Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document}= 13 TeV

被引:0
作者
A. Tumasyan
W. Adam
J. W. Andrejkovic
T. Bergauer
S. Chatterjee
K. Damanakis
M. Dragicevic
A. Escalante Del Valle
R. Frühwirth
M. Jeitler
N. Krammer
L. Lechner
D. Liko
I. Mikulec
P. Paulitsch
F. M. Pitters
J. Schieck
R. Schöfbeck
D. Schwarz
S. Templ
W. Waltenberger
C.-E. Wulz
V. Chekhovsky
A. Litomin
V. Makarenko
M. R. Darwish
E. A. De Wolf
T. Janssen
T. Kello
A. Lelek
H. Rejeb Sfar
P. Van Mechelen
S. Van Putte
N. Van Remortel
F. Blekman
E. S. Bols
J. D’Hondt
M. Delcourt
H. El Faham
S. Lowette
S. Moortgat
A. Morton
D. Müller
A. R. Sahasransu
S. Tavernier
W. Van Doninck
D. Beghin
B. Bilin
B. Clerbaux
G. De Lentdecker
机构
[1] Yerevan Physics Institute,Department of Physics
[2] Institut für Hochenergiephysik,State Key Laboratory of Nuclear Physics and Technology
[3] Institute for Nuclear Problems,Center for High Energy Physics (CHEP
[4] Universiteit Antwerpen,FU)
[5] Vrije Universiteit Brussel,Department of Physics
[6] Université Libre de Bruxelles,MTA
[7] Ghent University,ELTE Lendület CMS Particle and Nuclear Physics Group
[8] Université Catholique de Louvain,Institute of Physics
[9] Centro Brasileiro de Pesquisas Fisicas,National Centre for Particle Physics
[10] Universidade do Estado do Rio de Janeiro,National Centre for Physics
[11] Universidade Estadual Paulista,Institute of Experimental Physics, Faculty of Physics
[12] Universidade Federal do ABC,Skobeltsyn Institute of Nuclear Physics
[13] Institute for Nuclear Research and Nuclear Energy,Institute of Basic and Applied Sciences, Faculty of Engineering
[14] Bulgarian Academy of Sciences,Physics Department, Faculty of Science
[15] University of Sofia,Department of Electrical and Computer Engineering
[16] Beihang University,Department of Physics
[17] Tsinghua University,Department of Physics
[18] Institute of High Energy Physics,Scuola Superiore Meridionale
[19] Peking University,Faculty of Physics
[20] Sun Yat-Sen University,School of Physics and Astronomy
[21] Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) — Fudan University,undefined
[22] Zhejiang University,undefined
[23] Hangzhou,undefined
[24] China,undefined
[25] Universidad de Los Andes,undefined
[26] Universidad de Antioquia,undefined
[27] University of Split,undefined
[28] Faculty of Electrical Engineering,undefined
[29] Mechanical Engineering and Naval Architecture,undefined
[30] University of Split,undefined
[31] Faculty of Science,undefined
[32] Institute Rudjer Boskovic,undefined
[33] University of Cyprus,undefined
[34] Charles University,undefined
[35] Escuela Politecnica Nacional,undefined
[36] Universidad San Francisco de Quito,undefined
[37] Academy of Scientific Research and Technology of the Arab Republic of Egypt,undefined
[38] Egyptian Network of High Energy Physics,undefined
[39] Fayoum University,undefined
[40] National Institute of Chemical Physics and Biophysics,undefined
[41] University of Helsinki,undefined
[42] Helsinki Institute of Physics,undefined
[43] Lappeenranta University of Technology,undefined
[44] IRFU,undefined
[45] CEA,undefined
[46] Université Paris-Saclay,undefined
[47] Laboratoire Leprince-Ringuet,undefined
[48] CNRS/IN2P3,undefined
[49] Ecole Polytechnique,undefined
[50] Institut Polytechnique de Paris,undefined
关键词
Beyond Standard Model; Hadron-Hadron Scattering; Higgs Physics; Particle and Resonance Production;
D O I
10.1007/JHEP05(2022)005
中图分类号
学科分类号
摘要
A search for new heavy resonances decaying to a pair of Higgs bosons (HH) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. Data were collected with the CMS detector at the LHC in 2016–2018, corresponding to an integrated luminosity of 138 fb−1. Resonances with a mass between 0.8 and 4.5 TeV are considered using events in which one Higgs boson decays into a bottom quark pair and the other into final states with either one or two charged leptons. Specifically, the single-lepton decay channel HH→bb¯WW∗→bb¯ℓvqq¯′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathrm{HH}\to \mathrm{b}\overline{\mathrm{b}}{\mathrm{WW}}^{\ast}\to \mathrm{b}\overline{\mathrm{b}}\ell v\mathrm{q}{\overline{\mathrm{q}}}^{\prime } $$\end{document} and the dilepton decay channels HH→bb¯WW∗→bb¯ℓvℓv\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathrm{HH}\to \mathrm{b}\overline{\mathrm{b}}{\mathrm{WW}}^{\ast}\to \mathrm{b}\overline{\mathrm{b}}\ell v\ell v $$\end{document} and HH→bb¯ττ→bb¯ℓvvℓvv\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathrm{HH}\to \mathrm{b}\overline{\mathrm{b}}\uptau \uptau \to \mathrm{b}\overline{\mathrm{b}}\ell vv\ell vv $$\end{document} are examined, where ℓ in the final state corresponds to an electron or muon. The signal is extracted using a two-dimensional maximum likelihood fit of the H→bb¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathrm{H}\to \mathrm{b}\overline{\mathrm{b}} $$\end{document} jet mass and HH invariant mass distributions. No significant excess above the standard model expectation is observed in data. Model-independent exclusion limits are placed on the product of the cross section and branching fraction for narrow spin-0 and spin-2 massive bosons decaying to HH. The results are also interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. The results provide the most stringent limits to date for X → HH signatures with final-state leptons and at some masses provide the most sensitive limits of all X → HH searches.
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  • [1] Branco GC(2012)undefined Phys. Rept. 516 1-undefined
  • [2] Ferreira PM(1971)undefined Nucl. Phys. B 31 86-undefined
  • [3] Lavoura L(1974)undefined Phys. Lett. B 49 52-undefined
  • [4] Rebelo MN(1974)undefined Nucl. Phys. B 70 39-undefined
  • [5] Sher M(2008)undefined JHEP 04 063-undefined
  • [6] Silva JP(2012)undefined Eur. Phys. J. C 72 1896-undefined
  • [7] Neveu A(2014)undefined JHEP 10 059-undefined
  • [8] Schwarz JH(2014)undefined JHEP 07 079-undefined
  • [9] Wess J(2008)undefined Eur. Phys. J. C 53 473-undefined
  • [10] Zumino B(2012)undefined JHEP 12 061-undefined