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10/26/26, 2:00 PM
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Fabrizio Arturo Caola (University of Oxford (GB))10/26/26, 2:30 PM
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10/26/26, 3:00 PM
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10/26/26, 3:30 PM
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Ben Page (Ghent University (BE))10/26/26, 4:30 PM
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Ramon Winterhalder (Università degli Studi di Milano)10/26/26, 5:00 PM
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10/26/26, 5:30 PM
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10/26/26, 6:00 PM
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10/28/26, 2:00 PM
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10/28/26, 2:30 PM
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Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL))10/28/26, 3:00 PM
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Emanuele Roberto Nocera10/28/26, 3:30 PM
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10/28/26, 4:30 PM
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10/28/26, 5:00 PM
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10/28/26, 5:30 PM
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10/28/26, 6:00 PM
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Eleni Vryonidou (University of Cambridge), Eleni Vryonidou (Universite catholique de Louvain), Eleni Vryonidou (Nikhef), Eleni Vryonidou (University of Cyprus (CY))10/29/26, 2:00 PM
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10/29/26, 2:30 PM
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Gudrun Heinrich (KIT)10/29/26, 3:00 PM
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10/29/26, 3:30 PM
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Alberto MARIOTTI (Vrije Universiteit Brussel), Alberto Mariotti, Alberto Mariotti (VUB Brussels)10/29/26, 4:30 PM
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THOMAS HAMBYE (IDP - ULB (Universite libre de Bruxelles)), Thomas HAMBYE (ULB), Thomas Hambye, Thomas Hambye (ULB Belgium), Thomas Hambye (Unknown)10/29/26, 5:00 PM
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Joe Davighi (University of Cambridge (GB))10/29/26, 5:30 PM
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Lorenzo Sestini (Universita e INFN, Firenze (IT))10/29/26, 6:00 PM
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Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna)10/30/26, 9:00 AM
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Stefania De Curtis (U), Stefania De Curtis (Universita e INFN, Firenze (IT))10/30/26, 9:30 AM
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10/30/26, 10:00 AM
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10/30/26, 10:30 AM
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10/30/26, 11:30 AM
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Aude Gehrmann-De Ridder (ETH Zurich)10/30/26, 12:00 PM
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Tevong You (King's College London), Tevong You10/30/26, 12:30 PM
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10/30/26, 1:00 PM
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Beyond the Standard Model Higgs
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. Many extensions of the Standard Model addressing such shortcomings introduce additional neutral Higgs-like bosons or additional...
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Enliang Ren (University of Southampton)Beyond the Standard Model Higgs
Axion-like particles (ALPs) are predicted in many extensions of the Standard Model (SM) and are well-motivated benchmark candidates for new physics searches at colliders. We investigate the constraints on the dimension-6 portal coupling between the ALP and the Higgs boson at the High Luminosity LHC. When the ALP mass is below half of the Higgs mass, this interaction is efficiently constrained...
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Jacopo Malvaso (Deutsches Elektronen-Synchrotron (DE))Precision Higgs measurements
This presentation reports a measurement of the charge-parity structure of the Yukawa coupling between the Higgs boson and tau leptons using proton-proton collision data recorded by the CMS experiment at ($\sqrt{s} = 13.6~\mathrm{TeV}$) during 2022 and 2023, corresponding to an integrated luminosity of $62.4~\mathrm{fb}^{-1}$. The analysis targets Higgs boson decays to tau-lepton pairs and...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
The study of Higgs boson production in the boosted regime provides enhanced sensitivity to the Higgs production mechanism and to possible effects of physics beyond the Standard Model. This talk reviews the latest ATLAS measurements and analyses targeting boosted Higgs boson topologies with Run 2 and Run 3 data.
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Congqiao Li (Peking University (CN))Higgs Potential, Di-Higgs, and Multi-Higgs
Following our Higgs Pairs Workshop talk and studies in Ref. [1], we have carried out a comprehensive study of the "jet-free methodology", which performs a global analysis of all particles in an event without relying on conventional jet reconstruction. As a brief recap, Ref. [1] showed that, for the HH→4b channel, this approach...
