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

ATLAS Collaboration

doi:10.1140/epjc/s10052-020-08730-0

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

ATLAS Collaboration

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

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.

Original language	English
Article number	11
Pages (from-to)	1-29
Number of pages	29
Journal	European Physical Journal C
Volume	81
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-020-08730-0
Publication status	Published - Jan 2021
Externally published	Yes

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

An erratum exists for this article and can be found in The European Physical Journal C, 81(3), 249, doi: 10.1140/epjc/s10052-021-08970-8

Access to Document

10.1140/epjc/s10052-020-08730-0Licence: CC BY

Publisher version (open access)Final published version, 2.06 MBLicence: CC BY

Cite this

@article{46e2fcb482bb403395fb466df6a66b37,

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

abstract = "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.",

author = "{ATLAS Collaboration} and G. Aad and B. Abbott and Abbott, {D. C.} and Abud, {A. Abed} and K. Abeling and Abhayasinghe, {D. K.} and Abidi, {S. H.} and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and B. Achkar and L. Adam and Bourdarios, {C. Adam} and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agapopoulou and Agaras, {M. N.} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and A. Ahmad and F. Ahmadov and Ahmed, {W. S.} and X. Ai and G. Aielli and S. Akatsuka and M. Akbiyik and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and Khoury, {K. Al} and Alberghi, {G. L.} and J. Albert and Verzini, {M. J.Alconada} and S. Alderweireldt and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and T. Alexopoulos and A. Alfonsi and F. Alfonsi and M. Alhroob and B. Ali and S. Ali and M. Aliev and G. Alimonti and C. Allaire and Allbrooke, {B. M.M.} and Allen, {B. W.} and Allport, {P. P.} and A. Aloisio and F. Alonso and C. Alpigiani and Camelia, {E. Alunno} and Estevez, {M. Alvarez} and Alviggi, {M. G.} and Coutinho, {Y. Amaral} and A. Ambler and L. Ambroz and C. Amelung and D. Amidei and Santos, {S. P.Amor Dos} and S. Amoroso and Amrouche, {C. S.} and F. An and C. Anastopoulos and N. Andari and T. Andeen and Anders, {J. K.} and Andrean, {S. Y.} and A. Andreazza and V. Andrei and Anelli, {C. R.} and S. Angelidakis and A. Angerami and Anisenkov, {A. V.} and A. Annovi and C. Antel and Anthony, {M. T.} and E. Antipov and M. Antonelli and Antrim, {D. J.A.} and F. Anulli and M. Aoki and Pozo, {J. A.Aparisi} and Aparo, {M. A.} and Bella, {L. Aperio} and N. Aranzabal and Ferraz, {V. Araujo} and Pereira, {R. Araujo} and C. Arcangeletti and Arce, {A. T.H.} and Arduh, {F. A.} and Arguin, {J. F.} and S. Argyropoulos and Arling, {J. H.} and Armbruster, {A. J.} and A. Armstrong and O. Arnaez and H. Arnold and Tame, {Z. P.Arrubarrena} and G. Artoni and H. Asada and K. Asai and S. Asai and T. Asawatavonvanich and N. Asbah and Asimakopoulou, {E. M.} and L. Asquith and J. Assahsah and K. Assamagan and R. Astalos and Atkin, {R. J.} and M. Atkinson and Atlay, {N. B.} and H. Atmani and K. Augsten and Austrup, {V. A.} and G. Avolio and Ayoub, {M. K.} and G. Azuelos and H. Bachacou and K. Bachas and F. Backman and P. Bagnaia and M. Bahmani and H. Bahrasemani and Bailey, {A. J.} and Bailey, {V. R.} and Baines, {J. T.} and C. Bakalis and Baker, {O. K.} and Bakker, {P. J.} and E. Bakos and Gupta, {D. Bakshi} and S. Balaji and R. Balasubramanian and Baldin, {E. M.} and P. Balek and F. Balli and Balunas, {W. K.} and J. Balz and E. Banas and M. Bandieramonte and A. Bandyopadhyay and Sw Banerjee and L. Barak and Barbe, {W. M.} and Barberio, {E. L.} and D. Barberis and M. Barbero and G. Barbour and T. Barillari and Barisits, {M. S.} and J. Barkeloo and T. Barklow and R. Barnea and Barnett, {B. M.} and Barnett, {R. M.} and Z. Barnovska-Blenessy and A. Baroncelli and G. Barone and Barr, {A. J.} and Navarro, {L. Barranco} and F. Barreiro and {da Costa}, {J. Barreiro Guimar{\~a}es} and U. Barron and S. Barsov and F. Bartels and R. Bartoldus and G. Bartolini and Barton, {A. E.} and P. Bartos and A. Basalaev and A. Basan and A. Bassalat and Basso, {M. J.} and Bates, {R. L.} and S. Batlamous and Batley, {J. R.} and B. Batool and M. Battaglia and M. Bauce and F. Bauer and P. Bauer and Bawa, {H. S.} and A. Bayirli and Beacham, {J. B.} and T. Beau and Beauchemin, {P. H.} and F. Becherer and P. Bechtle and Beck, {H. C.} and Beck, {H. P.} and K. Becker and C. Becot and Beddall, {A. J.} and Beddall, {A. J.} and Bednyakov, {V. A.} and M. Bedognetti and Bee, {C. P.} and Beermann, {T. A.} and M. Begalli and M. Begel and A. Behera and Behr, {J. K.} and F. Beisiegel and M. Belfkir and Bell, {A. S.} and G. Bella and L. Bellagamba and A. Bellerive and P. Bellos and K. Beloborodov and K. Belotskiy and Belyaev, {N. L.} and D. Benchekroun and N. Benekos and Y. Benhammou and Benjamin, {D. P.} and M. Benoit and Bensinger, {J. R.} and S. Bentvelsen and L. Beresford and M. Beretta and D. Berge and Kuutmann, {E. Bergeaas} and N. Berger and B. Bergmann and Bergsten, {L. J.} and J. Beringer and S. Berlendis and G. Bernardi and C. Bernius and Bernlochner, {F. U.} and T. Berry and P. Berta and A. Berthold and Bertram, {I. A.} and J. Shojaii",

