2025-12-23
14:15 |
Constraining the Higgs potential using multi-Higgs production
/ Ding, Jia-Le (School of Physics, Shandong University, Jinan, Shandong 250100, China) ; Gillis, Zach (Department of Physics and Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA) ; Haisch, Ulrich (Max Planck Institute for Physics, Boltzmannstr.8, 85748 Garching, Germany) ; Moser, Brian (University of Freiburg (DE)) ; Li, Hao Tao (School of Physics, Shandong University, Jinan, Shandong 250100, China) ; Pagani, Davide (INFN, Sezione di Bologna, Via Irnerio 46, Bologna, I-40126, Italy) ; Rottoli, Luca (Universita & INFN, Milano-Bicocca (IT)) ; Shivaji, Ambresh (Indian Institute of Science Education and Research, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO 140306, Punjab, India) ; Si, Zong-Guo (School of Physics, Shandong University, Jinan, Shandong 250100, China) ; Wang, Jian (School of Physics, Shandong University, Jinan, Shandong 250100, China) et al.
The Higgs self-couplings remain only weakly constrained by current Large Hadron Collider (LHC) measurements, leaving ample room for physics beyond the Standard Model that could modify the structure of the Higgs potential. Multi-Higgs production processes provide a particularly sensitive probe of deviations in both the trilinear and quartic Higgs self-couplings. [...]
LHCHWG-2025-015.-
Geneva : CERN, 2025 - 19.
Fulltext: PDF;
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2025-11-14
12:27 |
Charged Higgs Pairs at the LHC: A NLO Analysis
/ Spira, Michael (Paul Scherrer Institute (CH)) ; Biermann, Lisa (Paul Scherrer Institute) ; Ita, Harald (Paul Scherrer Institute, UZH) ; Yedelkina, Yelizaveta (Paul Scherrer Institute) ; Rusetski, Irina (Paul Scherrer Institute, Bern University) ; Ahmed, Mohamed (Paul Scherrer Institute)
Charged Higgs-boson pair production at hadron colliders yields information about the trilinear couplings involving charged Higgs fields in extensions of the Standard Model (SM). We consider the two-Higgs doublet model (2HDM) extension and obtain next-to-leading order QCD predictions for the charged-Higgs pair production ($H^+H^-$ production). [...]
LHCHWG-2025-014.-
Geneva : CERN, 2025 - 27.
Charged Higgs Pairs at the LHC: A NLO Analysis: PDF;
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2025-10-22
15:57 |
Impact of Higgs-Boson measurements on SMEFT Fits
/ De Blas Mateo, Jorge (Universidad de Granada (ES)) ; Goncalves, Angelica (Florida State University (USA)) ; Miralles, Victor (University of Manchester (UK)) ; Reina, Laura (Florida State University (USA)) ; Silvestrini, Luca (Sapienza Universita e INFN, Roma I (IT)) ; Valli, Mauro (Sapienza Universita and INFN, Roma I (IT))
We present current bounds on SMEFT operators that are mainly constrained by Higgs-boson observables, under different assumptions for the flavour structure of the UV theory. We investigate how the accuracy reached through a dedicated Higgs-boson precision physics program is starting to have a major impact in setting a lower bound on the scale of new physics, and we discuss the relevance of considering the scale evolution of the SMEFT coefficients in this context. [...]
LHCHWG-2025-013.-
Geneva : CERN, 2025 - 11.
Contribution to Report 5 of the LHC Higgs WG: PDF;
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2025-09-19
13:22 |
State-of-the-art electroweak Higgs boson pair production in association with two jets at the LHC in the Standard Model and beyond
/ Braun, Jens (KIT, Karlsruhe, TP) ; Bredt, Pia (Siegen U.) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Höfer, Marius (KIT, Karlsruhe, TP) ; Jäger, Barbara (Tubingen U.) ; Karlberg, Alexander (CERN) ; Reinhardt, Simon (Tubingen U.)
We present a systematic comparison of two state-of-the-art tools for the simulation of Higgs-pair production via vector boson fusion (VBF) as implemented in GoSam+Whizard and the POWHEG-BOX. Cross sections and distributions are provided within the Standard Model and beyond within scenarios typical for experimental analyses and for a range of energies of relevance to the LHC and its upcoming high luminosity phase. [...]
LHCHWG-2025-012; CERN-TH-2025-170; KA-TP-27-2025; P3H-25-062; SI-HEP-2025-18; arXiv:2511.02488.-
Geneva : CERN, 2025-09-19 - 21 p.
Fulltext: PDF; v2 following comments 20/10/2025: PDF;
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2025-09-09
12:15 |
Modelling $b\bar{b}H$ production for the LHC at 13.6 TeV
/ Biello, Christian (Garching, Max Planck Inst., MPE) ; Gavardi, Alessandro (DESY) ; von Kuk, Rebecca (DESY) ; Lim, Matthew A. (Sussex U. ; Milan Bicocca U. (main) ; INFN, Milan Bicocca) ; Manzoni, Stefano (CERN) ; Mazzeo, Elena (CERN) ; Mazzitelli, Javier (PSI, Villigen) ; Sankar, Aparna (Garching, Max Planck Inst., MPE ; Munich, Tech. U.) ; Spira, Michael (PSI, Villigen) ; Tackmann, Frank J. (DESY) et al.
