Measurements of pp → ZZ production cross sections and constraints on anomalous triple gauge couplings at √s=13 TeV

被引：0

作者：

Sirunyan, A. M. ^{[1
]}

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Ambrogi, F. ^{[2
]}

Bergauer, T. ^{[2
]}

Dragicevic, M. ^{[2
]}

Ero, J. ^{[2
]}

Del Valle, A. Escalante ^{[2
]}

Fruhwirth, R. ^{[2
,218
]}

Jeitler, M. ^{[2
,218
]}

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
,218
]}

Schofbeck, R. ^{[2
]}

Spanring, M. ^{[2
]}

Templ, S. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C-E ^{[2
,218
]}

Zarucki, M. ^{[2
]}

Chekhovsky, V ^{[3
]}

Litomin, A. ^{[3
]}

Makarenko, V ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Darwish, M. R. ^{[4
,219
]}

De Wolf, E. A. ^{[4
]}

Di Croce, D. ^{[4
]}

Janssen, X. ^{[4
]}

Kello, T. ^{[4
,6
]}

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
]}

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] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, 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] Inst Polytech Paris, Lab Leprince Ringuet, Ecole Polytech, CNRS,IN2P3, Paris, France

[40] Univ Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France

[41] Univ Claude Bernard Lyon 1, Univ Lyon, Inst Phys Nucl Lyon, CNRS,IN2P3, 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 | 2021年 / 81卷 / 03期

基金：

芬兰科学院; 巴西圣保罗研究基金会; 欧盟地平线“2020”; 欧洲研究理事会;

关键词：

Bosons;

D O I：

10.1140/epjc/s10052-020-08817-8

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：

The production of Z boson pairs in proton-proton (pp) collisions, pp -> (Z/gamma*)(Z/gamma*) -> 2l2l', where l, l' = e or mu, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 137 fb(-1), collected during 2016-2018. The ZZ production cross section, sigma(tot)(pp -> ZZ) = 17.4 +/- 0.3 (stat) +/- 0.5 (syst) +/- 0.4 (theo)+/- 0.3 (lumi) pb, measured for events with two pairs of opposite-sign, same-flavor leptons produced in the mass region 60 < m(l+l-) < 120 GeV is consistent with standard model predictions. Differential cross sections are also measured and agree with theoretical predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZ gamma couplings.

引用

页数：30

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