Search for quark contact interactions in dijet angular distributions in pp collisions at √s=7 TeV measured with the ATLAS detector

被引：59

作者：

Aad, G. ^{[1
]}

Abbott, B. ^{[136
]}

Abdallah, J. ^{[16
]}

Abdelalim, A. A. ^{[65
]}

Abdesselam, A. ^{[143
]}

Abdinov, O. ^{[15
]}

Abi, B. ^{[137
]}

Abolins, M. ^{[110
]}

Abramowicz, H. ^{[189
]}

Abreu, H. ^{[140
]}

Acerbi, E. ^{[111
,112
]}

Acharya, B. S. ^{[202
,203
]}

Ackers, M. ^{[30
]}

Adams, D. L. ^{[35
]}

Addy, T. N. ^{[74
]}

Adelman, J. ^{[217
]}

Aderholz, M. ^{[122
]}

Adomeit, S. ^{[121
]}

Adorisio, C. ^{[52
,53
]}

Adragna, R. ^{[97
]}

Adye, T. ^{[158
]}

Aefsky, S. ^{[32
]}

Aguilar-Saavedra, J. A. ^{[151
,152
,153
]}

Aharrouche, M. ^{[103
]}

Ahlen, S. P. ^{[31
]}

Ahles, F. ^{[1
]}

Ahmad, A. ^{[184
]}

Ahmed, H. ^{[3
]}

Ahsan, M. ^{[57
]}

Aielli, G. ^{[163
,164
]}

Akdogan, T. ^{[25
]}

Akesson, T. P. A. ^{[101
]}

Akimoto, G. ^{[191
,192
]}

Akimov, A. V. ^{[117
]}

Aktas, A. ^{[1
]}

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

Alam, M. A. ^{[98
]}

Albrand, S. ^{[73
]}

Aleksa, M. ^{[41
]}

Aleksandrov, I. N. ^{[85
]}

Aleppo, M. ^{[111
,112
]}

Alessandria, F. ^{[111
]}

Alexa, C. ^{[36
]}

Alexander, G. ^{[189
]}

Alexandre, G. ^{[65
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[30
]}

Aliev, M. ^{[22
]}

Alimonti, G. ^{[111
]}

Alison, J. ^{[146
]}

机构：

[1] Univ Freiburg, Fak Math & Phys, Hermann Herder Str 3, D-79104 Freiburg, Germany

[2] SUNY Albany, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Ctr Particle Phys, Edmonton, AB T6G 2G7, Canada

[4] Ankara Univ, Fac Sci, Dept Phys, TR-061000 Ankara, Turkey

[5] Dumlupinar Univ, Fac Arts & Sci, Dept Phys, Kutahya, Turkey

[6] Gazi Univ, Fac Arts & Sci, Dept Phys, TR-06500 Ankara, Turkey

[7] TOBB Univ Econ & Technol, Fac Arts & Sci, Div Phys, TR-06560 Ankara, Turkey

[8] Turkish Atom Energy Commiss, TR-06530 Ankara, Turkey

[9] Univ Savoie, LAPP, CNRS, IN2P3, 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, GR-15771 Athens, Greece

[14] Natl Tech Univ Athens, Dept Phys, Iroon Polytech 9, GR-15780 Zografos, Greece

[15] Azerbaijan Acad Sci, Inst Phys, AZ-143 Baku, Azerbaijan

[16] Univ Autonoma Barcelona, Inst Fis Altes Energies, IFAE, ES-08193 Bellaterra, Barcelona, Spain

[17] Univ Belgrade, Inst Phys, Belgrade 11001, Serbia

[18] Vinca Inst Nucl Sci, Belgrade 11000, Serbia

[19] Univ Bergen, Dept Phys & Technol, NO-5007 Bergen, Norway

[20] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

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

[22] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[23] Univ Bern, Albert Einstein Ctr Fundamental Phys, High Energy Phys Lab, CH-3012 Bern, Switzerland

[24] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[25] Bogazici Univ, Fac Sci, Dept Phys, TR-80815 Bebek, Turkey

[26] Dogus Univ, Fac Arts & Sci, Dept Phys, TR-34722 Istanbul, Turkey

[27] Gaziantep Univ, Fac Engn, Dept Engn Phys, TR-27310 Sehitkamil, Gaziantep, Turkey

[28] Ist Nazl Fis Nucl, Sez Bologna, IT-40127 Bologna, Italy

[29] Univ Bologna, Dipartimento Fis, IT-40127 Bologna, Italy

[30] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

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

[32] Brandeis Univ, Dept Phys, Waltham, MA 02454 USA

[33] Univ Fed Rio de Janeiro, COPPE EE IF, Ilha Fundao, BR-21945970 Rio De Janeiro, Brazil

[34] Univ Sao Paulo, Inst Fis, BR-05508900 Sao Paulo, Brazil

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

[36] Natl Inst Phys & Nucl Engn, R-077125 Bucharest, Romania

[37] Univ Politehn Bucuresti, Sector 6, Bucharest 060042, Romania

[38] Univ Buenos Aires, FCEyN, Dto Fis, RA-1428 Buenos Aires, DF, Argentina

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

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

[41] CERN, CH-1211 Geneva 23, Switzerland

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

[43] Pontificia Univ Catolica Chile, Fac Fis, Dept Fis, Santiago 22, Chile

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

[45] Chinese Acad Sci, Inst High Energy Phys, Cn Beijing 100049, Peoples R China

[46] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Cn Anhui, Peoples R China

[47] Nanjing Univ, Dept Phys, Nanjing 210093, Cn Jiangsu, Peoples R China

[48] Shandong Univ, High Energy Phys Grp, Jinan 250100, Cn Shandong, Peoples R China

[49] Univ Clermont Ferrand, Clermont Univ, Phys Corpusculaire Lab, CNRS,IN2P3, FR-63177 Aubiere, France

[50] Columbia Univ, Nevis Lab, Irvington, NY 10533 USA

来源：

PHYSICS LETTERS B | 2011年 / 694卷 / 4-5期

基金：

瑞士国家科学基金会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会; 瑞典研究理事会;

关键词：

ATLAS; LHC; 7; TeV; Dijets angular distributions; Quark compositeness; Contact interactions;

D O I：

10.1016/j.physletb.2010.10.021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Dijet angular distributions from the first LHC pp collisions at center-of-mass energy root s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb(-1). Dijet chi distributions and centrality ratios have been measured up to dijet masses of 2.8 TeV, and found to be in good agreement with Standard Model predictions. Analysis of the chi distributions excludes quark contact interactions with a compositeness scale Lambda below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits. (C) 2010 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：327 / 345

页数：19

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