First observation of the 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay

LHCb collaboration; R.H. O'Neil; M. Richardson-Slipper; C. Vrahas

doi:10.1103/PhysRevD.108.034012

First observation of the 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay

LHCb collaboration
, R.H. O'Neil
, M. Richardson-Slipper
, C. Vrahas

School of Physics and Astronomy

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

Abstract

The 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. Its branching fraction relative to that of the 𝐵+→𝐷+⁢𝐷−⁢𝐾+ decay is measured to be ℬ⁡(𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+)ℬ⁡(𝐵+→𝐷+⁢𝐷−⁢𝐾+)=0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the 𝐷±𝑠→𝐾∓⁢𝐾±⁢𝜋± and 𝐷±→𝐾∓⁢𝜋±⁢𝜋± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored
¯𝑏→¯𝑐⁢𝑐⁢¯𝑠 transitions and opens the path for unique studies of spectroscopy in future.

Original language	English
Article number	034012
Pages (from-to)	1-14
Number of pages	14
Journal	Physical Review D
Volume	108
Issue number	3
Early online date	1 Aug 2023
DOIs	https://doi.org/10.1103/PhysRevD.108.034012
Publication status	Published - 14 Aug 2023

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10.1103/PhysRevD.108.034012Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2211.05034

LHCb Upgrade II: Maximising HL-LHC Discovery Potential
Muheim, F. (Principal Investigator)
1/10/21 → 30/09/24
Project: Research
LHCb Upgrade II: Maximising HL-LHC Discovery Potential (Bridging Funding)
Muheim, F. (Principal Investigator), Clarke, P. (Co-investigator), Gao, Y. (Co-investigator), Needham, M. (Co-investigator) & Williams, M. (Co-investigator)
UK central government bodies/local authorities, health and hospital authorities
1/10/20 → 30/09/21
Project: Research
LHCb Ugrade: Beyond the Energy Frontier
Playfer, S. (Principal Investigator), Clarke, P. (Co-investigator), Eisenhardt, S. (Co-investigator), Muheim, F. (Co-investigator) & Needham, M. (Co-investigator)
STFC
1/10/14 → 31/03/21
Project: Research

Cite this

@article{c8c82b52556f45908d26fc2144b638f4,

title = "First observation of the 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay",

abstract = "The 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. Its branching fraction relative to that of the 𝐵+→𝐷+⁢𝐷−⁢𝐾+ decay is measured to be ℬ⁡(𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+)ℬ⁡(𝐵+→𝐷+⁢𝐷−⁢𝐾+)=0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the 𝐷±𝑠→𝐾∓⁢𝐾±⁢𝜋± and 𝐷±→𝐾∓⁢𝜋±⁢𝜋± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored ¯𝑏→¯𝑐⁢𝑐⁢¯𝑠 transitions and opens the path for unique studies of spectroscopy in future.",

author = "\{LHCb collaboration\} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, \{Lais Soares\} and Oliva Federica and Ozlem Ozcelik and Gediminas Sarpis and R.H. O'Neil and M. Richardson-Slipper and C. Vrahas",

year = "2023",

month = aug,

day = "14",

doi = "10.1103/PhysRevD.108.034012",

language = "English",

volume = "108",

pages = "1--14",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

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TY - JOUR

T1 - First observation of the 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Federica, Oliva

AU - Ozcelik, Ozlem

AU - Sarpis, Gediminas

AU - O'Neil, R.H.

AU - Richardson-Slipper, M.

AU - Vrahas, C.

PY - 2023/8/14

Y1 - 2023/8/14

N2 - The 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. Its branching fraction relative to that of the 𝐵+→𝐷+⁢𝐷−⁢𝐾+ decay is measured to be ℬ⁡(𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+)ℬ⁡(𝐵+→𝐷+⁢𝐷−⁢𝐾+)=0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the 𝐷±𝑠→𝐾∓⁢𝐾±⁢𝜋± and 𝐷±→𝐾∓⁢𝜋±⁢𝜋± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored ¯𝑏→¯𝑐⁢𝑐⁢¯𝑠 transitions and opens the path for unique studies of spectroscopy in future.

AB - The 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. Its branching fraction relative to that of the 𝐵+→𝐷+⁢𝐷−⁢𝐾+ decay is measured to be ℬ⁡(𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+)ℬ⁡(𝐵+→𝐷+⁢𝐷−⁢𝐾+)=0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the 𝐷±𝑠→𝐾∓⁢𝐾±⁢𝜋± and 𝐷±→𝐾∓⁢𝜋±⁢𝜋± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored ¯𝑏→¯𝑐⁢𝑐⁢¯𝑠 transitions and opens the path for unique studies of spectroscopy in future.

U2 - 10.1103/PhysRevD.108.034012

DO - 10.1103/PhysRevD.108.034012

M3 - Article

SN - 2470-0010

VL - 108

SP - 1

EP - 14

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 034012

ER -

First observation of the 𝐵+→𝐷+𝑠⁢𝐷−𝑠⁢𝐾+ decay

Abstract

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Projects

LHCb Upgrade II: Maximising HL-LHC Discovery Potential

LHCb Upgrade II: Maximising HL-LHC Discovery Potential (Bridging Funding)

LHCb Ugrade: Beyond the Energy Frontier

Cite this