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Search for new phenomena in pp collisions in final states with tau leptons, b-jets, and missing transverse momentum with the ATLAS detector

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ATLAS Collaboration (Including: Becker, K., Facini, Gabriel, Harrison, P. F., Jones, E., Martin, T. A., Morgenstern, S., Murray, W. J., Roberts, B. A., Spangenberg, Martin and Vladimirov, V. E.). (2021) Search for new phenomena in pp collisions in final states with tau leptons, b-jets, and missing transverse momentum with the ATLAS detector. Physical Review D (Particles, Fields, Gravitation and Cosmology), 104 (11). 112005 . doi:10.1103/PhysRevD.104.112005 ISSN 1550-7998.

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Official URL: https://doi.org/10.1103/PhysRevD.104.112005

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Abstract

A search for new phenomena in final states with hadronically decaying tau leptons,
b
-jets, and missing transverse momentum is presented. The analyzed dataset comprises
p
p
collision data at a center-of-mass energy of
√
s
=
13
 
 
TeV
with an integrated luminosity of
139
 
 
fb
−
1
, delivered by the Large Hadron Collider and recorded with the ATLAS detector from 2015 to 2018. The observed data are compatible with the expected Standard Model background. The results are interpreted in simplified models for two different scenarios. The first model is based on supersymmetry and considers pair production of top squarks, each of which decays into a
b
-quark, a neutrino and a tau slepton. Each tau slepton in turn decays into a tau lepton and a nearly massless gravitino. Within this model, top-squark masses up to 1.4 TeV can be excluded at the 95% confidence level over a wide range of tau-slepton masses. The second model considers pair production of leptoquarks with decays into third-generation leptons and quarks. Depending on the branching fraction into charged leptons, leptoquarks with masses up to around 1.25 TeV can be excluded at the 95% confidence level for the case of scalar leptoquarks and up to 1.8 TeV (1.5 TeV) for vector leptoquarks in a Yang–Mills (minimal-coupling) scenario. In addition, model-independent upper limits are set on the cross section of processes beyond the Standard Model