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Dr Yang Ma (UCLouvain)Higgs Physics at Future Colliders
In this talk, I will present a comprehensive study of Higgs boson production associated with a neutrino pair at $𝑒^+𝑒^−$ colliders ($𝑒^+𝑒^−\to h\nu\bar{\nu}$) at NLO electroweak (EW) accuracy in both the SM and the two-Higgs-doublet model (2HDM). I will show that new physics effects from the extended Higgs sector can be probed through EW corrections, which lead to deviations from the SM...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Higgs Potential, Di-Higgs, and Multi-Higgs
The Higgs boson self-coupling is a fundamental parameter of the Standard Model and directly probes the structure of the Higgs potential. This talk presents the latest ATLAS combinations of di-Higgs production searches together with complementary constraints on the Higgs self-coupling from precision single-Higgs measurements through electroweak corrections.
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
This talk summarizes the measurements of Higgs boson coupling strengths and EFT interpretations based on combination of measurements from multiple channels based on Run 2 data collected by the ATLAS experiment.
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
The discovery of the Higgs boson ten years ago and successful measurement of the Higgs boson couplings to third generation fermions by ATLAS and CMS mark great milestones for HEP. The much weaker coupling to the second generation quarks predicted by the SM makes the measurement of the Higgs-charm coupling much more challenging. With the Run3 data collected by the CMS experiment, a lot of...
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Hongbo Liao (Chinese Academy of Sciences (CN))Beyond the Standard Model Higgs
The latest results are presented in the search for Higgs boson decay to invisible signatures, using the Run-3 data set collected by the CMS experiment.
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Alexander Lind (INFN Laboratori Nazionali di Frascati (LNF))Beyond the Standard Model Higgs
We present a phenomenological study on the constraints of new physics using Simplified Template Cross Section (STXS) measurements of the Higgs transverse momentum distribution with H1jet and HiggsSignals. H1jet is a fast code that computes the transverse momentum distribution of a colour-singlet, allowing for quick scans over the parameter space in various Beyond-the-Standard Model (BSM)...
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Guglielmo ColorettiHiggs Potential, Di-Higgs, and Multi-Higgs
The observation of resonant di-Higgs production, which would strongly suggest the existence of a new heavy neutral scalar H, has been searched for extensively at the LHC. In the 2HDM with mH >> mh , where h is the Higgs boson of mass 125 GeV observed at the LHC, we show that a direct correlation emerges between Br[ H → hh ], Br[ H → hhh ] and Br[ H → VV ], with V = Z, W, which depends only on...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
The investigation of the CP nature of Higgs boson couplings to fermions is a key test of the Yukawa sector and a sensitive probe of new sources of CP violation. This talk summarizes the latest ATLAS measurements of the CP properties of Higgs couplings to fermions using Run 2 and Run 3 data.
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
The study of the CP structure of Higgs boson interactions with vector bosons provides a powerful probe of physics beyond the Standard Model and of possible new sources of CP violation. This talk presents the latest ATLAS measurements of the CP properties of Higgs couplings to vector bosons using Run 2 and Run 3 data.
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
We will discuss the latest differential measurements of Higgs boson cross sections with the CMS detector in bosonic decay channels. Both fiducial differential cross section measurements and measurements in the simplified template cross section framework will be presented. The data collected during Run 3 of the LHC by the CMS experiment are used.
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
We will discuss the latest inclusive and differential measurements of Higgs boson cross sections with the CMS detector in fermionic decay channels. The data collected during Run 3 of the LHC by the CMS experiment are used.
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Marco Bonetti (Eberhard Karls Universität Tübingen)Higgs Potential, Di-Higgs, and Multi-Higgs
Constraining the trilinear coupling of the Higgs boson is one of the main goals of the High-Luminosity phase of the LHC. To match experimental projections, theory predictions must reach percent-level uncertainties, requiring the computation of electroweak effects and secondary channels of production.
