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Accurate simulation of W, Z and Higgs boson decays in Sherpa
/ Krauss, Frank (Durham U., IPPP) ; Lindert, Jonas M. (Durham U., IPPP) ; Linten, Robin (Durham U., IPPP) ; Schönherr, Marek (CERN)
We discuss the inclusion of next-to-next-to leading order electromagnetic and of next-to leading order electroweak corrections to the leptonic decays of weak gauge and Higgs bosons in the SHERPA event generator. To this end, we modify the Yennie-Frautschi-Suura scheme for the resummation of soft photon corrections and its systematic improvement with fixed-order calculations, to also include the effect of virtual corrections due to the exchange of weak gauge bosons. [...]
arXiv:1809.10650; IPPP-18-88; CERN-TH-2018-212; MCnet-18-26; IPPP--18--88,CERN-TH-2018-212,MCnet-18-26.-
2019-02-19 - 35 p.
- Published in : Eur. Phys. J. C 79 (2019) 143
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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Scale and isolation sensitivity of diphoton distributions at the LHC
/ Gehrmann, Thomas (Zurich U.) ; Glover, Nigel (Durham U., IPPP) ; Huss, Alexander (Durham U., IPPP ; CERN) ; Whitehead, James (Durham U., IPPP)
Precision measurements of diphoton distributions at the LHC display some tension with theory predictions, obtained at next-to-next-to-leading order (NNLO) in QCD. We revisit the theoretical uncertainties arising from the approximation of the experimental photon isolation by smooth-cone isolation, and from the choice of functional form for the renormalisation and factorisation scales. [...]
arXiv:2009.11310; IPPP/20/42; ZU-TH 17/20; CERN-TH-2020-160; CERN-TH-2020-160.-
2021-01-19 - 35 p.
- Published in : JHEP 2101 (2021) 108
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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A comparative study of Higgs boson production from vector-boson fusion
/ Buckley, A. (Glasgow U.) ; Chen, X. (Zurich U. ; KIT, Karlsruhe, TP ; KIT, Karlsruhe, SCC) ; Cruz-Martinez, J. (INFN, Milan ; Milan U.) ; Ferrario Ravasio, S. (Oxford U., Ctr. Quantum Comp. ; Durham U., IPPP) ; Gehrmann, T. (Zurich U.) ; Glover, E.W. N. (Durham U., IPPP) ; Höche, S. (Fermilab) ; Huss, A. (CERN) ; Huston, J. (Michigan State U.) ; Lindert, J.M. (Sussex U.) et al.
The data taken in Run II at the LHC have started to probe Higgs boson production at high transverse momentum. Future data will provide a large sample of events with boosted Higgs boson topologies, allowing for a detailed understanding of electroweak Higgs boson plus two-jet production, and in particular the vector-boson fusion mode (VBF). [...]
arXiv:2105.11399; FERMILAB-PUB-21-218-T; IPPP/20/101; MCNET-21-08; KA-TP-08-2021; KA-TP-08-2021,
OUTP-21-14P; ZU-TH 22/21; CERN-TH-2021-081; OUTP-21-14P.-
2021-11-15 - 31 p.
- Published in : JHEP 2111 (2021) 108
Fulltext: 2105.11399 - PDF; Publication - PDF; fermilab-pub-21-218-t - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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Phenomenology of NNLO jet production at the LHC and its impact on parton distributions
/ Abdul Khalek, Rabah (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Gehrmann, Thomas (Zurich U.) ; Gehrmann-De Ridder, Aude (Zurich U. ; Zurich, ETH) ; Giani, Tommaso (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Glover, Nigel (Durham U., IPPP) ; Huss, Alexander (Durham U., IPPP ; CERN) ; Nocera, Emanuele R. (Nikhef, Amsterdam) ; Pires, Joao (CMAF, Lisbon) ; Rojo, Juan (Vrije U., Amsterdam ; Nikhef, Amsterdam) et al.
We present a systematic investigation of jet production at hadron colliders from a phenomenological point of view, with the dual aim of providing a validation of theoretical calculations and guidance to future determinations of parton distributions (PDFs). We account for all available inclusive jet and dijet production measurements from ATLAS and CMS at 7 and 8 TeV by including them in a global PDF determination, and comparing to theoretical predictions at NNLO QCD supplemented by electroweak (EW) corrections. [...]
arXiv:2005.11327; CERN-TH-2020-073; IPPP/20/17; Nikhef/2020-001; TIF-UNIMI-2020-3; ZU-TH 15/20; TIF-UNIMI-2020-3,
ZU-TH 15/20.-
2020-08-31 - 34 p.
- Published in : Eur. Phys. J. C 80 (2020) 797
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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Bottom-quark effects in Higgs production at intermediate transverse momentum
/ Caola, Fabrizio (Durham U., IPPP) ; Lindert, Jonas M. (Durham U., IPPP) ; Melnikov, Kirill (KIT, Karlsruhe, TTP) ; Monni, Pier Francesco (CERN) ; Tancredi, Lorenzo (CERN) ; Wever, Christopher (KIT, Karlsruhe, TTP ; KIT, Karlsruhe, IKP)
We provide a precise description of the Higgs boson transverse momentum distribution including top and bottom quark contributions, that is valid for transverse momenta in the range mb < pt < mt, where mb and mt are the bottom and top quark masses. This description is based on a combination of fixed next-to-leading order (NLO) results with next-to-next-to-leading logarithmic (NNLL) transverse momentum resummation. [...]
arXiv:1804.07632; IPPP-18-27; IPPP/18/27; CERN-TH-2018-089; TTP-18-016.-
2018-09-07 - 28 p.
- Published in : JHEP 1809 (2018) 035
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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