Measurement of the four-lepton invariant mass spectrum in 13 TeV proton-proton collisions with the ATLAS detector

被引：21

作者：

Aaboud, M. ^{[54
,55
]}

Aad, G. ^{[153
]}

Abbott, B. ^{[182
]}

Abdinov, O. ^{[18
]}

Abeloos, B. ^{[186
]}

Abhayasinghe, D. K. ^{[144
]}

Abidi, S. H. ^{[230
]}

AbouZeid, O. S. ^{[61
]}

Abraham, N. L. ^{[217
]}

Abramowicz, H. ^{[223
]}

Abreu, H. ^{[222
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[99
,100
,260
]}

Adachi, S. ^{[225
,226
]}

Adam, L. ^{[151
]}

Adamczyk, L. ^{[130
]}

Adelman, J. ^{[174
]}

Adersberger, M. ^{[166
]}

Adiguzel, A. ^{[16
,175
,176
,272
]}

Adye, T. ^{[203
]}

Affolder, A. A. ^{[209
]}

Afik, Y. ^{[222
]}

Agheorghiesei, C. ^{[40
]}

Aguilar-Saavedra, J. A. ^{[194
,199
,271
]}

Ahmadov, F. ^{[18
,123
]}

Aielli, G. ^{[114
,115
]}

Akatsuka, S. ^{[133
]}

Akesson, T. P. A. ^{[147
]}

Akilli, E. ^{[78
]}

Akimov, A. V. ^{[162
]}

Alberghi, G. L. ^{[33
,34
]}

Albert, J. ^{[241
]}

Albicocco, P. ^{[74
,75
]}

Alconada Verzini, M. J. ^{[137
,138
]}

Alderweireldt, S. ^{[172
]}

Aleksa, M. ^{[57
]}

Aleksandrov, I. N. ^{[123
]}

Alexa, C. ^{[39
]}

Alexandre, D. ^{[28
]}

Alexopoulos, T. ^{[12
]}

Alhroob, M. ^{[182
]}

Ali, B. ^{[201
]}

Alimonti, G. ^{[104
]}

Alison, J. ^{[58
]}

Alkire, S. P. ^{[208
]}

Allaire, C. ^{[186
]}

Allbrooke, B. M. M. ^{[217
]}

Allen, B. W. ^{[185
]}

Allport, P. P. ^{[31
]}

Aloisio, A. ^{[106
,107
]}

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] Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, LAPP,IN2P3, Annecy, France

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

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

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

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

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

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

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

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

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

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

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

[19] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain

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

[21] Tsinghua Univ, Phys Dept, Beijing, Peoples R China

[22] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

[23] UCAS, Beijing, Peoples R China

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

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

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

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

[28] Humboldt Univ, Inst Phys, Berlin, Germany

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

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

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

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

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

[34] INFN, Sez Bologna, Bologna, Italy

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

[36] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA

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

[38] Transilvania Univ Brasov, Brasov, Romania

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

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

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

[42] West Univ Timisoara, Timisoara, Romania

[43] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[44] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice, Slovakia

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

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

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

[48] Univ Cape Town, Dept Phys, Cape Town, South Africa

[49] Univ Johannesburg, Dept Mech Engn Sci, Johannesburg, South Africa

[50] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 04期

基金：

巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会; 欧盟地平线“2020”;

关键词：

Hadron-Hadron scattering (experiments); HIGGS-BOSON PRODUCTION; ZZ PRODUCTION; PP COLLISIONS; LHC; 4L; DISTRIBUTIONS; 2L2V;

D O I：

10.1007/JHEP04(2019)048

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 four-lepton invariant mass spectrum is made with the ATLAS detector, using an integrated luminosity of 36.1 fb(-1) of proton-proton collisions at root s = 13 TeV delivered by the Large Hadron Collider. The differential cross-section is measured for events containing two same-flavour opposite-sign lepton pairs. It exhibits a rich structure, with different mass regions dominated in the Standard Model by single Z boson production, Higgs boson production, and Z boson pair production, and non-negligible interference effects at high invariant masses. The measurement is compared with state-of-the-art Standard Model calculations, which are found to be consistent with the data. These calculations are used to interpret the data in terms of gg -> ZZ -> 4l and Z -> 4l subprocesses, and to place constraints on a possible contribution from physics beyond the Standard Model.

引用

页数：50

共 72 条

[51] Fully differential NNLO computations with MATRIX [J].