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I will present the quark-initiated contributions to double Higgs boson production,... -
Paolo GarbarinoHiggs Potential, Di-Higgs, and Multi-Higgs
The Large Hadron Collider (LHC) is collecting an incredible amount of data, allowing for precise comparisons between theory predictions and experimental measurements in order to further test the Standard Model and possible New Physics scenarios.
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Theoretical computations involving heavy resonances mostly focused on fully-leptonic decays, mainly due to the huge simplifications arising when... -
Daniel Stremmer (KIT)Higgs Potential, Di-Higgs, and Multi-Higgs
We present the C++ library ggxy, which enables the fast and flexible calculation of partonic and hadronic cross sections for gluon-initiated top-mediated processes. Currently, it supports the production of HH, ZH and VV in gluon fusion at NLO QCD with full top-quark mass dependence. While all other parts are exact, the two-loop amplitudes with internal top quarks have been computed using...
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Carlos Vazquez Sierra (Universidade da Coruña (ES))Beyond the Standard Model Higgs
The LHCb forward geometry, low-momentum acceptance and fully software-based trigger provide distinctive sensitivity to light scalar and pseudoscalar particles. This contribution will discuss recent Run 3 developments that extend this reach, particularly for displaced and unconventional signatures.
GPU-based downstream tracking and SciFi-only T-track reconstruction recover decays occurring...
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Handan YILMAZ (İstanbul Technical University)Higgs Physics at Future Colliders
Precision measurements in Higgs physics at the LHC and future collider facilities require highly stable beam conditions, accurate detector-response characterization, and fast diagnostic systems. In this context, plastic scintillators provide attractive candidates for compact and radiation-tolerant monitoring devices, while their Cherenkov component may offer additional timing-sensitive...
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Ang Li (Brookhaven National Laboratory (US))Higgs Physics at Future Colliders
The FCC-ee programme is uniquely positioned to determine the fundamental properties of the Higgs boson with unprecedented precision. At centre-of-mass energies of 240 and 365 GeV, FCC-ee will produce millions of Higgs bosons through Higgsstrahlung, complemented by a sizeable WW-fusion sample at 365 GeV. The clean experimental environment and the known initial state allow a model-independent...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
Precise measurements of Higgs boson production cross-sections provide stringent tests of the Standard Model and are essential for probing possible deviations induced by new physics. This talk presents the latest inclusive and differential Higgs boson production cross-section measurements performed by the ATLAS experiment using Run 2 and Run 3 data.
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Dr Anne-Catherine Le Bihan (Centre National de la Recherche Scientifique (FR))Precision Higgs measurements
The H→ττ decay channel is a powerful probe of the Higgs boson's coupling to third-generation fermions and serves as a sensitive portal to a broad range of SM and BSM physics phenomena. This talk presents a suite of analyses exploiting the H→ττ final state with the CMS detector using proton-proton collision data collected during Run 3 of the LHC at 13.6 TeV.
The latest measurement of...
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Simone Tentori (UCLouvain)Beyond the Standard Model Higgs
HL-LHC Higgs precision measurements will provide an unprecedented opportunity to test the Higgs potential, in particular enabling the first measurement of the Higgs self-coupling. In this talk, I will show how these measurements, together with direct searches, can be used to constrain the Singlet Scalar Extension of the Standard Model (RxSM) in the region of parameter space relevant for...
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
To fully characterize the Higgs boson, it is important to establish whether it presents properties that are not expected in the Standard Model of particle physics. In this talk we will present the most recent measurements from the CMS experiment of Higgs properties probing BSM effects, including anomalous couplings, CP violations, polarizations.
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Higgs Physics at Future Colliders
Higgs physics will be a main focus of the energy frontier of particle physics at future colliders. This talk summarizes the Higgs prospect studies from ATLAS experiment.
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Julie Munch Torndal (Deutsches Elektronen-Synchrotron (DE))Higgs Potential, Di-Higgs, and Multi-Higgs
The Higgs self-coupling measurement is vital for determining the shape of the Higgs potential and establishing the Higgs mechanism experimentally. Through double Higgs production, the Higgs self-coupling can be accessed already at tree level at future $e^+e^-$ colliders. At 550 GeV, the dominant production mode of double Higgs-strahlung with the $ZHH$ final state provides discovery reach on...
