Search for the pair production of third-generation squarks with two-body decays to a bottom or charm quark and a neutralino in proton-proton collisions at √s=13 TeV

被引：35

作者：

Sirunyan, A. M. ^{[2
]}

Tumasyan, A. ^{[2
]}

Adam, W. ^{[3
]}

Ambrogi, F. ^{[3
]}

Asilar, E. ^{[3
]}

Bergauer, T. ^{[3
]}

Brandstetter, J. ^{[3
]}

Brondolin, E. ^{[3
]}

Dragicevic, M. ^{[3
]}

Eroe, J. ^{[3
]}

Flechl, M. ^{[3
]}

Friedl, M. ^{[3
]}

Fruehwirth, R. ^{[3
,201
]}

Ghete, V. M. ^{[3
]}

Grossmann, J. ^{[3
]}

Hrubec, J. ^{[3
]}

Jeitler, M. ^{[3
,201
]}

Koenig, A. ^{[3
]}

Krammer, N. ^{[3
]}

Kraetschmer, I. ^{[3
]}

Liko, D. ^{[3
]}

Madlener, T. ^{[3
]}

Mikulec, I. ^{[3
]}

Pree, E. ^{[3
]}

Rabady, D. ^{[3
]}

Rad, N. ^{[3
]}

Rohringer, H. ^{[3
]}

Schieck, J. ^{[3
,201
]}

Schoefbeck, R. ^{[3
]}

Spanring, M. ^{[3
]}

Spitzbart, D. ^{[3
]}

Strauss, J. ^{[3
]}

Waltenberger, W. ^{[3
]}

Wittmann, J. ^{[3
]}

Wulz, C. -E. ^{[3
,201
]}

Zarucki, M. ^{[3
]}

Chekhovsky, V. ^{[4
]}

Gonzalez, J. Suarez ^{[4
]}

De Wolf, E. A. ^{[5
]}

Di Croce, D. ^{[5
]}

Janssen, X. ^{[5
]}

Lauwers, J. ^{[5
]}

Van Haevermaet, H. ^{[5
]}

Van Mechelen, P. ^{[5
]}

Van Remortel, N. ^{[5
]}

Abu Zeid, S. ^{[6
]}

Blekman, F. ^{[6
]}

D'Hondt, J. ^{[6
]}

De Bruyn, I. ^{[6
]}

De Clercq, J. ^{[6
]}

机构：

[1] CERN, Geneva, Switzerland

[2] Yerevan Phys Inst, Yerevan, Armenia

[3] Inst Hochenergiephys, Vienna, Austria

[4] Inst Nucl Problems, Minsk, BELARUS

[5] Univ Antwerp, Antwerp, Belgium

[6] Vrije Univ Brussel, Brussels, Belgium

[7] Univ Libre Bruxelles, Brussels, Belgium

[8] Univ Ghent, Ghent, Belgium

[9] Catholic Univ Louvain, Louvain La Neuve, Belgium

[10] Univ Mons, Mons, Belgium

[11] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[12] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[13] Univ Estadual Paulista, Sao Paulo, Brazil

[14] Univ Fed ABC, Sao Paulo, Brazil

[15] Bulgaria Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[16] Univ Sofia, Sofia, Bulgaria

[17] Beihang Univ, Beijing, Peoples R China

[18] Inst High Energy Phys, Beijing, Peoples R China

[19] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[20] Univ Los Andes, Bogota, Colombia

[21] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[22] Univ Split, Fac Sci, Split, Croatia

[23] Inst Rudjer Boskovic, Zagreb, Croatia

[24] Univ Cyprus, Nicosia, Cyprus

[25] Charles Univ Prague, Prague, Czech Republic

[26] Univ San Francisco Quito, Quito, Ecuador

[27] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt

[28] NICPB, Tallinn, Estonia

[29] Univ Helsinki, Dept Phys, Helsinki, Finland

[30] Helsinki Inst Phys, Helsinki, Finland

[31] Lappeenranta Univ Technol, Lappeenranta, Finland

[32] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[33] Univ Paris Saclay, CNRS IN2P3, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France

[34] Univ Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France

[35] CNRS, IN2P3, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France

[36] Univ Claude Bernard Lyon 1, Univ Lyon, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

[37] Georgian Tech Univ, Tbilisi, Georgia

[38] Tbilisi State Univ, Tbilisi, Georgia

[39] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[40] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[41] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[42] DESY, Hamburg, Germany

[43] Univ Hamburg, Hamburg, Germany

[44] Inst Expt Kernphys, Karlsruhe, Germany

[45] INPP, NCSR Demokritos, Aghia Paraskevi, Greece

[46] Natl & Kapodistrian Univ Athens, Athens, Greece

[47] Univ Ioannina, Ioannina, Greece

[48] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary

[49] Wigner Res Ctr Phys, Budapest, Hungary

[50] Inst Nucl Res ATOMKI, Debrecen, Hungary

来源：

PHYSICS LETTERS B | 2018年 / 778卷

基金：

巴西圣保罗研究基金会; 奥地利科学基金会; 美国国家科学基金会; 英国科学技术设施理事会; 欧洲研究理事会; 新加坡国家研究基金会; 芬兰科学院; 中国国家自然科学基金; 俄罗斯基础研究基金会; 爱尔兰科学基金会;

关键词：

CMS; Physics; Supersymmetry; MISSING TRANSVERSE-MOMENTUM; SCALAR TOP-QUARK; PP COLLISIONS; FINAL-STATE; MODEL; SUPERSYMMETRY; EXTENSION; INVARIANT;

D O I：

10.1016/j.physletb.2018.01.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results are presented from a search for the pair production of third-generation squarks in proton-proton collision events with two-body decays to bottom or charm quarks and a neutralino, which produces a significant imbalance in the transverse momentum. The search is performed using a sample of proton-proton collision data at root s = 13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9fb(-1). No statistically significant excess of events is observed beyond the expected contribution from standard model processes. Exclusion limits are set in the context of simplified models of bottom or top squark pair production. Models with bottom squark masses up to 1220 GeV are excluded at 95% confidence level for light neutralinos, and models with top squark masses of 510 GeV are excluded assuming that the mass splitting between the top squark and the neutralino is small. (C) 2018 The Author. Published by Elsevier B.V.

引用

页码：263 / 291

页数：29

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