> Details
Aaij, R.;
Adeva, B.;
Adinolfi, M.;
Ajaltouni, Z.;
Akar, S.;
Albrecht, J.;
Alessio, F.;
Alexander, M.;
Alfonso Albero, A.;
Ali, S.;
Alkhazov, G.;
Alvarez Cartelle, P.;
Alves, A. A.;
Amato, S.;
Amerio, S.;
Amhis, Y.;
An, L.;
Anderlini, L.;
Andreassi, G.;
Andreotti, M.;
Andrews, J. E.;
Appleby, R. B.;
Archilli, F.;
Arnau Romeu, J.;
[...]
Measurement of the ratio of branching fractions of the decays Λ0
b → ψ(2S)Λ and Λ0
b → J/ψΛ
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- Media type: E-Article
- Title: Measurement of the ratio of branching fractions of the decays Λ0 b → ψ(2S)Λ and Λ0 b → J/ψΛ
- Contributor: Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Archilli, F.; Arnau Romeu, J.; [...]
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Published:
Springer Science and Business Media LLC, 2019
- Published in: Journal of High Energy Physics, 2019 (2019) 3
- Language: English
- DOI: 10.1007/jhep03(2019)126
- ISSN: 1029-8479
- Keywords: Nuclear and High Energy Physics
- Origination:
- Footnote:
- Description: 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 $$ \mathrm{\mathcal{B}}\left({\Lambda}_b^0\to \psi (2S)\Lambda \right)/\mathrm{\mathcal{B}}\left({\Lambda}_b^0\to J/\psi \Lambda \right)=0.513\pm 0.023\left(\mathrm{stat}\right)\pm 0.016\left(\mathrm{syst}\right)\pm 0.011\left(\mathrm{\mathcal{B}}\right) $$ ℬ Λ b 0 → ψ 2 S Λ / ℬ Λ b 0 → J / ψ Λ = 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.
- Access State: Open Access