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Wrishik Naskar (DESY)Higgs Potential, Di-Higgs, and Multi-Higgs
In this talk, I shall point out the relevance of a new class of model-independent higher-order contributions to the trilinear and quartic self-couplings of the detected Higgs boson giving rise to potentially large effects of physics beyond the Standard Model (SM). It consists of SM-like diagrams with insertions of loop-corrected values for the trilinear and quartic Higgs self-couplings. While...
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Sebastian SchuhmacherBeyond the Standard Model Higgs
In this talk we summarize the findings of arXiv 2102.12020 and 2604.01125, as well as further developments.
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Considering the extension of the Standard Model by a heavy, real Higgs singlet, we carefully define a decoupling limit on the basis of phenomenologically accessible parameters and integrate out the heavy degrees of freedom at the one-loop level.
We directly integrate out the heavy... -
Tania Robens (Rudjer Boskovic Institute (HR))Higgs Potential, Di-Higgs, and Multi-Higgs
Multi scalar searches are a perfect tool to probe the structure of the electroweak vacuum through double and triple scalar production. However, many experimental searches follow a factorized approach where contributions from background as well as interference effects are neglected. In this talk, I will discuss how this can lead to non correct descriptions of the corresponding differential...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))
Searches for rare and exotic decays of the Higgs boson serve as stringent tests of SM and also provide a portal to probe potential new physics. This talk summarizes the searches for various exotic decay scenarios of the Higgs bosons, including lepton-flavor violating decays and decays to BSM particles
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
The mass and width of the Higgs boson are its key properties. The Higgs boson mass is a free parameter of the SM that is closely related to the stability of the universe. The Higgs boson width, on the other hand, reflects the overall interactions involved in Higgs boson decays and is hence sensitive to new physics. This talk presents the latest measurements of Higgs boson mass and width from...
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
An important aspect of the Higgs boson physics programme at the LHC is to determine all the properties of this particle, including its mass, which is a free parameter in the SM, and its width. This presentation will discuss the latest developments in measurements of the Higgs boson mass and width, with data collected by the CMS experiment at a centre of mass energy of 13 TeV.
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Matheus Coelho (Center for Natural and Human Sciences, Federal University of ABC - UFABC)Higgs Potential, Di-Higgs, and Multi-Higgs
The Higgs trilinear self-coupling plays a fundamental role at the core of the Standard Model (SM), as it is deeply connected to the Higgs mechanism and electroweak symmetry breaking (EWSB). Di-Higgs (HH) production allows us to directly access this parameter, making it a valuable target for experimental analyses. The measurement of this coupling can confirm SM predictions or point to beyond SM...
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Spyros Merianos (Université catholique de Louvain)Higgs Potential, Di-Higgs, and Multi-Higgs
Measuring the Higgs self-couplings is one of the major goals of the LHC and HL-LHC programmes, as these couplings provide direct access to the structure of the Higgs potential. Deviations from their Standard Model values could indicate new physics and motivate interpretations within frameworks such as Higgs Effective Field Theory (HEFT). Multi-Higgs production offers the most direct...
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Nathan Prouvost (Hamburg University (DE))Higgs Potential, Di-Higgs, and Multi-Higgs
Simulating the behaviour of di-Higgs processes in the SM and beyond for any possible coupling value is a computationally expensive endeavour, especially due to the high dimensionality involved. The matrix method is currently being used to emulate different coupling values from a few originally simulated samples (the basis) and calculate limits on the corresponding coupling values. This talk...
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Hongbo Liao (Chinese Academy of Sciences (CN))Higgs Potential, Di-Higgs, and Multi-Higgs
The measurement of the production of Higgs boson pairs (HH) and triplets (HHH) at the LHC allows the exploration of the Higgs boson interaction with itself and is thus a fundamental test of the Standard Model theory and has a key role in the determination of the Higgs boson nature. The most recent results from the CMS collaboration on measurements of non-resonant HH production using different...
