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1.
High energy lepton colliders as the ultimate Higgs microscopes / Banerjee, Shankha (CERN) ; Gupta, Rick S. (Durham U., IPPP) ; Ochoa-Valeriano, Oscar (Durham U., IPPP) ; Spannowsky, Michael (Durham U., IPPP)
We study standard electroweak/Higgs processes at the high-energy lepton colliders ILC and CLIC. We identify a subset of three operators in the SMEFT that give leading contributions to these processes at high energies. [...]
arXiv:2109.14634; CERN-TH-2021-142; IPPP/21/35.- 2022-02-21 - 25 p. - Published in : JHEP 02 (2022) 176 Fulltext: document - PDF; 2109.14634 - PDF;
2.
A fully differential SMEFT analysis of the golden channel using the method of moments / Banerjee, Shankha (CERN) ; Gupta, Rick S. (Durham U., IPPP) ; Ochoa-Valeriano, Oscar (Durham U., IPPP) ; Spannowsky, Michael (Durham U., IPPP) ; Venturini, Elena (Munich, Tech. U.)
The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel $h \to 4\ell$ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. [...]
arXiv:2012.11631; CERN-TH-2020-220; TUM-HEP-1309/20; IPPP/20/68.- 2021-06-04 - 32 p. - Published in : JHEP 2106 (2021) 031 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
3.
Precision SMEFT bounds from the VBF Higgs at high transverse momentum / Araz, Jack Y. (Durham U., IPPP) ; Banerjee, Shankha (CERN) ; Gupta, Rick S. (Durham U., IPPP) ; Spannowsky, Michael (Durham U., IPPP)
We study the production of Higgs bosons at high transverse momenta via vector-boson fusion (VBF) in the Standard Model Effective Field Theory (SMEFT). We find that contributions from four independent operator combinations dominate in this limit. [...]
arXiv:2011.03555; IPPP/20/52; CERN-TH-2020-186.- 2021-04-14 - 27 p. - Published in : JHEP 2104 (2021) 125 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
4.
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;
5.
Initial State Radiation in the Herwig 7 Angular-Ordered Parton Shower / Bewick, Gavin (Durham U., IPPP) ; Ferrario Ravasio, Silvia  (Durham U., IPPP ; Oxford U., Theor. Phys.) ; Richardson, Peter (Durham U., IPPP ; CERN) ; Seymour, Michael H. (Manchester U.)
We study the simulation of initial-state radiation in angular-ordered parton showers in order to investigate how different interpretations of the ordering variable affect the logarithmic accuracy of such showers. This also enables us to implement a recoil scheme which is consistent between final-state and initial-state radiation. [...]
arXiv:2107.04051; CERN-TH-2021-103; OUTP-21-18P; MCnet-21-13; IPPP/21/05.- 2022-01-07 - 27 p. - Published in : JHEP 01 (2022) 026 Fulltext: document - PDF; 2107.04051 - PDF;
6.
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;
7.
$hh+\text{jet}$ production at 100 TeV / Banerjee, Shankha (Durham U., IPPP ; Annecy, LAPTH) ; Englert, Christoph (Glasgow U.) ; Mangano, Michelangelo L. (CERN) ; Selvaggi, Michele (CERN) ; Spannowsky, Michael (Durham U., IPPP)
Higgs pair production is a crucial phenomenological process in deciphering the nature of the TeV scale and the mechanism underlying electroweak symmetry breaking. At the Large Hadron Collider, this process is statistically limited. [...]
arXiv:1802.01607; IPPP/18/10; LAPTH-034/18; CERN-TH-2018-023; IPPP-18-10; LAPTH-034-18; LAPTH-003-18.- 2018-04-21 - 21 p. - Published in : Eur. Phys. J. C 78 (2018) 322 Article from SCOAP3: PDF; Fulltext: PDF;
8.
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
9.
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;
10.
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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