note = "Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher. An erratum exists for this article and can be found in The European Physical Journal C, 81(3), 249, doi: 10.1140/epjc/s10052-021-08970-8",

year = "2021",

month = jan,

doi = "10.1140/epjc/s10052-020-08730-0",

language = "English",

volume = "81",

pages = "1--29",

journal = "European Physical Journal C",

issn = "1434-6052",

publisher = "Springer, Springer Nature",

number = "1",

}

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 - 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 - Alfonsi, A.

AU - Alfonsi, F.

AU - Alhroob, M.

AU - Ali, B.

AU - Ali, S.

AU - Aliev, M.

AU - Alimonti, G.

AU - Allaire, C.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, F.

AU - Alpigiani, C.

AU - Camelia, E. Alunno

AU - Estevez, M. Alvarez

AU - Alviggi, M. G.

AU - Coutinho, Y. Amaral

AU - Ambler, A.

AU - Ambroz, L.

AU - Amelung, C.

AU - Amidei, D.

AU - Santos, S. P.Amor Dos

AU - Amoroso, S.

AU - Amrouche, C. S.

AU - An, F.

AU - Anastopoulos, C.

AU - Andari, N.

AU - Andeen, T.

AU - Anders, J. K.

AU - Andrean, S. Y.

AU - Andreazza, A.

AU - Andrei, V.

AU - Anelli, C. R.

AU - Angelidakis, S.

AU - Angerami, A.

AU - Anisenkov, A. V.

AU - Annovi, A.

AU - Antel, C.

AU - Anthony, M. T.

AU - Antipov, E.

AU - Antonelli, M.

AU - Antrim, D. J.A.

AU - Anulli, F.

AU - Aoki, M.

AU - Pozo, J. A.Aparisi

AU - Aparo, M. A.

AU - Bella, L. Aperio

AU - Aranzabal, N.

AU - Ferraz, V. Araujo

AU - Pereira, R. Araujo

AU - Arcangeletti, C.

AU - Arce, A. T.H.

AU - Arduh, F. A.

AU - Arguin, J. F.

AU - Argyropoulos, S.

AU - Arling, J. H.

AU - Armbruster, A. J.

AU - Armstrong, A.

AU - Arnaez, O.

AU - Arnold, H.

AU - Tame, Z. P.Arrubarrena

AU - Artoni, G.

AU - Asada, H.

AU - Asai, K.

AU - Asai, S.

AU - Asawatavonvanich, T.

AU - Asbah, N.

AU - Asimakopoulou, E. M.

AU - Asquith, L.

AU - Assahsah, J.

AU - Assamagan, K.

AU - Astalos, R.

AU - Atkin, R. J.

AU - Atkinson, M.

AU - Atlay, N. B.