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Matteo Marcoli (University of Durham), Matteo Marcoli, Matteo MarcoliPrecision Higgs measurements
We consider the production of a boosted Higgs boson in association with a charged weak (W) boson from proton-proton collisions at the LHC. Using the qT-slicing formalism, we obtain the first fully differential predictions for this process at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD. In the boosted regime, the N3LO corrections are about +2%, and remain outside the scale...
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Jose Angel Hernandez Cuevas (Albert-Ludwigs-Universität Freiburg)Beyond the Standard Model Higgs
Although the Standard Model (SM) of particle physics has been successful in giving high-precision predictions conforming to experimental data, there are still some phenomena that cannot be explained by this model. These include the existence of dark matter, the matter-antimatter asymmetry of the universe, and the origin of neutrino masses. Two-Higgs-Doublet Models (THDMs) are among the...
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Artemis Sofia Giannakopoulou (University of Freiburg)Beyond the Standard Model Higgs
In this work we consider the general Georgi-Machacek (GM) model at next-to-leading-order. The GM model extends the Standard Model scalar sector by one real and one complex electroweak triplet. In its most general form, the scalar potential contains custodial-symmetry-violating interactions already at tree level. We incorporate these effects into a renormalization scheme including on-shell as...
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Francesco Garosi (Max Planck Institut für Physik)Higgs Potential, Di-Higgs, and Multi-Higgs
While many of the Higgs couplings have already been measured with remarkable precision, the structure of the Higgs potential is still largely unconstrained. In this context, Higgs-boson pair production plays a special role, as it provides direct access to the Higgs self-coupling.
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In this talk, I will present results for Higgs-boson pair production in gluon fusion at hadron colliders at... -
Daniel Winterbottom (Imperial College (GB))Precision Higgs measurements
The $H\rightarrow\tau\tau$ channel is one of the most sensitive probes of CP violation in the Higgs sector, essential for understanding the origin of the baryon asymmetry of the universe. The CP properties of the tau Yukawa coupling affect the spin correlations between the tau leptons, which can be measured by analysing the angular correlations between the tau lepton decay products. These spin...
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Jonas Scheibler (DESY)Higgs Physics at Future Colliders
We present a comprehensive phenomenological study of a real inert singlet-triplet dark matter model. This model extends the Standard Model (SM) with 2 inert scalars: a gauge-singlet and a hypercharge-zero SU(2)_L-triplet. Our analysis takes into account state-of-the-art theoretical and experimental constraints. A central focus of our work lies on beyond-the-SM (BSM) two-loop corrections to key...
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Alessandro GavardiPrecision Higgs measurements
Higgs boson production in association with a bottom-quark pair offers a direct probe of the bottom-quark Yukawa coupling and is an important ingredient in both Standard Model precision studies and searches for new physics. In this talk, I will present some of the latest results on the topic, part of the bbH/bH contribution to the LHCHWG Report 5.
In the report, we present state-of-the-art...
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Birgit Stapf (CERN)Higgs Physics at Future Colliders
The FCC-hh, colliding protons at a centre-of-mass energy of 84 TeV, will produce single and double Higgs boson samples orders of magnitude larger than those available at the LHC. This unprecedented statistics will enable few-percent precision on rare decays such as H→μμ, H→γγ, and H→Zγ, a stringent test of the top Yukawa coupling through ttH production, and a direct measurement of the Higgs...
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Dr Francesco Giovanni Celiberto (UAH Madrid)
Recent studies of inclusive Higgs production at N$^3$LO have shown that high-energy resummation effects can reach the 10% level at future hadron colliders, indicating that precision Higgs and electroweak physics is increasingly sensitive to QCD dynamics beyond fixed order. Motivated by this observation, we present recent developments of the JETHAD-DYnamis framework, a high-energy resummation...
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Morgan Del GrattaPrecision Higgs measurements
The application of quantum-information-inspired observables to particle physics has attracted rapidly growing interest from both theorists and experimentalists studying spin correlations. The Higgs boson and its decay products offer an especially promising testing ground: the scalar nature of the Higgs imposes strong symmetry constraints on the spins of its decay products, yielding a state...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Higgs Potential, Di-Higgs, and Multi-Higgs
The observation and measurement of Higgs boson pair production provide direct access to the Higgs self-coupling and represent a major milestone in the exploration of the Higgs sector. This talk reviews the latest ATLAS results on di-Higgs production, including recent measurements and searches using Run 2 and Run 3 data.
