Study of the rare decays of B                         s                         0                          and B                          0                          mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP04(2019)098

Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector

The ATLAS collaboration

School of Physics and Astronomy

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

139 Scopus citations

Abstract

A study of the decays B _s ⁰ → μ ⁺ μ ⁻ and B ⁰ → μ ⁺ μ ⁻ has been performed using 26.3 fb ⁻¹ of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. Since the detector resolution in μ ⁺ μ ⁻ invariant mass is comparable to the B _s ⁰ -B ⁰ mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction ℬ(Bs0→μ+μ−)=(3.2−1.0+1.1)×10−9 and an upper limit ℬ (B→ μ ⁺ μ ⁻ ) < 4.3 × 10 ^{− 10} at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding ℬ(Bs0→μ+μ−)=(2.8−0.7+0.8)×10−9 and ℬ (B→ μ ⁺ μ ⁻ ) < 2.1 × 10 ^{− 10} at 95% confidence level. The combined result is consistent with the Standard Model prediction within 2.4 standard deviations in the ℬ(B0→μ+μ−)−ℬ(Bs0→μ+μ−) plane.[Figure not available: see fulltext.]

Original language	English
Article number	98
Journal	Journal of High Energy Physics
Volume	2019
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2019)098
State	Published - 1 Apr 2019

Funding

Funders	Funder number
AvH Foundation
BSF-NSF
Benoziyo Center, Israel
CEA-DRF/IRFU
Cantons of Bern and Geneva
DNSRC	IN2P3-CNRS
DST/NRF
EU-ESF
Horizon 2020, and Marie Sklo dowska-Curie Actions
MES of Russia
MESTD
MNE/IFA
MSMT
MSSR
RGC
VSC CR
National Science Foundation
U.S. Department of Energy
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Arizona-Nevada Academy of Science
CERN
National Research Council
College of Arts and Sciences, University of Nebraska-Lincoln
Glycemic Index Foundation
Natural Sciences and Engineering Research Council of Canada
Science and Technology Facilities Council
Leverhulme Trust
Royal Society
European Research Council
European Cooperation in Science and Technology
Australian Research Council
Singapore Eye Research Institute
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Danmarks Grundforskningsfond
Canada Foundation for Innovation
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Austrian Science Fund
Agencia Nacional de Investigación y Desarrollo
Agencia Nacional de Promoción Científica y Tecnológica
Ministerstvo Zdravotnictví Ceské Republiky
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Economía y Competitividad
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science and Technology
Joint Institute for Nuclear Research
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Nauki i Szkolnictwa Wyższego
Centre National pour la Recherche Scientifique et Technique
British Columbia Knowledge Development Fund
European Regional Development Fund
Institut Nacional d'Educacio Fisica de Catalunya, Generalitat de Catalunya
Marianne and Marcus Wallenberg Foundation
National Research Center "Kurchatov Institute"
Ministry of Health of the Russian Federation

Keywords

Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP04(2019)098

Cite this

The ATLAS collaboration (2019). Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector Journal of High Energy Physics, 2019(4), Article 98. https://doi.org/10.1007/JHEP04(2019)098

The ATLAS collaboration. / Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector In: Journal of High Energy Physics. 2019 ; Vol. 2019, No. 4.

@article{6fa8cf06a3924854a4ceb324a860fcb7,

title = " Study of the rare decays of B s 0 and B 0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector ",

abstract = " A study of the decays B s 0 → μ + μ − and B 0 → μ + μ − has been performed using 26.3 fb −1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. Since the detector resolution in μ + μ − invariant mass is comparable to the B s 0 -B 0 mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction ℬ(Bs0→μ+μ−)=(3.2−1.0+1.1)×10−9 and an upper limit ℬ (B→ μ + μ − ) < 4.3 × 10 − 10 at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding ℬ(Bs0→μ+μ−)=(2.8−0.7+0.8)×10−9 and ℬ (B→ μ + μ − ) < 2.1 × 10 − 10 at 95% confidence level. The combined result is consistent with the Standard Model prediction within 2.4 standard deviations in the ℬ(B0→μ+μ−)−ℬ(Bs0→μ+μ−) plane.[Figure not available: see fulltext.]",

