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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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Computing Pinched Feynman Integrals and the Method of Regions
/ Jones, Stephen Philip (speaker) (University of Durham (GB))
Sector decomposition is a well known method for numerically computing Feynman integrals. In the physical (Minkowski) region, it is sometimes necessary to deform the integration contour into the complex plane in order to avoid poles, or more generally singular hypersurfaces, in the integration domain. [...]
2023 - 1956.
Conferences, Workshops & Schools; QCD Meets Gravity 2023
External links: Talk details; Event details
In : QCD Meets Gravity 2023
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$ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence
/ Chen, Long (Munich, Max Planck Inst. ; Aachen, Tech. Hochsch.) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Jones, Stephen P. (CERN ; Durham U., IPPP) ; Kerner, Matthias (Zurich U.) ; Klappert, Jonas (RWTH Aachen U.) ; Schlenk, Johannes (PSI, Villigen)
We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a $Z$-boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. [...]
arXiv:2011.12325; ZU-TH 45/20; CERN-TH-2020-199; IPPP/20/57; P3H-20-076,
KA-TP-21-2020; P3H-20-076, KA-TP-21-2020; TTK-20-42; PSI-PR-20-21; PSI-PR-20-21 P3H-20-076\\ KA-TP-21-2020\\ TTK-20-42\\ PSI-PR-20-21.-
2021-03-11 - 26 p.
- Published in : JHEP 2103 (2021) 125
Article from SCOAP3: PDF; Fulltext: PDF;
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A non-linear EFT description of $gg\to HH$ at NLO interfaced to POWHEG
/ Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Scyboz, Ludovic (Oxford U., Theor. Phys.)
We present the implementation of Higgs boson pair production in gluon fusion within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. The code, available within the POWHEG-BOX-V2, includes full NLO QCD corrections with massive top quarks. [...]
arXiv:2006.16877; CERN-TH-2020-106; KA-TP-04-2020; OUTP-20-06P; P3H-20-026,
ZU-TH-21/20; P3H-20-026, ZU-TH-21/20.-
2020-10-05 - 17 p.
- Published in : JHEP 2020 (2020) 021
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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Photon pair production in gluon fusion: Top quark effects around threshold
/ Chen, Long (Munich, Max Planck Inst.) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Jahn, Stephan (Munich, Max Planck Inst.) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Schlenk, Johannes (PSI, Villigen) ; Yokoya, Hiroshi (Korea Inst. Advanced Study, Seoul)
We present a calculation of the NLO QCD corrections to the loop-induced production of a photon pair through gluon fusion, including massive top quarks at two loops. The two-loop virtual amplitudes are computed via projecting onto a set of Lorentz structures related to linear polarisation states of external gauge bosons. [...]
arXiv:1912.05943; MPP-2019-254.-
SISSA, 2019-12-12 - 11 p.
- Published in : PoS RADCOR2019 (2019) 026
Fulltext: PoS(RADCOR2019)026 - PDF; 1912.05943 - PDF;
In : 14th International Symposium on Radiative Corrections : Application of Quantum Field Theory to Phenomenology, Avignon, France, 8 - 13 Sep 2019, pp.026
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Photon pair production in gluon fusion: Top quark effects at NLO with threshold matching
/ Chen, Long (Munich, Max Planck Inst.) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Jahn, Stephan (Munich, Max Planck Inst.) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Schlenk, Johannes (PSI, Villigen) ; Yokoya, Hiroshi (Korea Inst. Advanced Study, Seoul)
We present a calculation of the NLO QCD corrections to the loop-induced production of a photon pair through gluon fusion, including massive top quarks at two loops, where the two-loop integrals are calculated numerically. Matching the fixed-order NLO results to a threshold expansion, we obtain accurate results around the top quark pair production threshold. [...]
arXiv:1911.09314; CERN-TH-2019-195; MPP-2019-236; PSI-PR-19-24; ZU-TH 48/19.-
2020-04-20 - 26 p.
- Published in : JHEP 2004 (2020) 115
Article from SCOAP3: PDF; Fulltext: PDF;
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Numerical Multiloop Calculations: Sector Decomposition and QMC Integration in pySecDec
/ Borowka, S (CERN) ; Heinrich, G (Munich, Max Planck Inst.) ; Jahn, S (Munich, Max Planck Inst.) ; Jones, Stephen Philip (CERN) ; Kerner, M (Zurich U.) ; Schlenk, J (Durham U., IPPP)
The FCC-ee will allow the experimental uncertainties on several important observables, such as the Electroweak Pseudo-Observables (EWPOs), to be reduced by up to two orders of magnitude compared to the previous generation LEP/SLC experiments [1, 2]. In order to be able to best exploit this unprecedented boost in precision, it is necessary also for theoretical predictions to be known with sufficient accuracy. [...]
2019 - 10 p.
- Published in : 10.23731/CYRM-2020-003.185
Fulltext: Preprint - PDF; Publication - PDF;
In : Theory for the FCC-ee : Report on the 11th FCC-ee Workshop Theory and Experiments, pp.185-192
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Double Higgs boson production at NLO: combining the exact numerical result and high-energy expansion
/ Davies, Joshua (KIT, Karlsruhe, TTP) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Mishima, Go (KIT, Karlsruhe, TTP ; KIT, Karlsruhe, IKP) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP) ; Wellmann, David (KIT, Karlsruhe, TTP)
We consider the next-to-leading order QCD corrections to Higgs boson pair production, using our recent calculation of the form factors in the high-energy limit. We compute the virtual corrections to the partonic cross section, applying Pad\'e approximations to extend the range of validity of the high-energy expansion. [...]
arXiv:1907.06408; CERN-TH-2019-103; MPP-2019-128; P3H-19-015; TTP19-018; ZU-TH 34/19.-
2019-11-05 - 21 p.
- Published in : JHEP 1911 (2019) 024
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from publisher: PDF;
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