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Patrick Hurley (University of Sussex)Precision Higgs measurements
The anticipated precision of Higgs-sector studies at the HL-LHC calls for a theoretical description of $t \bar t$-associated Higgs production in terms of exact matrix elements for the full $2\to7$ process $pp \to b\bar{b}\,e^{+}\nu_{e}\,\mu^{-}\bar{\nu}_{\mu} + H$. Computed with massive $b$ quarks, including the off-shell production and chain decays of the $t\bar{t}H$ and $tWH$ intermediate...
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Samuel Oliver Crossley (University of California Los Angeles (US))Higgs Potential, Di-Higgs, and Multi-Higgs
A search for non-resonant Higgs boson pair production in the $\mathrm{b\bar b WW^*}$ final state is presented, targeting the semi-leptonic channel in which one $\mathrm{W}$ boson decays leptonically into an electron or muon and a neutrino, while the other $\mathrm{W}$ boson decays hadronically. The analysis is based on proton-proton collision data collected at $\sqrt{s} = 13.6\;\mathrm{TeV}$...
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Marco Chiusi (Chinese Academy of Sciences (CN))Higgs Potential, Di-Higgs, and Multi-Higgs
In this talk, the latest results by the CMS Collaboration on non-resonant Higgs boson pairs (HH) production in the bbtautau final state (where one Higgs boson decays into a pair of bottom quarks and the other decays into a pair of tau leptons) will be presented. The search is performed using 172 fb^-1 of proton-proton collision data at 13.6 TeV collected by the CMS experiment during the early...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
Studies of rare Higgs boson productions and decays are important for validating the Standard Model and probing potential new physics. In this talk, we will discuss the latest searches of Higgs boson rare productions and decays from the ATLAS experiment based on Run 2 and Run 3 data.
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
This contribution presents a CMS search for the rare Higgs boson decay H → Zγ → ℓ⁺ℓ⁻γ using Run 2 Ultra Legacy data and early Run 3 data collected in 2022 and 2023. With a very small Standard Model branching fraction, this decay is experimentally challenging but provides a sensitive probe of the Higgs sector and possible new physics effects.
The analysis targets the main Higgs production...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Beyond the Standard Model Higgs
Though the Standard Model (SM) of particle physics has been a very successful theory in explaining a wide range of measurements, there are still many questions left unanswered such as incorporation of gravity into SM, neutrino masses, matter-antimatter asymmetry, supersymmetry, or existence of dark matter candidates. One of the possible solutions to address these challenges is the extension of...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Beyond the Standard Model Higgs
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable of explaining some observations by itself. Many extensions of the Standard Model addressing such shortcomings introduce additional Higgs bosons, additional scalars, or...
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Hongbo Liao (Chinese Academy of Sciences (CN))Beyond the Standard Model Higgs
We present searches for additional neutral and charged Higgs bosons with the CMS detector using run 2 and run3 datasets. The presented searches also include decays of heavy Higgs bosons into other Higgs bosons (both the 125 GeV Higgs boson and other additional Higgs bosons).
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Carlos Vazquez Sierra (Universidade da Coruña (ES))Beyond the Standard Model Higgs
The LHCb detector, designed as a forward spectrometer, was originally optimized for precision studies of $B$-hadron decays. It provides excellent separation between primary vertices and secondary decay vertices, a flexible trigger system enabling the efficient collection of low-mass states, and outstanding particle-identification capabilities. As a result, the LHCb experiment offers excellent...
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Hongbo Liao (Chinese Academy of Sciences (CN))Precision Higgs measurements
The full set of data collected by CMS experiment allows searches for rare processes of the Higgs boson, subdominant with respect to the ones already observed at the LHC, by using a variety of decay modes profiting the ones with largest expected branching fractions. They include final states with a Z and a photon. Double Higgs boson production associated with a pair of top quarks is also considered.
