Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

descriptionPublicationkeyboard_double_arrow_right Article , Research , Preprint , Other literature type 01 Mar 2021Embargo end date: 01 Jan 2020 France, Turkey, Germany, Spain, Croatia, Croatia, Turkey, United Kingdom, Germany, Turkey, Turkey, Turkey, Belgium, Spain, Hungary, France, Turkey, Poland, Germany, Belarus, Italy, United States, Greece, United States, Turkey, France, Belgium, Spain, France, United Kingdom, Brazil, Belgium, Germany English Publisher:Springer Science and Business Media LLCJournal:Journal of High Energy Physics, volume 2,021 (eissn: 1029-8479,

Copyright policy )Publicly fundedFunded by:EC | HIGCC, EC | LHCTOPVLQ, EC | AMVA4NewPhysics +1 projects

Authors: Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; +193 Authors

Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.; Fruehwirth, R.; Ghete, V. M.; Hrubec, J.; Jeitler, M.; Krammer, N.; Kraetschmer, I.; Liko, D.; Madlener, T.; Mikulec, I.; Rad; N.; Rohringer, H.; Schieck, J.; Schoefbeck, R.; Spanring, M.; Spitzbart, D.; Taurok, A.; Waltenberger, W.; Wittmann, J.; Wulz, C. -E.; Zarucki, M.; Chekhovsky, V.; Mossolov, V.; Gonzalez, J. Suarez; De Wolf, E. A.; Di Croce, D.; Janssen, X.; Lauwers, J.; Pieters, M.; Van de Klundert, M.; Janssen, X.; Lauwers, J.; Pieters, M.; Van de Klundert, M.; Van; Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Abu Zeid; S.; Blekman, F.; D'Hondt, J.; De Bruyn, I.; De Clercq, J.; Deroover, K.; Flouris, G.; Lontkovskyi, D.; Lowette, S.; Marchesini, I.; Moortgat, S.; Moreels, L.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Beghin, D.; Bilin, B.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Kalsi, A. K.; Lenzi, T.; Luetic, J.; Postiau, N.; Starling; E.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Wang, Q.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Roskas, C.; Trocino, D.; Tytgat, M.; Verbeke, W.; Vermassen, B.; Vit, M.; Zaganidis; N.; Bakhshiansohi, H.; Bondu, O.; Brochet, S.; Bruno, G.; Caputo, C.; David, P.; Delaere, C.; Delcourt, M.; Francois; B.; Giammanco, A.; Krintiras, G.; Lemaitre, V.; Magitteri; A.; Mertens, A.; Musich, M.; Piotrzkowski, K.; Saggio, A.; Marono, M. Vidal; Wertz, S.; Zobec, J.; Alves, F. L.; Alves, G. A.; Martins Junior, M. Correa; Correia Silva, G.; Hensel, C.; Moraes, A.; Pol, M. E.; Rebello Teles, P.; Belchior Batista Das Chagas, E.; Carvalho, W.; Chinellato, J.; Coelho, E.; Da Costa, E. M.; Da Silveira, G. G.; De Jesus; Damiao, D.; De Oliveira Martins, C.; Fonseca De Souza, S.; Malbouisson, H.; Matos Figueiredo, D.; Melo De Almeida, M.; Mora Herrera, C.; Mundim, L.; Nogima, H.; Prado Da Silva, W. L.; Sanchez Rosas, L. J.; Santoro, A.; Sznajder, A.; Thiel, M.; Tonelli Manganote, E. J.; Torres Da Silva De Araujo, F.; Vilela Pereira, A.; Ahuja, S.; Bernardes, C. A.; Calligaris, L.; Fernandez Perez Tomei, T. R.; Gregores, E. M.; Mercadante, P.; G.; Novaes, S. F.; Padula, Sandra S.; Romero Abad, D.; Aleksandrov, A.; Hadjiiska, R.; Iaydjiev, P.; Marinov, A.; Misheva, M.; Rodozov, M.; Shopova, M.; Sultanov, G.; Dimitrov, A.; Litov, L.; Pavlov, B.; Petkov, P.; Fang, W.; Gao, X.; Yuan, L.; Ahmad, M.; Bian, J. G.; Chen, G. M.; Chen, H. S.; Chen, M.; Chen, Y.; Jiang, C. H.; Leggat; D.; Liao, H.; Liu, Z.; Romeo, F.; Shaheen, S. M.; Spiezia, A.; Tao, J.; Wang, C.; Wang, Z.;

