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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Detaljerad journal
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2025-09-19
13:22 |
State-of-the-art electroweak Higgs-pair production in association with two jets at the LHC in the Standard Model and beyond
/ Braun, Jens (Institute for Theoretical Physics, Karlsruhe Institute of Technology (KIT),) ; Heinrich, Gudrun Marlen (KIT - Karlsruhe Institute of Technology (DE)) ; Höfer, Marius (Institute for Theoretical Physics, Karlsruhe Institute of Technology (KIT),) ; Jäger, Barbara (Institute for Theoretical Physics, University of Tübingen) ; Karlberg, Alexander (CERN) ; Reinhardt, Simon (Institute for Theoretical Physics, University of Tübingen)
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.-
Geneva : CERN, 2025 - 20.
v2 following comments 20/10/2025: PDF;
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Detaljerad journal
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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.) ; 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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Detaljerad journal
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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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Detaljerad journal
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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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Detaljerad journal
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2025-07-25
16:16 |
Detaljerad journal
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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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Detaljerad journal
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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 - 26 p.
Fulltext: LHCHWG-2025-006 - PDF; 2508.00466 - PDF; Second update of the contribution: PDF; Updated contribution: PDF;
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Detaljerad journal
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2025-07-08
08:52 |
Parametrisation and dictionary for CP violating Higgs boson interactions
/ Barducci, Daniele (Dipartimento di Fisica “Enrico Fermi”, Universitá di Pisa and INFN Sezione di Pisa, Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy) ; Forslund, Matthew (C. N. Yang Institute for Theoretical Physics, Stony Brook University, Stony Brook, NY, 11794, USA and High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA) ; Fuentes Zamoro, Marta (Departamento de Física Teórica and Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain) ; Gritsan, Andrei V. (Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA) ; Ortona, Giacomo (Istituto Nazionale di Fisica Nucleare, Sezione di Torino, via P. Giuria 1, I–10125 Torino, Italy)
Searches for charge-parity (CP) violating interactions of the Standard Model (SM) Higgs boson are a key priority of the LHC physics program. Experimental results from ATLAS and CMS are often reinterpreted within a variety of theoretical parametrisations, the most commonly used being the Higgs basis, $\kappa$'s and angles, CP fractions and effective field theories (EFT) such as the SMEFT and the Higgs EFT. [...]
LHCHWG-2025-004.-
Geneva : CERN, 2025 - 19.
Fulltext: PDF;
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Detaljerad journal
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2025-06-30
11:56 |
Higgs production via vector-boson fusion at the LHC
/ Barone, Gaetano (Brown U.) ; Chen, Jiayi (Simon Fraser U.) ; Cooperstein, Stephane (UC, San Diego) ; Dolganov, Nikita (Simon Fraser U.) ; Ferrario Ravasio, Silvia (CERN) ; Haddad, Yacine (Northeastern U.) ; Höche, Stefan (Fermilab) ; Jäger, Barbara (Tubingen U.) ; Karlberg, Alexander (CERN) ; Mück, Alexander (RWTH Aachen U.) et al.
In this article, we summarise the recent experimental measurements and theoretical work on Higgs boson production via vector-boson fusion at the LHC. Along with this, we provide state-of-the-art predictions at fixed order as well as with parton-shower corrections within the Standard Model at 13.6 TeV. [...]
arXiv:2507.22574; LHCHWG-2025-003; CERN-TH-2025-126; FERMILAB-PUB-25-0410-T; FR-PHENO-25-08; MCNET-25-16; TIF-UNIMI-2025-14; TTK-25-19.-
Geneva : CERN, 2025 - 45 p.
- Published in : Public Code Repository
- Published in : Public Data Repository
Fulltext: LHCHWG-2025-003 - PDF; 353eb4a019405910bebb1823c2e35e36 - PDF; 2507.22574 - PDF; External link: Fermilab Library Server
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