We present new state-of-the-art predictions for Standard Model Higgs boson production in association with a bottom-quark pair ($b\bar bH$). Updated cross sections are computed in accordance with the recommendations of the LHC Higgs Working Group, including the use of the PDF4LHC21 set of parton distribution functions, with a center-of-mass energy of 13.6 TeV. [...]
LHCHWG-2025-11; MPP-2025-116; DESY-25-093; TIF-UNIMI-2025-15; arXiv:2510.18815.-
Geneva : CERN, 2025-09-08 - 47 p.
Fulltext: PDF; bbH contribution to Report 5: PDF;
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2025-08-26
00:32 |
The inclusive Higgs boson cross-section in gluon-gluon fusion in soft-virtual approximation at fourth order in QCD
/ Das, Goutam (RWTH Aachen University) ; Moch, Sven-Olaf (Hamburg University (DE))
We present precise results for the inclusive Higgs boson cross-section in gluon-gluon fusion at the LHC considering state-of-the-art fourth-order results in perturbative QCD arising from the dominant soft and virtual gluon emissions. Utilizing four-loop QCD results for the gluon-form factor, the splitting function and related anomalous dimen- sions, we study the effects of threshold enhanced soft gluon emissions and estimate their impact on the total cross-section at the fourth order. [...]
LHCHWG-2025-010.-
Geneva : CERN, 2025 - 8.
Fulltext: PDF;
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2025-07-29
13:59 |
Threshold improved $ZH$ production at the LHC
/ Samanta, Kajal (Institute for Particle Physics Phenomenology, Durham University, Durham DH1 3LE, United Kingdom) ; Das, Goutam (Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany) ; Dey, Chinmoy (Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India and Theoretical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380009, India) ; Kumar, M C (Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India)
We present precise theoretical results for the $ZH$ production cross section and invariant mass distribution at the Large Hadron Collider (LHC) taking into account the effects of soft gluons. We improve both quark-initiated and gluon-initiated subprocesses through threshold resummation within the QCD framework and present combined results relevant for 13.6 TeV LHC [...]
LHCHWG-2025-009.-
Geneva : CERN, 2025 - 8.
Resummation in ZH process for YR5 from LHCHWG1-VH subgroup: PDF; Updated version after addressing CDS comments: : PDF;
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2025-07-25
16:16 |
Detaljnije
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2025-07-22
05:41 |
$g g \to Z H$ : updated predictions at NLO QCD
/ Vitti, Marco (Institute for Theoretical Particle Physics, KIT, 76131 Karlsruhe, Germany) ; Campillo Aveleira, Benjamin (Institute for Theoretical Physics, KIT, 76131 Karlsruhe, Germany) ; Chen, Long (School of Physics, Shandong University, Jinan, 250100 Shandong, China) ; Davies, Joshua (Department of Mathematical Sciences, University of Liverpool, Liverpool, UK) ; Degrassi, Giuseppe (Dipartimento di Matematica e Fisica, Università di Roma Tre, and INFN, Sezione di Roma Tre, Rome, Italy) ; Giardino, Pier Paolo (Departamento de Física Teórica and Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain) ; Groeber, Ramona (Universita e INFN, Padova (IT)) ; Heinrich, Gudrun Marlen (KIT - Karlsruhe Institute of Technology (DE)) ; Jones, Stephen Philip (University of Durham (GB)) ; Kerner, Matthias (Institute for Theoretical Physics, KIT, 76131 Karlsruhe, Germany) et al.
We present state-of-the-art predictions for the inclusive cross section of gluon-initiated $ZH$ production, following the recommendations of the LHC Higgs Working Group. In particular, we include NLO QCD corrections, where the virtual corrections are obtained from the combination of a forward expansion and a high-energy expansion, and the real corrections are exact. [...]
LHCHWG-2025-007.-
Geneva : CERN, 2025 - 14.
Fulltext: PDF; Updated version after addressing CDS comments: PDF;
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2025-07-11
23:12 |
Rare few-body decays of the Standard Model Higgs boson
/ d'Enterria, David (CERN) ; Le, Van Dung (Ho Chi Minh City U.)
We present a survey of rare and exclusive few-body decays of the standard model (SM) Higgs boson, defined as those into two to four final particles with branching fractions $\mathcal{B}\lesssim 10^{-5}$. Studies of such decays can be exploited to constrain Yukawa couplings of quarks and leptons, probe flavour-changing Higgs decays, estimate backgrounds for exotic Higgs decays into beyond-SM particles, and/or confirm quantum chromodynamics factorization with small nonperturbative corrections [...]
arXiv:2508.00466.-
Geneva : CERN, 2025 - 27 p.
Fulltext: LHCHWG-2025-006 - PDF; 2508.00466 - PDF; Second update of the contribution: PDF; Updated contribution: PDF;
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