Measurement of the cross-section for electroweak production of dijets in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector

被引：22

作者：

Aaboud, M. ^{[191
,192
]}

Aad, G. ^{[124
,125
]}

Abbott, B. ^{[156
]}

Abdinov, O. ^{[15
]}

Abeloos, B. ^{[160
]}

Abidi, S. H. ^{[222
]}

AbouZeid, O. S. ^{[195
]}

Abraham, N. L. ^{[211
]}

Abramowicz, H. ^{[215
]}

Abreu, H. ^{[214
]}

Abreu, R. ^{[159
]}

Abulait, Y. ^{[207
,208
]}

Acharya, B. S. ^{[231
,232
,249
]}

Adachi, S. ^{[217
,218
]}

Adamczyk, L. ^{[64
]}

Adelman, J. ^{[151
]}

Adersberger, M. ^{[140
]}

Adye, T. ^{[182
]}

Affolder, A. A. ^{[195
]}

Afik, Y. ^{[214
]}

Agatonovic-Jovin, T. ^{[17
]}

Agheorghiesei, C. ^{[42
]}

Aguilar-Saavedra, J. A. ^{[171
,176
,177
]}

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

Ahmadov, F. ^{[98
,250
]}

Aielli, G. ^{[185
,186
]}

Akatsuka, S. ^{[101
]}

Akerstedt, H. ^{[207
,208
]}

Akesson, T. P. A. ^{[120
]}

Akilli, E. ^{[77
]}

Akimov, A. V. ^{[136
]}

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

Albert, J. ^{[238
]}

Albicocco, R. ^{[75
]}

Verzini, M. J. Alconada ^{[105
,106
]}

Alderweireldt, S. C. ^{[148
]}

Aleksa, M. ^{[48
]}

Aleksandrov, I. N. ^{[98
]}

Alexa, C. ^{[41
]}

Alexander, G. ^{[215
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[156
]}

Ali, B. ^{[179
]}

Aliev, M. ^{[108
,109
]}

Alimonti, G. ^{[131
]}

Alison, J. ^{[49
]}

Alkire, S. P. ^{[60
]}

Allbrooke, B. M. M. ^{[211
]}

Allen, B. W. ^{[159
]}

Allport, Rr ^{[24
]}

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, Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

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

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

[8] Univ Savoie Mt Blanc, Annecy Le Vieux, France

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

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

[11] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA

[12] Natl & Kapodistrian Univ Athens, Dept Phys, Athens, Greece

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

[14] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

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

[16] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Barcelona, Spain

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

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

[19] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA USA

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

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

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

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

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

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

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

[27] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[28] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[29] Univ Antonio Narino, Ctr Invest, Bogota, Colombia

[30] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

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

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

[33] Boston Univ, Dept Phys, 590 Commonwealth Ave, 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] Fed Univ Juiz de Fora UFJF, 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, Sao Paulo, Brazil

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

[40] Transilvania Univ Brasov, Brasov, Romania

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

[42] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania

[43] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania

[44] West Univ Timisoara, Timisoara, Romania

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

[46] Univ Cambridge, Cavendish Lab, Cambridge, England

[47] Carleton Univ, Dept Phys, Ottawa, ON, Canada

[48] CERN, Geneva, Switzerland

[49] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA

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

来源：

PHYSICS LETTERS B | 2017年 / 775卷

基金：

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

关键词：

PARTON DISTRIBUTIONS; PLUS PLUS;

D O I：

10.1016/j.physletb.2017.10.040

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cross-section for the production of two jets in association with a leptonically decaying Z boson (Zjj) is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV, using data recorded with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 3.2 fb(-1). The electroweak Zjj cross-section is extracted in a fiducial region chosen to enhance the electroweak contribution relative to the dominant Drell-Yan Zjj process, which is constrained using a data-driven approach. The measured fiducial electroweak cross-section is sigma(Zjj)(EW) = 119 +/- 16 (stat.) +/- 20 (syst.) +/- 2 (lumi.) fb for dijet invariant mass greater than 250 GeV, and 34.2 +/- 5.8 (stat.) +/- 5.5 (syst.) +/- 0.7 (lumi.) fb for dijet invariant mass greater than 1 TeV. Standard Model predictions are in agreement with the measurements. The inclusive Zjj cross-section is also measured in six different fiducial regions with varying contributions from electroweak and Drell-Yan Zjj production. (C) 2017 The Author(s). Published by Elsevier B.V.

引用

页码：206 / 228

页数：23

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