Measurement of ZZ production in pp collisions at √s=7 TeV and limits on anomalous ZZZ and ZZγ couplings with the ATLAS detector

被引：0

作者：

Aad, G. ^{[72
]}

Abajyan, T. ^{[33
]}

Abbott, B. ^{[151
]}

Abdallah, J. ^{[16
,17
,18
]}

Khalek, S. Abdel ^{[155
,156
]}

Abdelalim, A. A. ^{[73
]}

Abdinov, O. ^{[15
]}

Aben, R. ^{[144
,145
]}

Abi, B. ^{[152
]}

Abolins, M. ^{[124
]}

AbouZeid, O. S. ^{[216
]}

Abramowicz, H. ^{[210
]}

Abreu, H. ^{[189
]}

Acharya, B. S. ^{[223
,224
,244
]}

Adamczyk, L. ^{[61
]}

Adams, D. L. ^{[40
]}

Addy, T. N. ^{[84
]}

Adelman, J. ^{[241
]}

Adomeit, S. ^{[135
]}

Adragna, P. ^{[108
]}

Adye, T. ^{[174
]}

Aefsky, S. ^{[35
]}

Aguilar-Saavedra, J. A. ^{[168
,169
,245
]}

Agustoni, M. ^{[25
,26
]}

Aharrouche, M. ^{[116
]}

Ahlen, S. P. ^{[34
]}

Ahles, F. ^{[72
]}

Ahmad, A. ^{[204
,205
]}

Ahsan, M. ^{[64
]}

Aielli, G. ^{[179
,180
]}

Akesson, T. P. A. ^{[114
]}

Akimoto, G. ^{[212
,213
]}

Akimov, A. V. ^{[131
]}

Alam, M. S. ^{[2
]}

Alam, M. A. ^{[109
]}

Albert, J. ^{[234
]}

Albrand, S. ^{[81
,82
,83
]}

Aleksa, M. ^{[46
]}

Aleksandrov, I. N. ^{[94
]}

Alessandria, F. ^{[125
]}

Alexa, C. ^{[41
]}

Alexander, G. ^{[210
]}

Alexandre, G. ^{[73
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[223
,225
]}

Aliev, M. ^{[24
]}

Alimonti, G. ^{[125
]}

Alison, J. ^{[162
]}

Allbrooke, B. M. M. ^{[27
]}

Allport, P. P. ^{[105
]}

机构：

[1] Univ Adelaide, Sch Chem & Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Gazi Univ, Dept Phys, Ankara, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] Turkish Atom Energy Commiss, Ankara, Turkey

[8] CNRS IN2P3, LAPP, Annecy Le Vieux, France

[9] Univ Savoie, Annecy Le Vieux, France

[10] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[11] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[12] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[13] Univ Athens, Dept Phys, Athens, Greece

[14] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[15] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[16] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[17] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[18] ICREA, Barcelona, Spain

[19] Univ Belgrade, Inst Phys, Belgrade, Serbia

[20] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia

[21] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[22] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[23] Univ Calif Berkeley, Berkeley, CA 94720 USA

[24] Humboldt Univ, Dept Phys, Berlin, Germany

[25] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[26] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[27] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[28] Bogazici Univ, Dept Phys, Istanbul, Turkey

[29] Dogus Univ, Div Phys, Istanbul, Turkey

[30] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[31] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[32] Univ Bologna, Dipartimento Fis, Bologna, Italy

[33] Univ Bonn, Inst Phys, Bonn, Germany

[34] Boston Univ, Dept Phys, Boston, MA 02215 USA

[35] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[36] Univ Fed Rio de Janeiro, COPPE, EE, IF, Rio De Janeiro, Brazil

[37] Univ Fed Juiz de Fora, Juiz de Fora, Brazil

[38] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[39] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[40] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[41] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[42] Univ Politehn Bucuresti, Bucharest, Romania

[43] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[44] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[45] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[46] CERN, Geneva, Switzerland

[47] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[48] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[49] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[50] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 03期

基金：

巴西圣保罗研究基金会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

Hadron-Hadron Scattering;

D O I：

10.1007/JHEP03(2013)128

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 measurement of the ZZ production cross section in proton-proton collisions at root s = 7 TeV using data recorded by the ATLAS experiment at the Large Hadron Collider is presented. In a data sample corresponding to an integrated luminosity of 4.6 fb(-1) collected in 2011, events are selected that are consistent either with two Z bosons decaying to electrons or muons or with one Z boson decaying to electrons or muons and a second Z boson decaying to neutrinos. The ZZ((*)) -> l(+)l(-)l'(+)l'(-) and ZZ -> l(+)l(-) nu(nu) over bar cross sections are measured in restricted phase-space regions. These results are then used to derive the total cross section for ZZ events produced with both Z bosons in the mass range 66 to 116 GeV, sigma(tot)(ZZ) = 6.7 +/- 0.7 (stat.) (+0.4)(-0.3) (syst.) +/- 0.3 (lumi.) pb, which is consistent with the Standard Model prediction of 5.89(-0.18)(+0.22) pb calculated at next-to-leading order in QCD. The normalized differential cross sections in bins of various kinematic variables are presented. Finally, the differential event yield as a function of the transverse momentum of the leading Z boson is used to set limits on anomalous neutral triple gauge boson couplings in ZZ production.

引用

页数：48

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