| Title: | Observation of the Λ<inf>b</inf><sup>0</sup>→J/ψΛϕ decay in proton-proton collisions at s=13TeV |
| Authors: | Sirunyan, AM
Tumasyan, A
Adam, W
Ambrogi, F
Bergauer, T
Dragicevic, M
Erö, J
Escalante Del Valle, A
Flechl, M
Frühwirth, R
Jeitler, M
Krammer, N
Krätschmer, I
Liko, D
Madlener, T
Mikulec, I
Rad, N
Schieck, J
Schöfbeck, R
Spanring, M
Waltenberger, W
Wulz, CE
Zarucki, M
Drugakov, V
Mossolov, V
Suarez Gonzalez, J
Darwish, MR
De Wolf, EA
Di Croce, D
Janssen, X
Lelek, A
Pieters, M
Rejeb Sfar, H
Van Haevermaet, H
Van Mechelen, P
Van Putte, S
Van Remortel, N
Blekman, F
Bols, ES
Chhibra, SS
D'Hondt, J
De Clercq, J
Lontkovskyi, D
Lowette, S
Marchesini, I
Moortgat, S
Python, Q
Skovpen, K
Tavernier, S
Van Doninck, W
Van Mulders, P
Beghin, D
Bilin, B
Clerbaux, B
De Lentdecker, G
Delannoy, H
Dorney, B
Favart, L
Grebenyuk, A
Kalsi, AK
Popov, A
Postiau, N
Starling, E
Thomas, L
Vander Velde, C
Vanlaer, P
Vannerom, D
Cornelis, T
Dobur, D
Khvastunov, I
Niedziela, M
Roskas, C
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Bondu, O
Bruno, G
Caputo, C
David, P
Delaere, C
Delcourt, M
Giammanco, A
Lemaitre, V
Prisciandaro, J
Saggio, A
Vidal Marono, M
Vischia, P
Zobec, J
Alves, FL
Alves, GA
Correia Silva, G
Hensel, C
Moraes, A
Rebello Teles, P
Belchior Batista Das Chagas, E
Carvalho, W
Chinellato, J
Coelho, E
Da Costa, EM |
| Keywords: | CMSb physics;Heavy-flavor spectroscopy;Computing |
| Issue Date: | 6-Jan-2020 |
| Publisher: | Elsevier |
| Citation: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2020, 802 |
| Abstract: | The observation of the Λb0→J/ψΛϕ decay is reported using proton-proton collision data collected at s=13TeV by the CMS experiment at the LHC in 2018, corresponding to an integrated luminosity of 60fb−1. The ratio of the branching fractions B(Λb0→J/ψΛϕ)/B(Λb0→ψ(2S)Λ) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10−2, where the first uncertainty is statistical, the second is systematic, and the last uncertainty reflects the uncertainties in the world-average branching fractions of ϕ and ψ(2S) decays to the reconstructed final states. |
| URI: | http://bura.brunel.ac.uk/handle/2438/20281 |
| DOI: | http://dx.doi.org/10.1016/j.physletb.2020.135203 |
| ISSN: | 0370-2693
http://dx.doi.org/10.1016/j.physletb.2020.135203 |
| Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers
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