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Measurement of the ratio of branching fractions of the decays Λ0 b→ ψ(2S)Λ and Λ0 b→ J/ψ Λ
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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Costa Sobral, C. M. , Crocombe, Andrew, Gershon, T. J., Kreps, Michal, Latham, Thomas, Loh, David, Lupton, Oliver, Mathad, A., Millard, E., O’Hanlon, Daniel, Poluektov, Anton, Qian, W. and Wicht, Jean). (2019) Measurement of the ratio of branching fractions of the decays Λ0 b→ ψ(2S)Λ and Λ0 b→ J/ψ Λ. Journal of High Energy Physics, 2019 . 126. doi:10.1007/JHEP03(2019)126 ISSN 1029-8479.
An open access version can be found in:
Official URL: https://doi.org/10.1007/JHEP03(2019)126
Abstract
Using pp collisions corresponding to 3 fb−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions
B(Λ0b→ψ(2S)Λ)/B(Λ0b→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(B)
is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.
| Item Type: | Journal Article | ||||||
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Journal or Publication Title: | Journal of High Energy Physics | ||||||
| Publisher: | Springer | ||||||
| ISSN: | 1029-8479 | ||||||
| Official Date: | 22 March 2019 | ||||||
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| Volume: | 2019 | ||||||
| Article Number: | 126 | ||||||
| DOI: | 10.1007/JHEP03(2019)126 | ||||||
| Institution: | University of Warwick | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
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| Open Access Version: | |||||||
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