM physics. DUNE employs a high-power neutrino beam under construction at...
The Mu2e calorimeter consists of 1348 pure CsI crystals coupled to
two large area UV-extended Silicon Photomultipliers (SiPMs) organized in two separate annular disks.
An intense R & D phase has been pursued to check if this configuration satisfies the Mu2e requirements.
In May 2017, a dedicated test has been performed at the Beam Test Facility (BTF) in Frascati (Italy)
where a large...
The Iron Calorimeter (ICAL) detector at the proposed India-based Neutrino Observatory (INO) aims to detect atmospheric neutrinos and antineutrinos separately in the multi-GeV range of energies and over a wide range of baselines. By utilizing its charge identification capability, ICAL can efficiently distinguish $\mu^-$ and $\mu^+$ events. Atmospheric neutrinos passing long distances through...
In this work, we study the effect of vector leptoquark $U_3$ which can induce nonstandard interactions (NSIs) between the propagating neutrinos and the nucleons within the earth. These interactions lead to relatively large values of NSI parameter $\varepsilon_{e \mu}$ and $\varepsilon_{e \tau}$. In this context, we show that the current discrepancy between the observed $\delta_{CP}$ results...
