Observation of the decay B+ → ψ(2S)ϕ(1020)K+ in pp collisions at √s=8TeV

CMS Collaboration; KAPOOR, A.; HEGDE, V.; Khachatryan, V.; KOTHEKAR, K.; CHAUHAN, S.; DUBE, SOURABH; SHARMA, SEEMA et al.; RANE, A.

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Observation of the decay B+ → ψ(2S)ϕ(1020)K+ in pp collisions at √s=8TeV

CMS Collaboration; Khachatryan, V.; CHAUHAN, S.; DUBE, SOURABH; HEGDE, V.; KAPOOR, A.; KOTHEKAR, K.; RANE, A.; SHARMA, SEEMA et al.

URI: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3438 https://doi.org/10.1016/j.physletb.2016.11.001 Date: 2017-01

Abstract:

The decay B+→ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at √s=8TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6fb−1. The branching fraction of this decay is measured, using the mode B+→ψ(2S)K+ as normalization, to be (4.0±0.4(stat)±0.6(syst)±0.2(B))×10−6, where the third uncertainty is from the measured branching fraction of the normalization channel.

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