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Jets (Nuclear physics), Leptons (Nuclear physics), Collisions (Nuclear physics), Supersymmetry , Large Hadron Collider (France and Switzerland)
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: 21 December 2021
Dates:
DateEvent
21 December 2021Published
8 September 2021Accepted
Volume: 104
Number: 11
Article Number: 112005
DOI: 10.1103/PhysRevD.104.112005
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 10 February 2022
Date of first compliant Open Access: 11 February 2022
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDCERN http://dx.doi.org/10.13039/100012470
UNSPECIFIEDAgencia Nacional de Promoción Científica y Tecnológicahttp://dx.doi.org/10.13039/501100003074
UNSPECIFIEDA.I. Alikhanyan National Science Laboratoryhttps://www.yerphi.am/
UNSPECIFIEDAustralian Research Councilhttp://dx.doi.org/10.13039/501100000923
UNSPECIFIEDBundesministerium für Bildung, Wissenschaft und Forschunghttp://dx.doi.org/10.13039/501100013699
UNSPECIFIEDAustrian Science Fundhttp://dx.doi.org/10.13039/501100002428
UNSPECIFIEDAzərbaycan Milli Elmlər Akademiyasıhttps://science.gov.az/
UNSPECIFIEDState Science and Technology Committeehttps://www.gknt.gov.by/
UNSPECIFIEDConselho Nacional de Desenvolvimento Científico e Tecnológicohttp://dx.doi.org/10.13039/501100003593
UNSPECIFIEDFundação de Amparo à Pesquisa do Estado de São Paulohttps://doi.org/10.13039/501100001807
UNSPECIFIED[NSERC] Natural Sciences and Engineering Research Council of Canadahttp://dx.doi.org/10.13039/501100000038
UNSPECIFIED[NRC] National Research Council Canadahttp://dx.doi.org/10.13039/501100000046
UNSPECIFIED[CFI] Canada Foundation for Innovationhttp://dx.doi.org/10.13039/501100000196
UNSPECIFIEDAgencia Nacional de Investigación e Innovaciónhttp://dx.doi.org/10.13039/100008725
UNSPECIFIEDChinese Academy of Scienceshttps://english.cas.cn/
UNSPECIFIED[MSTPRC] Ministry of Science and Technology of the People's Republic of Chinahttp://dx.doi.org/10.13039/501100002855
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDMinisterio de Ciencia, Tecnología e Innovación Productivahttp://dx.doi.org/10.13039/501100003033
UNSPECIFIEDMinisterstvo Školství, Mládeže a Tělovýchovyhttp://dx.doi.org/10.13039/501100001823
UNSPECIFIEDMinisterstvo Průmyslu a Obchoduhttp://dx.doi.org/10.13039/501100004578
UNSPECIFIEDDanmarks Grundforskningsfondhttp://dx.doi.org/10.13039/501100001732
UNSPECIFIEDNatur og Univers, Det Frie ForskningsrådUNSPECIFIED
UNSPECIFIEDShota Rustaveli National Science Foundation of Georgiahttps://rustaveli.org.ge/eng
UNSPECIFIEDBundesministerium für Bildung und Forschunghttp://dx.doi.org/10.13039/501100002347
UNSPECIFIEDGSRIhttps://gsri.gov.gr/
UNSPECIFIEDResearch Grants Council, University Grants Committeehttp://dx.doi.org/10.13039/501100002920
UNSPECIFIEDIsrael Science Foundationhttp://dx.doi.org/10.13039/501100003977
UNSPECIFIEDNella and Leon Benoziyo Center for Astrophysicsforhttps://centers.weizmann.ac.il/AstroCenter/
UNSPECIFIED[INFN] Instituto Nazionale di Fisica Nuclearehttp://dx.doi.org/10.13039/501100004007
UNSPECIFIED[MEXT] Ministry of Education, Culture, Sports, Science and Technologyhttp://dx.doi.org/10.13039/501100001700
UNSPECIFIED[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
UNSPECIFIEDCentre National pour la Recherche Scientifique et Techniquehttp://dx.doi.org/10.13039/501100006319
UNSPECIFIED[NWO] Nederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246
UNSPECIFIEDResearch Council of Norwayhttps://www.forskningsradet.no/en/
UNSPECIFIEDMinisterstwo Nauki i Szkolnictwa Wyższegohttp://dx.doi.org/10.13039/501100004569
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDFundação para a Ciência e a TecnologiaJINRUNSPECIFIED
UNSPECIFIEDJoint Institute for Nuclear Researchhttp://dx.doi.org/10.13039/501100003822
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDNational Research Center "Kurchatov Institute"http://dx.doi.org/10.13039/501100013400
UNSPECIFIEDMinistarstvo Prosvete, Nauke i Tehnološkog Razvojahttp://dx.doi.org/10.13039/501100004564
UNSPECIFIEDMinisterstvo spravodlivosti SR Račianska https://www.justice.gov.sk/Stranky/default.aspx
UNSPECIFIEDJavna Agencija za Raziskovalno Dejavnost RShttp://dx.doi.org/10.13039/501100004329
UNSPECIFIEDSlovenia.‏ ‎Ministrstvo za šolstvo, znanost in športhttp://viaf.org/viaf/315533861
UNSPECIFIEDTürkiye Atom Enerjisi KurumuUNSPECIFIED
UNSPECIFIEDMinisterio de Ciencia e Innovaciónhttp://dx.doi.org/10.13039/501100004837
UNSPECIFIEDStockholm Resilience Centrehttp://viaf.org/viaf/310734079
UNSPECIFIEDMarianne and Marcus Wallenberg Foundationhttp://dx.doi.org/10.13039/501100011898
UNSPECIFIED[SERI] Staatssekretariat für Bildung, Forschung und Innovationhttp://dx.doi.org/10.13039/501100007352
UNSPECIFIED[SNSF] Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschunghttp://dx.doi.org/10.13039/501100001711
UNSPECIFIEDFiducie de Recherche sur la Foret des Cantons-de-l'Esthttp://dx.doi.org/10.13039/501100005267
UNSPECIFIEDMinistry of Science and Technology, Taiwanhttp://dx.doi.org/10.13039/501100004663
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIEDU.S. Department of Energyhttp://dx.doi.org/10.13039/100000015
UNSPECIFIED[NSF] National Science Foundation (US)http://dx.doi.org/10.13039/100000001
UNSPECIFIED[ERDF] European Regional Development Fundhttp://dx.doi.org/10.13039/501100008530
UNSPECIFIEDHorizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
UNSPECIFIEDH2020 Marie Skłodowska-Curie Actionshttp://dx.doi.org/10.13039/100010665
UNSPECIFIEDEuropean Research Councilhttp://dx.doi.org/10.13039/501100000781
UNSPECIFIEDRoyal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
UNSPECIFIED[CNRS] Centre National de la Recherche Scientifiquehttp://dx.doi.org/10.13039/501100004794
UNSPECIFIED[IN2P3] Institut national de physique nucléaire et de physique des particuleshttp://viaf.org/viaf/137207166
UNSPECIFIEDMinisterul Educatiei Nationalehttps://doi.org/10.13039/501100003766
UNSPECIFIEDInstitutul de Fizică Atomicăhttp://viaf.org/viaf/154740159
UNSPECIFIEDDirection des applications militaireshttp://dx.doi.org/10.13039/501100011761
UNSPECIFIEDDepartment of Science and Innovation, South AfricaUNSPECIFIED
UNSPECIFIEDNational Research Foundationhttp://dx.doi.org/10.13039/501100001321

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