Measurement of the Zγ → ν(ν)over-barγ production cross section in pp collisions at √s=8 TeV and limits on anomalous ZZγ and Zγγ trilinear gauge boson couplings

被引：23

作者：

Khachatryan, V. ^{[1
]}

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

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Asilar, E. ^{[2
]}

Bergauer, T. ^{[2
]}

Brandstetter, J. ^{[2
]}

Brondolin, E. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Flechl, M. ^{[2
]}

Friedl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,189
]}

Ghete, V. M. ^{[2
]}

Hartl, C. ^{[2
]}

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,189
]}

Knuenz, V. ^{[2
]}

Koenig, A. ^{[2
]}

Krammer, M. ^{[2
,189
]}

Kraetschmer, I. ^{[2
]}

Liko, D. ^{[2
]}

Matsushita, T. ^{[2
]}

Mikulec, I. ^{[2
]}

Rabady, D. ^{[2
,124
]}

Rahbaran, B. ^{[2
]}

Rohringer, H. ^{[2
]}

Schieck, J. ^{[2
,189
]}

Schoefbeck, R. ^{[2
]}

Strauss, J. ^{[2
]}

Treberer-Treberspurg, W. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,189
]}

Mossolov, V. ^{[3
]}

Shumeiko, N. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Alderweireldt, S. ^{[4
]}

Cornelis, T. ^{[4
]}

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

Janssen, X. ^{[4
]}

Knutsson, A. ^{[4
]}

Lauwers, J. ^{[4
]}

Luyckx, S. ^{[4
]}

De Klundert, M. Van ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, R. ^{[4
]}

Van Remortel, N. ^{[4
]}

Van Spilbeeck, A. ^{[4
]}

Abu Zeid, S. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephys OeAW, Vienna, Austria

[3] Natl Ctr Particle & High Energy Phys, 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] Univ Mons, Mons, Belgium

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

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

[12] Univ Estadual Paulista, Sao Paulo, Brazil

[13] Univ Fed ABC, Sao Paulo, Brazil

[14] Inst Nucl Energy Res, Sofia, Bulgaria

[15] Univ Sofia, Sofia, Bulgaria

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

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

[18] Univ Los Andes, Bogota, Colombia

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

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

[21] Rudjer Boskovic Inst, Zagreb, Croatia

[22] Univ Cyprus, Nicosia, Cyprus

[23] Charles Univ Prague, Prague, Czech Republic

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

[25] NICPB, Tallinn, Estonia

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

[27] Helsinki Inst Phys, Helsinki, Finland

[28] Lappeenranta Univ Technol, Lappeenranta, Finland

[29] CEA Saclay, DSM IRFU, Gif Sur Yvette, France

[30] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, Palaiseau, France

[31] Univ Strasbourg, Univ Haute Alsace Mulhouse, Inst Pluridisciplinaire Hubert Curien, CNRS,IN2P3, Strasbourg, France

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

[33] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

[34] Georgian Tech Univ, Tbilisi, Georgia

[35] Tbilisi State Univ, Tbilisi, Georgia

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

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

[38] DESY, Hamburg, Germany

[39] Univ Hamburg, Hamburg, Germany

[40] Inst Expt Kernphys, Karlsruhe, Germany

[41] NCSR Demokritos, Inst Nucl & Particle Phys, Aghia Paraskevi, Greece

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

[43] Univ Ioannina, Ioannina, Greece

[44] Wigner Res Ctr Phys, Budapest, Hungary

[45] Inst Nucl Res ATOMKI, Debrecen, Hungary

[46] Univ Debrecen, Debrecen, Hungary

[47] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India

[48] Panjab Univ, Chandigarh, India

[49] Univ Delhi, Delhi, India

[50] Saha Inst Nucl Phys, Kolkata, India

来源：

PHYSICS LETTERS B | 2016年 / 760卷

基金：

芬兰科学院; 美国国家科学基金会; 巴西圣保罗研究基金会;

关键词：

Photon; MET; SECTOR;

D O I：

10.1016/j.physletb.2016.06.080

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An inclusive measurement of the Z gamma -> nu(nu) over bar gamma production cross section in pp collisions at root s = 8 TeV is presented, using data corresponding to an integrated luminosity of 19.6fb(-1) collected with the CMS detector at the LHC. This measurement is based on the observation of events with large missing energy and with a single photon with transverse momentum above 145 GeV and absolute pseudorapidity in the range vertical bar eta vertical bar < 1.44. The measured Z gamma -> nu<(nu)over bar>gamma production cross section, 52.7 +/- 2.1(stat) +/- 6.4(syst) +/- 1.4(lumi) fb, agrees well with the standard model prediction of 50.0(-2.2)(+2.4) fb. A study of the photon transverse momentum spectrum yields the most stringent limits to date on the anomalous ZZ gamma and Z gamma gamma trilinear gauge boson couplings. (C) 2016 The Author(s). Published by Elsevier B.V.

引用

页码：448 / 468

页数：21

共 50 条

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Bergauer, T.
Dragicevic, M.
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Ghete, V. M.
Hoermann, N.
Hrubec, J.
Jeitler, M.
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