AU - Atmani, H.

AU - Augsten, K.

AU - Austrup, V. A.

AU - Avolio, G.

AU - Ayoub, M. K.

AU - Azuelos, G.

AU - Bachacou, H.

AU - Bachas, K.

AU - Backman, F.

AU - Bagnaia, P.

AU - Bahmani, M.

AU - Bahrasemani, H.

AU - Bailey, A. J.

AU - Bailey, V. R.

AU - Baines, J. T.

AU - Bakalis, C.

AU - Baker, O. K.

AU - Bakker, P. J.

AU - Bakos, E.

AU - Gupta, D. Bakshi

AU - Balaji, S.

AU - Balasubramanian, R.

AU - Baldin, E. M.

AU - Balek, P.

AU - Balli, F.

AU - Balunas, W. K.

AU - Balz, J.

AU - Banas, E.

AU - Bandieramonte, M.

AU - Bandyopadhyay, A.

AU - Banerjee, Sw

AU - Barak, L.

AU - Barbe, W. M.

AU - Barberio, E. L.

AU - Barberis, D.

AU - Barbero, M.

AU - Barbour, G.

AU - Barillari, T.

AU - Barisits, M. S.

AU - Barkeloo, J.

AU - Barklow, T.

AU - Barnea, R.

AU - Barnett, B. M.

AU - Barnett, R. M.

AU - Barnovska-Blenessy, Z.

AU - Baroncelli, A.

AU - Barone, G.

AU - Barr, A. J.

AU - Navarro, L. Barranco

AU - Barreiro, F.

AU - da Costa, J. Barreiro Guimarães

AU - Barron, U.

AU - Barsov, S.

AU - Bartels, F.

AU - Bartoldus, R.

AU - Bartolini, G.

AU - Barton, A. E.

AU - Bartos, P.

AU - Basalaev, A.

AU - Basan, A.

AU - Bassalat, A.

AU - Basso, M. J.

AU - Bates, R. L.

AU - Batlamous, S.

AU - Batley, J. R.

AU - Batool, B.

AU - Battaglia, M.

AU - Bauce, M.

AU - Bauer, F.

AU - Bauer, P.

AU - Bawa, H. S.

AU - Bayirli, A.

AU - Beacham, J. B.

AU - Beau, T.

AU - Beauchemin, P. H.

AU - Becherer, F.

AU - Bechtle, P.

AU - Beck, H. C.

AU - Beck, H. P.

AU - Becker, K.

AU - Becot, C.

AU - Beddall, A. J.

AU - Bednyakov, V. A.

AU - Bedognetti, M.

AU - Bee, C. P.

AU - Beermann, T. A.

AU - Begalli, M.

AU - Begel, M.

AU - Behera, A.

AU - Behr, J. K.

AU - Beisiegel, F.

AU - Belfkir, M.

AU - Bell, A. S.

AU - Bella, G.

AU - Bellagamba, L.

AU - Bellerive, A.

AU - Bellos, P.

AU - Beloborodov, K.

AU - Belotskiy, K.

AU - Belyaev, N. L.

AU - Benchekroun, D.

AU - Benekos, N.

AU - Benhammou, Y.

AU - Benjamin, D. P.

AU - Benoit, M.

AU - Bensinger, J. R.

AU - Bentvelsen, S.

AU - Beresford, L.

AU - Beretta, M.

AU - Berge, D.

AU - Kuutmann, E. Bergeaas

AU - Berger, N.

AU - Bergmann, B.

AU - Bergsten, L. J.

AU - Beringer, J.

AU - Berlendis, S.

AU - Bernardi, G.

AU - Bernius, C.

AU - Bernlochner, F. U.

AU - Berry, T.

AU - Berta, P.

AU - Berthold, A.

AU - Bertram, I. A.

AU - Shojaii, J.

N1 - Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher. An erratum exists for this article and can be found in The European Physical Journal C, 81(3), 249, doi: 10.1140/epjc/s10052-021-08970-8

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 - https://doi.org/10.1140/epjc/s10052-021-08970-8

UR - http://www.scopus.com/inward/record.url?scp=85099078791&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/record.url?scp=85103061497&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-020-08730-0

DO - 10.1140/epjc/s10052-020-08730-0

M3 - Article

AN - SCOPUS:85099078791

SN - 1434-6052

VL - 81

SP - 1

EP - 29

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

M1 - 11

ER -

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

Abstract

Bibliographical note

Access to Document

Other files and links

Cite this