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;
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2025-07-25
16:16 |
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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;
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2025-07-11
23:12 |
Rare few-body decays of the Standard Model Higgs boson
/ D'Enterria Adan, David (CERN) ; Le, Van Dung (Vietnam National University (VN))
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 [...]
LHCHWG-2025-006.-
Geneva : CERN, 2025 - 26.
Fulltext: PDF; Second update of the contribution: PDF; Updated contribution: PDF;
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2025-07-11
16:58 |
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2025-07-08
08:52 |
Parametrisation and dictionary for CP violating Higgs interactions
/ Barducci, Daniele (Universita & INFN Pisa (IT)) ; Giardino, Pier Paolo (CERN) ; Forslund, Matthew (C. N. Yang Institute for Theoretical Physics, Stony Brook University, Stony Brook, NY, 11794, USA 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)
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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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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2025-05-16
03:13 |
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2025-02-14
15:03 |
State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections
/ Balsach, Roger (Institute for Theoretical Physics, University of Munster, D-48149 Munster, Germany) ; Broggio, Alessandro (Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria) ; Devoto, Simone (Department of Physics and Astronomy, Ghent University, 9000 Ghent, Belgium) ; Ferroglia, Andrea (Physics Department, New York City College of Technology, The City University of New York, 300 Jay Street, Brooklyn, NY 11201, USA & The Graduate School and University Center, The City University of New York, 365 Fifth Avenue, New York, NY 10016, USA) ; Frederix, Rikkert (Department of Physics, Lund University, SE-223 63 Lund, Sweden) ; Grazzini, Massimiliano (University of Zurich (CH)) ; Kallweit, Stefan (University of Zurich (CH)) ; Kulesza, Anna (Institute for Theoretical Physics, University of Munster, D-48149 Munster, Germany) ; Mazzitelli, Javier (Paul Scherrer Institut, 5232 Villigen PSI, Switzerland) ; Motyka, Leszek (Institute of Theoretical Physics, Jagellonian University,S.Lojasiewicza11,30-348Krakow,Poland) et al.
We present new, state-of-the-art predictions for the associated production of the SM Higgs boson with top quarks, computed in accordance with the recommendations of the LHC Higgs Working Group. The NNLO QCD predictions, derived through suitable approximations of the two-loop virtual contribution, are supplemented with soft-gluon resummation up to NNLL accuracy. [...]
LHCHWG-2025-001.-
Geneva : CERN, 2025
- Published in : arXiv:2503.15043
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2024-01-10
14:49 |
Ad interim recommendations for the Higgs boson production cross sections at $\sqrt{s} = 13.6$ TeV
/ Karlberg, Alexander (CERN) ; Malcles, Julie (Université Paris-Saclay (FR)) ; Mistlberger, Bernhard (SLAC National Accelerator Laboratory (US)) ; Di Nardo, Roberto (Universita e INFN Roma Tre (IT)) ; Jones, Stephen Philip (University of Durham (GB)) ; Abidi, Haider (Brookhaven National Laboratory (US)) ; Ferrario Ravasio, Silvia (CERN) ; Pellen, Mathieu (Albert Ludwigs Universitaet Freiburg (DE)) ; Barone, Gaetano (Brown University (US)) ; Cooperstein, Stephane Brunet (Univ. of California San Diego (US)) et al.
This note documents predictions for the production cross sections of the Standard Model Higgs boson at the Large Hadron Collider at a centre of mass energy of 13.6 TeV. The predictions here are based on simple extrapolations of previously documented predictions published in the CERN Yellow Report ”Deciphering the Nature of the Higgs Sector”. [...]
arXiv:2402.09955; LHCHWG-2024-001.-
Geneva : CERN, 2024 - 13 p.
Fulltext: PDF; Updated PDF following discussions before final approval: PDF;
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