Test of Lepton Flavor Universality with Bs0 →φℓ+ℓ- Decays

LHCb Collaboration; Míriam Calvo Gómez

doi:10.1103/PhysRevLett.134.121803

Test of Lepton Flavor Universality with Bs0 →φℓ+ℓ- Decays

LHCb Collaboration
, Míriam Calvo Gómez

Producció científica: Article en revista indexada › Article › Avaluat per experts

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Resum

Lepton flavor universality in rare b→s transitions is tested for the first time using Bs0 meson decays. The measurements are performed using pp collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9 fb-1. Branching fraction ratios between the Bs0→φe+e- and Bs0→φμ+μ- decays are measured in three regions of dilepton mass squared, q2, with 0.1<q2<1.1, 1.1<q2<6.0, and 15<q2<19 GeV2/c4. The results agree with the standard model expectation of lepton flavor universality.

Idioma original	Anglès
Número d’article	121803
Nombre de pàgines	15
Revista	Physical Review Letters
Volum	134
Número	12
DOIs	https://doi.org/10.1103/PhysRevLett.134.121803
Estat de la publicació	Publicada - 28 de març 2025

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10.1103/PhysRevLett.134.121803Llicència: CC BY

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title = "Test of Lepton Flavor Universality with Bs0 →φℓ+ℓ- Decays",

abstract = "Lepton flavor universality in rare b→s transitions is tested for the first time using Bs0 meson decays. The measurements are performed using pp collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9 fb-1. Branching fraction ratios between the Bs0→φe+e- and Bs0→φμ+μ- decays are measured in three regions of dilepton mass squared, q2, with 0.1",

author = "\{LHCb Collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and Adefisoye, \{A. A.\} and B. Adeva and M. Adinolfi and P. Adlarson and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and A. Anelli and D. Ao and F. Archilli and M. Argenton and \{Arguedas Cuendis\}, S. and A. Artamonov and M. Artuso and E. Aslanides and \{Ata{\'i}de Da Silva\}, R. and M. Atzeni and B. Audurier and D. Bacher and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and E. Golobardes and \{Valls Canudas\}, N. and X. Vilasis-Cardona and \{Calvo G{\'o}mez\}, M{\'i}riam",

note = "Publisher Copyright: {\textcopyright} 2025 CERN, for the LHCb Collaboration. ",

year = "2025",

month = mar,

day = "28",

doi = "10.1103/PhysRevLett.134.121803",

language = "English",

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journal = "Physical Review Letters",

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AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adefisoye, A. A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Anelli, A.

AU - Ao, D.

AU - Archilli, F.

AU - Argenton, M.

AU - Arguedas Cuendis, S.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Ataíde Da Silva, R.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Golobardes, E.

AU - Valls Canudas, N.

AU - Vilasis-Cardona, X.

AU - Calvo Gómez, Míriam

PY - 2025/3/28

Y1 - 2025/3/28

N2 - Lepton flavor universality in rare b→s transitions is tested for the first time using Bs0 meson decays. The measurements are performed using pp collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9 fb-1. Branching fraction ratios between the Bs0→φe+e- and Bs0→φμ+μ- decays are measured in three regions of dilepton mass squared, q2, with 0.1

AB - Lepton flavor universality in rare b→s transitions is tested for the first time using Bs0 meson decays. The measurements are performed using pp collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9 fb-1. Branching fraction ratios between the Bs0→φe+e- and Bs0→φμ+μ- decays are measured in three regions of dilepton mass squared, q2, with 0.1

UR - https://www.scopus.com/pages/publications/105001812365

UR - http://hdl.handle.net/20.500.14342/5823

U2 - 10.1103/PhysRevLett.134.121803

DO - 10.1103/PhysRevLett.134.121803

M3 - Article

AN - SCOPUS:105001812365

SN - 0031-9007

VL - 134

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 121803

ER -

Test of Lepton Flavor Universality with Bs0 →φℓ+ℓ- Decays

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