Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC

被引：29

作者：

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

Aad, G. ^{[153
]}

Abbott, B. ^{[183
]}

Abdinov, O. ^{[18
]}

Abeloos, B. ^{[187
]}

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

Abidi, S. H. ^{[232
]}

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

Abraham, N. L. ^{[219
]}

Abramowicz, H. ^{[225
]}

Abreu, H. ^{[224
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[100
,101
,261
]}

Adachi, S. ^{[24
]}

Adamczyk, L. ^{[130
]}

Adelman, J. ^{[175
]}

Adersberger, M. ^{[166
]}

Adiguzel, A. ^{[16
,77
,100
,119
,176
,177
,190
,238
,241
,273
]}

Adye, T. ^{[204
]}

Affolder, A. A. ^{[206
]}

Afik, Y. ^{[224
]}

Agheorghiesei, C. ^{[40
]}

Aguilar-Saavedra, J. A. ^{[195
,200
,272
]}

Ahmadov, F. ^{[18
,124
]}

Aielli, G. ^{[115
,116
]}

Akatsuka, S. ^{[133
]}

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

Akilli, E. ^{[78
]}

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

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

Albert, J. ^{[243
]}

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

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

Alderweireldt, S. ^{[172
]}

Aleksa, M. ^{[57
]}

Aleksandrov, I. N. ^{[124
]}

Alexa, C. ^{[39
]}

Alexopoulos, T. ^{[12
]}

Alhroob, M. ^{[183
]}

Ali, B. ^{[202
]}

Alimonti, G. ^{[105
]}

Alison, J. ^{[58
]}

Alkire, S. P. ^{[210
]}

Allaire, C. ^{[187
]}

Allbrooke, B. M. M. ^{[219
]}

Allen, B. W. ^{[186
]}

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

Aloisio, A. ^{[107
,108
]}

Alonso, A. ^{[61
]}

Alonso, F. ^{[137
,138
]}

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 Engn Phys, 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：

EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 01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：

PARTON DISTRIBUTIONS; PAIR PRODUCTION; PLUS PLUS;

D O I：

10.1140/epjc/s10052-020-08730-0

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 search is presented for new phenomena in events characterised by high jet multiplicity, no leptons (electrons or muons), and four or more jets originating from the fragmentation of b-quarks (b-jets). The search uses 139fb(-1)of s root = 13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider during Run 2. The dominant Standard Model background originates from multijet production and is estimated using a data-driven technique based on an extrapolation from events with low b-jet multiplicity to the high b-jet multiplicities used in the search. No significant excess over the Standard Model expectation is observed and 95% confidence-level limits that constrain simplified models of R-parity-violating supersymmetry are determined. The exclusion limits reach 950 GeV in top-squark mass in the models considered.

引用

页数：29

共 68 条

[1]

Aad G, 2019, EUR PHYS J C, V79, DOI 10.1140/epjc/s10052-019-7450-8

[2]

Aad G, 2016, EUR PHYS J C, V76, DOI 10.1140/epjc/s10052-016-4395-z

[3]

Aad G, 2016, EUR PHYS J C, V76, DOI 10.1140/epjc/s10052-016-4120-y

[4] Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Adelman, J. ;

Adomeit, S. ;

Adye, T. ;

Agatonovic-Jovin, T. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akerstedt, H. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albrand, S. ;

Verzini, M. J. Alconada ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Alimonti, G. ;

Alio, L. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Almond, J. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

EUROPEAN PHYSICAL JOURNAL C, 2014, 74 (10) :1-48

[5] The ATLAS Simulation Infrastructure [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdelalim, A. A. ;

Abdesselam, A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adorisio, C. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahmed, H. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. ;

Akimoto, G. ;

Akimov, A. V. ;

Aktas, A. ;

Alam, M. S. ;

Alam, M. A. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Aliyev, M. ;

Allport, P. P. ;

Allwood-Spiers, S. E. ;

Almond, J. ;

Aloisio, A. ;

Alon, R. .

EUROPEAN PHYSICAL JOURNAL C, 2010, 70 (03) :823-874

[6] Production and integration of the ATLAS Insertable B-Layer [J].

Abbott, B. ;

Albert, J. ;

Alberti, F. ;

Alex, M. ;

Alimonti, G. ;

Alkire, S. ;

Allport, P. ;

Altenheiner, S. ;

Ancu, L. S. ;

Anderssen, E. ;

Andreani, A. ;

Andreazza, A. ;

Axen, B. ;

Arguin, J. ;

Backhaus, M. ;

Balbi, G. ;

Ballansat, J. ;

Barbero, M. ;

Barbier, G. ;

Bassalat, A. ;

Bates, R. ;

Baudin, P. ;

Battaglia, M. ;

Beau, T. ;

Beccherle, R. ;

Bell, A. ;

Benoit, M. ;

Bermgan, A. ;

Bertsche, C. ;

Bertsche, D. ;

de Mendizabal, J. Bilbao ;

Bindi, F. ;

Bomben, M. ;

Borri, M. ;

Bortolin, C. ;

Bousson, N. ;

Boyd, R. G. ;

Breugnon, P. ;

Bruni, G. ;

Brossamer, J. ;

Bruschi, M. ;

Buchholz, P. ;

Budun, E. ;

Buttar, C. ;

Cadoux, F. ;

Calderini, G. ;

Caminada, L. ;

Capeans, M. ;

Carney, R. ;

Casse, G. .

JOURNAL OF INSTRUMENTATION, 2018, 13

[7] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[8] A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX [J].

Alioli, Simone ;

Nason, Paolo ;

Oleari, Carlo ;

Re, Emanuele .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (06)

[9] The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations [J].

Alwall, J. ;

Frederix, R. ;

Frixione, S. ;

Hirschi, V. ;

Maltoni, F. ;

Mattelaer, O. ;

Shao, H. -S. ;

Stelzer, T. ;

Torrielli, P. ;

Zaro, M. .

JOURNAL OF HIGH ENERGY PHYSICS, 2014, (07)

[10]

[Anonymous], 2016, ATLPHYSPUB2016017 CE

← 1 2 3 4 5 6 7 →