Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Observation of ᴧb0→ ᴧc+ D̄(*)0K− and ᴧb0→ ᴧc+ Ds*− decays

Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G. (2024) In European Physical Journal C. Particles and Fields 84(6).
Abstract
The decays Λb0→Λc +D¯(∗)0K- and Λb0→Λc+Ds∗- are observed for the first time, in proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 5.4fb-1 collected with the LHCb detector. Their ratios of branching fractions with respect to the Λb 0→Λc +Ds - mode are measured to be (Formula presented.) where the first uncertainties are statistical, the second systematic, and the third, for the Λb 0→Λc +D¯(∗)0K- decays, are due to the uncertainties on... (More)
The decays Λb0→Λc +D¯(∗)0K- and Λb0→Λc+Ds∗- are observed for the first time, in proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 5.4fb-1 collected with the LHCb detector. Their ratios of branching fractions with respect to the Λb 0→Λc +Ds - mode are measured to be (Formula presented.) where the first uncertainties are statistical, the second systematic, and the third, for the Λb 0→Λc +D¯(∗)0K- decays, are due to the uncertainties on the branching fractions of the Ds -→K-K+π- and D¯0→K+π- decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in Λb 0→Λc +D¯(∗)0K- decay channels. © The Author(s) 2024. (Less)
Please use this url to cite or link to this publication:
author
; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Branching fractions, Decay channels, Decay mode, Effective theories, Integrated luminosity, Normalisation, Pentaquark search, Proton proton collisions, Uncertainty, High energy physics
in
European Physical Journal C. Particles and Fields
volume
84
issue
6
article number
575
publisher
Springer Nature
external identifiers
  • scopus:85201023451
ISSN
1434-6044
DOI
10.1140/epjc/s10052-024-12752-3
language
English
LU publication?
yes
id
b176da86-7a7c-43ee-bdb9-8f94edde0abf
date added to LUP
2024-10-02 13:30:03
date last changed
2025-04-04 14:34:01
@article{b176da86-7a7c-43ee-bdb9-8f94edde0abf,
  abstract     = {{The decays Λ<sub>b</sub><sup>0</sup>→Λ<sub>c</sub>                         <sup>+</sup>D¯<sup>(∗)0</sup>K<sup>-</sup> and Λ<sub>b</sub><sup>0</sup>→Λ<sub>c</sub><sup>+</sup>D<sub>s</sub><sup>∗-</sup> are observed for the first time, in proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 5.4fb-1 collected with the LHCb detector. Their ratios of branching fractions with respect to the Λb                         0→Λc                         +Ds                         - mode are measured to be (Formula presented.) where the first uncertainties are statistical, the second systematic, and the third, for the Λb                         0→Λc                         +D¯(∗)0K- decays, are due to the uncertainties on the branching fractions of the Ds                         -→K-K+π- and D¯0→K+π- decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in Λb                         0→Λc                         +D¯(∗)0K- decay channels. © The Author(s) 2024.}},
  author       = {{Aaij, R. and Ruiz-Vidal, Joan and Zunica, G.}},
  issn         = {{1434-6044}},
  keywords     = {{Branching fractions; Decay channels; Decay mode; Effective theories; Integrated luminosity; Normalisation; Pentaquark search; Proton proton collisions; Uncertainty; High energy physics}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{Springer Nature}},
  series       = {{European Physical Journal C. Particles and Fields}},
  title        = {{Observation of ᴧ<sub>b</sub><sup>0</sup>→ ᴧ<sub>c</sub><sup>+</sup> D̄<sup>(*)0</sup>K<sup>−</sup> and ᴧ<sub>b</sub><sup>0</sup>→ ᴧ<sub>c</sub><sup>+</sup> D<sub>s</sub><sup>*−</sup> decays}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-024-12752-3}},
  doi          = {{10.1140/epjc/s10052-024-12752-3}},
  volume       = {{84}},
  year         = {{2024}},
}