Search for new phenomena in events with a photon and missing transverse momentum in pp collisions at √s = 8 TeV with the ATLAS detector

被引：40

作者：

Aad, G. ^{[121
,122
]}

Abbott, B. ^{[154
]}

Abdallah, J.

Khalek, S. Abdel ^{[158
,159
]}

Abdinov, O. ^{[15
]}

Aben, R. ^{[147
,148
]}

Abi, B. ^{[155
]}

Abolins, M. ^{[127
]}

AbouZeid, O. S. ^{[225
]}

Abramowicz, H. ^{[219
]}

Abreu, H. ^{[218
]}

Abreu, R. ^{[45
]}

Abulaiti, Y. ^{[210
,211
]}

Acharya, B. S. ^{[232
,233
,253
]}

Adamczyk, L. ^{[62
]}

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

Adelman, J. ^{[149
]}

Adomeit, S. ^{[138
]}

Adye, T. ^{[183
]}

Agatonovic-Jovin, T. ^{[18
]}

Aguilar-Saavedra, J. A. ^{[170
,175
,176
,177
,178
,216
]}

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

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

Ahmadov, F. ^{[15
,96
]}

Aielli, G. ^{[187
,188
]}

Akerstedt, H. ^{[210
,211
]}

Akesson, T. P. A. ^{[117
]}

Akimoto, G. ^{[221
,222
]}

Akimov, A. V. ^{[134
]}

Alberghi, G. L. ^{[30
,31
]}

Albert, J. ^{[243
]}

Albrand, S. ^{[83
]}

Verzini, M. J. Alconada ^{[102
,103
]}

Aleksa, M. ^{[45
]}

Aleksandrov, I. N. ^{[96
]}

Alexa, C. ^{[40
]}

Alexander, G. ^{[219
]}

Alexandre, G. ^{[75
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[154
]}

Alimonti, G. ^{[128
]}

Alio, L. ^{[121
,122
]}

Alison, J. ^{[46
]}

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

Allison, L. J. ^{[104
]}

Allport, P. P. ^{[107
]}

Aloisio, A. ^{[143
,144
]}

Alonso, A. ^{[59
]}

Alonso, F. ^{[102
,103
]}

Alpigiani, C. ^{[110
]}

机构：

[1] Univ Adelaide, Dept 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] Istanbul Aydin Univ, Istanbul, Turkey

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

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

[9] Univ Savoie, Annecy Le Vieux, France

[10] Argonne Natl Lab, High Energy Phys Div, 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, D-10099 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] Ist Nazl Fis Nucl, 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, Elect Circuits Dept, Juiz De Fora, Brazil

[37] Fed Univ Sao Joao del Rei UFSJ, 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 Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

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

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

[45] CERN, Geneva, Switzerland

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

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

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

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

[50] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 01期

关键词：

E(+)E(-) COLLISIONS; DARK-MATTER; FIELD-THEORY; ENERGY; MODEL; SQUARK;

D O I：

10.1103/PhysRevD.91.012008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the LHC are reported. Data were collected in proton-proton collisions at a center-of-mass energy of 8 TeVand correspond to an integrated luminosity of 20.3 fb(-1). The observed data are well described by the expected Standard Model backgrounds. The expected (observed) upper limit on the fiducial cross section for the production of events with a photon and large missing transverse momentum is 6.1 (5.3) fb at 95% confidence level. Exclusion limits are presented on models of new phenomena with large extra spatial dimensions, supersymmetric quarks, and direct pair production of dark-matter candidates.

引用

页数：25

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