Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton-proton collisions at √s=13 TeV

被引:0
作者
Tumasyan, A. [1 ]
Adam, W. [2 ]
Bergauer, T. [2 ]
Dragicevic, M. [2 ]
Ero, J. [2 ]
Del Valle, A. Escalante [2 ]
Fruhwirth, R. [2 ,219 ]
Jeitler, M. [2 ,219 ]
Krammer, N. [2 ]
Lechner, L. [2 ]
Liko, D. [2 ]
Madlener, T. [2 ]
Mikulec, I [2 ]
Pitters, F. M. [2 ]
Rad, N. [2 ]
Schieck, J. [2 ,219 ]
Schofbeck, R. [2 ]
Spanring, M. [2 ]
Templ, S. [2 ]
Waltenberger, W. [2 ]
Wulz, C-E [2 ,219 ]
Zarucki, M. [2 ]
Chekhovsky, V [3 ]
Litomin, A. [3 ]
Makarenko, V [3 ]
Gonzalez, J. Suarez [3 ]
Darwish, M. R. [4 ,220 ]
De Wolf, E. A. [4 ]
Di Croce, D. [4 ]
Janssen, X. [4 ]
Kello, T. [4 ]
Lelek, A. [4 ]
Pieters, M. [4 ]
Sfar, H. Rejeb [4 ]
Van Haevermaet, H. [4 ]
Van Mechelen, P. [4 ]
Van Putte, S. [4 ]
Van Remortel, N. [4 ]
Blekman, F. [5 ]
Bols, E. S. [5 ]
Chhibra, S. S. [5 ]
D'Hondt, J. [5 ]
De Clercq, J. [5 ]
Lontkovskyi, D. [5 ]
Lowette, S. [5 ]
Marchesini, I [5 ]
Moortgat, S. [5 ]
Morton, A. [5 ]
Python, Q. [5 ]
Tavernier, S. [5 ]
机构
[1] Yerevan Phys Inst, Yerevan, Armenia
[2] Inst Hochenergiephys, Vienna, Austria
[3] Inst Nucl Problems, Minsk, BELARUS
[4] Univ Antwerp, Antwerp, Belgium
[5] Vrije Univ Brussel, Brussels, Belgium
[6] Univ Libre Bruxelles, Brussels, Belgium
[7] Univ Ghent, Ghent, Belgium
[8] Catholic Univ Louvain, Louvain La Neuve, Belgium
[9] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
[10] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil
[11] Univ Estadual Paulista, Sao Paulo, Brazil
[12] Univ Fed ABC, Sao Paulo, Brazil
[13] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
[14] Univ Sofia, Sofia, Bulgaria
[15] Beihang Univ, Beijing, Peoples R China
[16] Tsinghua Univ, Dept Phys, Beijing, Peoples R China
[17] Inst High Energy Phys, Beijing, Peoples R China
[18] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China
[19] Sun Yat Sen Univ, Guangzhou, Peoples R China
[20] Fudan Univ, Inst Modern Phys, Shanghai, Peoples R China
[21] Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai, Peoples R China
[22] Zhejiang Univ, Hangzhou, Peoples R China
[23] Univ Los Andes, Bogota, Colombia
[24] Univ Antioquia, Medellin, Colombia
[25] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
[26] Univ Split, Fac Sci, Split, Croatia
[27] Inst Rudjer Boskovic, Zagreb, Croatia
[28] Univ Cyprus, Nicosia, Cyprus
[29] Charles Univ Prague, Prague, Czech Republic
[30] Escuela Politec Nacl, Quito, Ecuador
[31] Univ San Francisco Quito, Quito, Ecuador
[32] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt
[33] Fayoum Univ, Ctr High Energy Phys CHEP FU, Al Fayyum, Egypt
[34] NICPB, Tallinn, Estonia
[35] Univ Helsinki, Dept Phys, Helsinki, Finland
[36] Helsinki Inst Phys, Helsinki, Finland
[37] Lappeenranta Univ Technol, Lappeenranta, Finland
[38] Univ Paris Saclay, IRFU, CEA, Gif Sur Yvette, France
[39] Ecole Polytech, Lab Leprince Ringuet, Inst Polytech Paris, CNRS IN2P3, Palaiseau, France
[40] Univ Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
[41] Inst Phys 2 Infinis Lyon IP2I, Villeurbanne, France
[42] Georgian Tech Univ, Tbilisi, Georgia
[43] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
[44] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany
[45] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany
[46] DESY, Hamburg, Germany
[47] Univ Hamburg, Hamburg, Germany
[48] Karlsruher Inst Technol, Karlsruhe, Germany
[49] NCSR Demokritos, Inst Nucl & Particle Phys INPP, Aghia Paraskevi, Greece
[50] Natl & Kapodistrian Univ Athens, Athens, Greece
来源
EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 04期
基金
芬兰科学院; 欧盟地平线“2020”; 俄罗斯基础研究基金会; 巴西圣保罗研究基金会; 欧洲研究理事会;
关键词
A-center - CMS detectors - Dileptons - Final state - Higgs Boson decay - Integrated luminosity - Low-mass - Proton proton collisions - The standard model - Z Bosons;
D O I
10.1140/epjc/s10052-022-10127-0
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton-proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1), at a center-of-mass energy root s = 13 TeV. No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.
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页数:28
相关论文
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