Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s=8 TeV with the ATLAS detector

被引：36

作者：

Aad, G. ^{[120
,121
]}

Abajyan, T. ^{[32
]}

Abbott, B. ^{[153
]}

Abdallah, J. ^{[216
]}

Khalek, S. Abdel ^{[157
,158
]}

Abdinov, O. ^{[15
]}

Aben, R. ^{[146
,147
]}

Abi, B. ^{[154
]}

Abolins, M. ^{[126
]}

AbouZeid, O. S. ^{[224
]}

Abramowicz, H. ^{[218
]}

Abreu, H. ^{[196
]}

Abulaiti, Y. ^{[209
,210
]}

Acharya, B. S. ^{[231
,232
,252
]}

Adamczyk, L. ^{[62
]}

Adams, D. L. ^{[39
]}

Addy, T. N. ^{[85
]}

Adelman, J. ^{[1
]}

Adomeit, S. ^{[137
]}

Adye, T. ^{[181
]}

Agatonovic-Jovin, T. ^{[19
]}

Aguilar-Saavedra, J. A. ^{[169
,173
,174
]}

Agustoni, M. ^{[24
,25
]}

Ahlen, S. P. ^{[33
]}

Ahmad, A. ^{[212
,213
]}

Ahmadov, F. ^{[15
,95
]}

Aielli, G. ^{[186
]}

Akesson, T. P. ^{[116
]}

Akimoto, G. ^{[220
,221
]}

Akimov, A. V. ^{[133
]}

Albert, J. ^{[242
]}

Albrand, S. ^{[82
,83
,84
]}

Alconada Verzini, M. J. ^{[101
,102
]}

Aleksa, M. ^{[46
]}

Aleksandrov, I. N. ^{[95
]}

Alexa, C. ^{[40
]}

Alexander, G. ^{[218
]}

Alexandre, G. ^{[74
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[231
,233
]}

Alimonti, G. ^{[127
]}

Alio, L. ^{[120
,121
]}

Alison, J. ^{[47
]}

Allbrooke, B. M. M. ^{[26
]}

Allison, L. J. ^{[103
]}

Allport, P. P. ^{[106
]}

Allwood-Spiers, S. E. ^{[80
]}

Almond, J. ^{[119
]}

Aloisio, A. ^{[142
,143
]}

Alon, R. ^{[245
]}

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] Univ Belgrade, Inst Phys, Belgrade, Serbia

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

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

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

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

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

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

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

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

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

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

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

[30] INFN Sez Bologna, Bologna, Italy

[31] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

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

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

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

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

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

[37] Univ Fed Sao Joao del Rei, Sao Joao del Rei, Brazil

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

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

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

[41] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, 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：

PHYSICAL REVIEW D | 2014年 / 90卷 / 01期

基金：

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

关键词：

D O I：

10.1103/PhysRevD.90.012004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3 fb(-1) of pp collisions at root s = 8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely charged electrons or muons consistent with the decay of a Z boson are analyzed. No excess above the Standard Model prediction is observed. Limits are set on the mass scale of the contact interaction as a function of the dark-matter particle mass using an effective field theory description of the interaction of dark matter with quarks or with Z bosons. Limits are also set on the coupling and mediator mass of a model in which the interaction is mediated by a scalar particle.

引用

页数：21

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