keywords = "Hadron-Hadron scattering (experiments)",

author = "{The ATLAS collaboration} and M. Aaboud and G. Aad and B. Abbott and Abbott, {D. C.} and O. Abdinov and B. Abeloos 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 S. Adachi and L. Adam and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and F. Ahmadov and G. Aielli and S. Akatsuka and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and P. Albicocco and {Alconada Verzini}, {M. J.} and S. Alderweireldt and L. Barak and G. Bella and Y. Benhammou and Biswal, {J. P.} and T. Cao and H. Cohen and E. Etzion and O. Kuprash and Lutz, {M. S.} and Y. Oren and M. Pitt and D. Reikher and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = apr,

day = "1",

doi = "10.1007/JHEP04(2019)098",

language = "אנגלית",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "4",

}

The ATLAS collaboration 2019, ' Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector ', Journal of High Energy Physics, vol. 2019, no. 4, 98. https://doi.org/10.1007/JHEP04(2019)098

Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector . / The ATLAS collaboration.
In: Journal of High Energy Physics, Vol. 2019, No. 4, 98, 01.04.2019.

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

TY - JOUR

T1 - Study of the rare decays of B s 0 and B 0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abdinov, O.

AU - Abeloos, B.

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 - Adachi, S.

AU - Adam, L.

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Biswal, J. P.

AU - Cao, T.

AU - Cohen, H.

AU - Etzion, E.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Oren, Y.

AU - Pitt, M.

AU - Reikher, D.

AU - Soffer, A.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - A study of the decays B s 0 → μ + μ − and B 0 → μ + μ − has been performed using 26.3 fb −1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. Since the detector resolution in μ + μ − invariant mass is comparable to the B s 0 -B 0 mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction ℬ(Bs0→μ+μ−)=(3.2−1.0+1.1)×10−9 and an upper limit ℬ (B→ μ + μ − ) < 4.3 × 10 − 10 at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding ℬ(Bs0→μ+μ−)=(2.8−0.7+0.8)×10−9 and ℬ (B→ μ + μ − ) < 2.1 × 10 − 10 at 95% confidence level. The combined result is consistent with the Standard Model prediction within 2.4 standard deviations in the ℬ(B0→μ+μ−)−ℬ(Bs0→μ+μ−) plane.[Figure not available: see fulltext.]

AB - A study of the decays B s 0 → μ + μ − and B 0 → μ + μ − has been performed using 26.3 fb −1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. Since the detector resolution in μ + μ − invariant mass is comparable to the B s 0 -B 0 mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction ℬ(Bs0→μ+μ−)=(3.2−1.0+1.1)×10−9 and an upper limit ℬ (B→ μ + μ − ) < 4.3 × 10 − 10 at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding ℬ(Bs0→μ+μ−)=(2.8−0.7+0.8)×10−9 and ℬ (B→ μ + μ − ) < 2.1 × 10 − 10 at 95% confidence level. The combined result is consistent with the Standard Model prediction within 2.4 standard deviations in the ℬ(B0→μ+μ−)−ℬ(Bs0→μ+μ−) plane.[Figure not available: see fulltext.]

KW - Hadron-Hadron scattering (experiments)

UR - http://www.scopus.com/inward/record.url?scp=85064541986&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2019)098

DO - 10.1007/JHEP04(2019)098

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85064541986

SN - 1126-6708

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 98

ER -

The ATLAS collaboration. Study of the rare decays of B _s ⁰ and B ⁰ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector Journal of High Energy Physics. 2019 Apr 1;2019(4):98. doi: 10.1007/JHEP04(2019)098