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Mr Tiziano Bevilacqua (ETH Zürich (CH))Precision Higgs measurements
We present a detailed NLO+PS study of Higgs-boson production in association with charm and bottom quarks (H+HF), with particular focus on H+c. We compare predictions in the massive (3FS/4FS) and massless (4FS/5FS) flavour schemes, quantifying scale and flavour-scheme uncertainties and assessing the impact of interference and loop-induced contributions to the H+c cross section. NLO+PS...
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Shu Chen (University of Southampton)Beyond the Standard Model Higgs
In this work we explore the potential of the Large Hadron Collider to probe a two-component scalar Dark Matter scenario in the opposite-sign dimuon plus missing transverse energy final state, accompanied by a hard jet. In particular, the signal is characterised by a soft dimuon system with an invariant mass well below $m_Z$. We work within the framework of a 3-Higgs Doublet Model (3HDM)...
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Precision Higgs measurements
This talk will cover the quantum entanglement study between vector bosons in H->VV decay, and the measurement of polarization dependent anomalous HVV coupling in VBF production from ATLAS based on Run 2 and Run 3 data.
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Reisaburo Tanaka (IJCLab, Université Paris-Saclay (FR))Higgs Potential, Di-Higgs, and Multi-Higgs
This talk summarizes ATLAS study of four-leg coupling involving Higgs boson in ATLAS, including quartic Higgs self-coupling, HHVV, and HHtt couplings, based on Run 2 and Run 3 data.
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Sebastian Eryk Jaskiewicz (Universitaet Bern (CH))Precision Higgs measurements
Control over high-energy logarithms in predictions for LHC processes is increasingly important. In a recent ATLAS measurement [arXiv:2403.02793], state-of-the-art matched parton-shower predictions for an electroweak boson in association with at least two jets $(pp\to\{\gamma,Z,W\}+jj)$ deviate systematically from data as the partonic collision energy grows. This effect is due to the dominance...
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Ang Li (Brookhaven National Laboratory (US))Higgs Physics at Future Colliders
Precise knowledge of the Higgs boson mass opens the door to one of the most ambitious opportunities of the FCC-ee programme: resonant s-channel Higgs production at √s = mH. At √s = 240 GeV, the recoil mass of Higgsstrahlung events with leptonic Z decays determines mH from purely kinematic information, independently of the Higgs decay. Recent studies project a precision at the few-MeV level,...
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Finn Jonathan Labe (Deutsches Elektronen-Synchrotron (DE))Precision Higgs measurements
The global fit of the electroweak (EW) sector provides one of the most powerful consistency tests of the Standard Model (SM). We present an update of the global EW fit with the Gfitter framework, incorporating the latest experimental inputs, including the new world average of the W-boson mass and state-of-the-art theoretical calculations. We obtain indirect determinations of key quantities...
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Vishakha LingadahallyBeyond the Standard Model Higgs
The process of top quark pair production through the decay of the scalars in the 1 Higgs Singlet extension of the Standard Model is associated with large interference effects between the loop-induced 'SM-like' Higgs and 'Heavy' Higgs amplitudes, and the QCD continuum background. We attach leptonic decays to the di-top final state at NLO and study the effects of spin correlation in the process....
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Felix Egle (DESY)Higgs Potential, Di-Higgs, and Multi-Higgs
The precise determination of the Higgs self-couplings is an essential task for understanding electroweak symmetry breaking and probing physics beyond the Standard Model (BSM). The calculation of two-loop corrections is important to provide a critical test of the perturbative stability, especially in scenarios where large one-loop corrections can occur due to radiative corrections from extended...
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Barbara Anna Erdelyi (Università degli Studi di Padova and INFN Sezione di Padova)Beyond the Standard Model Higgs
Significant progress has been made in the theoretical and experimental characterisation of the Higgs boson since its discovery at LHC in 2012. However, the couplings of this particle to the lighter fermions of the Standard Model (1st and 2nd generation quarks and the electron) are still beyond current experimental reach. Indeed, the combination of their smallness and, for the quarks, the...
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