First observation of Bs→J/ψf0(980) decays.

The LHCb Collaboration

doi:10.1016/j.physletb.2011.03.006

First observation of Bs→J/ψf0(980) decays.

The LHCb Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs system. Using a fit to the \pi+^ \pi^- mass spectrum with interfering resonances gives Rf0/ϕ=[Γ(Bs→J/ψf0,f0→π+π−)]/[Γ(Bs→J/ψϕ,ϕ→K+K−)]=0.252+0.046+0.027−0.032−0.033, where the uncertainties are statistical and systematic, respectively.

Original language	English
Journal	Physics Letters B
DOIs	https://doi.org/10.1016/j.physletb.2011.03.006
Publication status	Published - 2 Feb 2011

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@article{51d4c73cf0a14c27b4bfa699b6787cc3,

title = "First observation of Bs→J/ψf0(980) decays.",

abstract = "Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs system. Using a fit to the \pi+^ \pi^- mass spectrum with interfering resonances gives Rf0/ϕ=[Γ(Bs→J/ψf0,f0→π+π−)]/[Γ(Bs→J/ψϕ,ϕ→K+K−)]=0.252+0.046+0.027−0.032−0.033, where the uncertainties are statistical and systematic, respectively.",

author = "{The LHCb Collaboration} and Stephen Playfer and R Aaij and Philip Clark and Matthew Needham and Franz Muheim and Peter Clarke and Yuehong Xie and Stephan Eisenhardt",

note = "Phys.Lett. B698 (2011) 115-122 ",

year = "2011",

month = feb,

day = "2",

doi = "10.1016/j.physletb.2011.03.006",

language = "English",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - First observation of Bs→J/ψf0(980) decays.

AU - The LHCb Collaboration

AU - Playfer, Stephen

AU - Aaij, R

AU - Clark, Philip

AU - Needham, Matthew

AU - Muheim, Franz

AU - Clarke, Peter

AU - Xie, Yuehong

AU - Eisenhardt, Stephan

N1 - Phys.Lett. B698 (2011) 115-122

PY - 2011/2/2

Y1 - 2011/2/2

N2 - Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs system. Using a fit to the \pi+^ \pi^- mass spectrum with interfering resonances gives Rf0/ϕ=[Γ(Bs→J/ψf0,f0→π+π−)]/[Γ(Bs→J/ψϕ,ϕ→K+K−)]=0.252+0.046+0.027−0.032−0.033, where the uncertainties are statistical and systematic, respectively.

AB - Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decay Bs→J/ψf0(980) is observed. This CP eigenstate mode could be used to measure mixing-induced CP violation in the Bs system. Using a fit to the \pi+^ \pi^- mass spectrum with interfering resonances gives Rf0/ϕ=[Γ(Bs→J/ψf0,f0→π+π−)]/[Γ(Bs→J/ψϕ,ϕ→K+K−)]=0.252+0.046+0.027−0.032−0.033, where the uncertainties are statistical and systematic, respectively.

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U2 - 10.1016/j.physletb.2011.03.006

DO - 10.1016/j.physletb.2011.03.006

M3 - Article

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

First observation of Bs→J/ψf0(980) decays.

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