Search for the lepton-flavour violating decays B0 → K*0μ±e∓ and B0s → ϕμ±e∓

LHCb Collaboration; Simone Bifani; Ryan Calladine; Naomi Cooke; Jonathan Plews; Niladribihari Sahoo; Mark Slater; Paul Swallow; D. J. D. Thompson

doi:10.1007/JHEP06(2023)073

Search for the lepton-flavour violating decays B0 → K*0μ±e∓ and B0s → ϕμ±e∓

LHCb Collaboration
, Simone Bifani
, Ryan Calladine
, Naomi Cooke
, Jonathan Plews
, Niladribihari Sahoo
, Mark Slater
, Paul Swallow
, D. J. D. Thompson

Physics and Astronomy

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

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Abstract

A search for the lepton-flavour violating decays B0→K∗0μ±e∓ and B0s→ϕμ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9fb−1. No significant signals are observed and upper limits of

<5.7×10−9 (6.9×10−9),

are set at 90% (95%) confidence level. These results constitute the world's most stringent limits to date, with the limit on the decay B0s→ϕμ±e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.

Original language	English
Article number	73
Number of pages	25
Journal	JHEP
Volume	2023
DOIs	https://doi.org/10.1007/JHEP06(2023)073
Publication status	Published - 14 Jun 2023

Bibliographical note

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-008.html (LHCb public pages)

Keywords

hep-ex

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LHCb2023SearchFinal published version, 1.02 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Search for the lepton-flavour violating decays B0 → K*0μ±e∓ and B0s → ϕμ±e∓",

abstract = "A search for the lepton-flavour violating decays B0→K∗0μ±e∓ and B0s→ϕμ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9fb−1. No significant signals are observed and upper limits of<5.7×10−9 (6.9×10−9),are set at 90\% (95\%) confidence level. These results constitute the world's most stringent limits to date, with the limit on the decay B0s→ϕμ±e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.",

keywords = "hep-ex",

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note = "All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-008.html (LHCb public pages)",

year = "2023",

month = jun,

day = "14",

doi = "10.1007/JHEP06(2023)073",

language = "English",

volume = "2023",

journal = "JHEP",

issn = "1126-6708",

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TY - JOUR

T1 - Search for the lepton-flavour violating decays B0 → K*0μ±e∓ and B0s → ϕμ±e∓

AU - LHCb Collaboration

AU - Watson, Nigel

AU - Bifani, Simone

AU - Calladine, Ryan

AU - Cooke, Naomi

AU - Plews, Jonathan

AU - Sahoo, Niladribihari

AU - Slater, Mark

AU - Swallow, Paul

AU - Thompson, D. J. D.

N1 - All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-008.html (LHCb public pages)

PY - 2023/6/14

Y1 - 2023/6/14

N2 - A search for the lepton-flavour violating decays B0→K∗0μ±e∓ and B0s→ϕμ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9fb−1. No significant signals are observed and upper limits of<5.7×10−9 (6.9×10−9),are set at 90% (95%) confidence level. These results constitute the world's most stringent limits to date, with the limit on the decay B0s→ϕμ±e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.

AB - A search for the lepton-flavour violating decays B0→K∗0μ±e∓ and B0s→ϕμ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9fb−1. No significant signals are observed and upper limits of<5.7×10−9 (6.9×10−9),are set at 90% (95%) confidence level. These results constitute the world's most stringent limits to date, with the limit on the decay B0s→ϕμ±e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios.

KW - hep-ex

U2 - 10.1007/JHEP06(2023)073

DO - 10.1007/JHEP06(2023)073

M3 - Article

SN - 1126-6708

VL - 2023

JO - JHEP

JF - JHEP

M1 - 73

ER -

Search for the lepton-flavour violating decays B0 → K*0μ±e∓ and B0s → ϕμ±e∓

Abstract

Bibliographical note

Keywords

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