TY - JOUR
T1 - Search for phenomena beyond the Standard Model in events with large b-jet multiplicity using the ATLAS detector at the LHC
AU - The ATLAS collaboration
AU - Aad, G.
AU - Abbott, B.
AU - Abbott, D. C.
AU - Abud, A. Abed
AU - Abeling, K.
AU - Abhayasinghe, D. K.
AU - Abidi, S. H.
AU - AbouZeid, O. S.
AU - Abraham, N. L.
AU - Abramowicz, H.
AU - Abreu, H.
AU - Abulaiti, Y.
AU - Acharya, B. S.
AU - Achkar, B.
AU - Adam, L.
AU - Bourdarios, C. Adam
AU - Adamczyk, L.
AU - Adamek, L.
AU - Adelman, J.
AU - Adersberger, M.
AU - Adiguzel, A.
AU - Adorni, S.
AU - Adye, T.
AU - Affolder, A. A.
AU - Afik, Y.
AU - Agapopoulou, C.
AU - Agaras, M. N.
AU - Aggarwal, A.
AU - Agheorghiesei, C.
AU - Aguilar-Saavedra, J. A.
AU - Ahmad, A.
AU - Ahmadov, F.
AU - Ahmed, W. S.
AU - Ai, X.
AU - Aielli, G.
AU - Akatsuka, S.
AU - Akbiyik, M.
AU - Åkesson, T. P.A.
AU - Akilli, E.
AU - Akimov, A. V.
AU - Khoury, K. Al
AU - Alberghi, G. L.
AU - Albert, J.
AU - Verzini, M. J.Alconada
AU - Alderweireldt, S.
AU - Aleksa, M.
AU - Aleksandrov, I. N.
AU - Alexa, C.
AU - Alexopoulos, T.
AU - Анисёнков, Алексей Владимирович
AU - Балдин, Евгений Михайлович
AU - Beloborodov, K.
AU - Бобровников, Виктор Сергеевич
AU - Bogdanchikov, A. G.
AU - Бузыкаев, Алексей Рафаилович
AU - Казанин, Василий Федорович
AU - Харламов, Алексей Георгиевич
AU - Харламова, Татьяна Александровна
AU - Масленников, Алексей Леонидович
AU - Максимов, Дмитрий Александрович
AU - Пелеганчук, Сергей Владимирович
AU - Подберёзко, Павел Сергеевич
AU - Резанова, Ольга Леонардовна
AU - Сухарев, Андрей Михайлович
AU - Талышев, Алексей Александрович
AU - Тихонов, Юрий Анатольевич
AU - Жуланов, Владимир Викторович
N1 - Funding Information:
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRT, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russia Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, Compute Canada and CRC, Canada; ERC, ERDF, Horizon 2020, Marie Skłodowska-Curie Actions and COST, European Union; Investissements d’Avenir Labex, Investissements d’Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Göran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom.
Publisher Copyright:
© 2021, The Author(s).
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - 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 = 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.
AB - 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 = 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.
UR - http://www.scopus.com/inward/record.url?scp=85099078791&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-020-08730-0
DO - 10.1140/epjc/s10052-020-08730-0
M3 - Article
AN - SCOPUS:85099078791
VL - 81
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 1
M1 - 11
ER -