doi: 10.1007/jhep03(2021)257 , 10.18154/rwth-2021-04776 , 10.48550/arxiv.2011.12373 , 10.18154/rwth-2021-04881 , 10.3204/pubdb-2021-02221 , 10.3204/pubdb-2020-04654 , 10.5445/ir/1000133480

arXiv: 2011.12373

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

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Abstract

Abstract A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of $$ \sqrt{s} $$ s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into $$ \gamma \gamma \mathrm{b}\overline{\mathrm{b}} $$ γγ b b ¯ . The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling κλ and the coupling between a pair of Higgs bosons and a pair of vector bosons c2V are constrained within the ranges −3.3 < κλ< 8.5 and −1.3 < c2V< 3.5 at 95% confidence level. Constraints on κλ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of κλ and the top quark Yukawa coupling modifier κt.

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France, Turkey, Germany, Spain, Croatia, Croatia, Turkey, United Kingdom, Germany, Turkey, Turkey, Turkey, Belgium, Spain, Hungary, France, Turkey, Poland, Germany, Belarus, Italy, United States, Greece, United States, Turkey, France, Belgium, Spain, France, United Kingdom, Brazil, Belgium, Germany

Related Organizations

Université Libre de Bruxelles
Belgium
University of California, Davis
United States
University of Turin
Italy
Peking University
China (People's Republic of)
Lawrence Berkeley National Laboratory
United States

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Keywords

13000 GeV-cms, QC770-798, Physics, Particles & Fields, High Energy Physics - Experiment, Higgs particle: hadroproduction, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, FUSION, vector boson: fusion, Hadron-Hadron scattering (experiments); Higgs physics; FUSION; MASS; LHC; NLO, Hadron-Hadron scattering (experiments), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Boson, info:eu-repo/classification/ddc/530, Partons, 0105 Mathematical Physics, CMS, Physics, ddc:530, Higgs Bosons, Higgs physics, 320, Nuclear & Particles Physics, channel cross section: branching ratio: upper limit, Hadron-Hadron Scattering (Experiments), CERN LHC Coll, gluon gluon: fusion, Physical Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, PARTICLE PHYSICS, Lhc, LHC, Higgs particle: pair production, photon: pair production, top: pair production, Higgs particle: decay modes, Nuclear and High Energy Physics, p p: scattering, Higgs Physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], bottom: 2, Particles & Fields, Hadron-Hadron scattering (experiments); Higgs physics;, S126SHH, FOS: Physical sciences, bottom: pair production, coupling constant: upper limit, MASS, NLO, Nlo, 530, Nuclear and particle physics. Atomic energy. Radioactivity, Nuclear, High energy physics, Fusion, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, 0206 Quantum Physics, Astrophysique, Science & Technology, Higgs particle: coupling, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, Higgs physic, Molecular, Hadron-Hadron scattering (experiments); Higgs physics, Física, Mass, LARGE HADRON COLLIDER, sensitivity, Physics and Astronomy, High energy physics ; Experimental particle physics ; LHC ; CMS ; Hadron-Hadron scattering (experiments) ; Higgs physics ; p p: colliding beams ; Higgs particle: pair production ; bottom: 2 ; p p: scattering ; Higgs particle: coupling ; Higgs particle: hadroproduction ; Higgs particle: decay modes ; bottom: pair production ; photon: pair production ; top: pair production ; coupling: Yukawa ; coupling constant: upper limit ; vector boson: fusion ; mass spectrum: two-photon, 0202 Atomic, Experimental particle physics, p p: colliding beams, coupling: Yukawa, mass spectrum: two-photon, experimental results

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