Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays

Details Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays

2011-01-31

arxiv.org/abs/1101.6058v1

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 figures, submited to Phys. Rev. Lett

Scientific paper

The observation of the $Y(4140)$ structure in $B^\pm\rightarrow J/\psi\,\phi K^\pm$ decays produced in $\bar{p} p $ collisions at $\sqrt{s}=1.96~\TeV$ is reported with a statistical significance greater than 5 standard deviations. A fit to the $J/\psi\,\phi$ mass spectrum is performed assuming the presence of a Breit-Wigner resonance. The fit yields a signal of $19^{+6}_{-5}$ resonance events, and resonance mass and width of $4143.4^{+2.9}_{-3.0}(\mathrm{stat})\pm0.6(\mathrm{syst})~\MeVcc$ and $15.3^{+10.4}_{-6.1}(\mathrm{stat})\pm2.5(\mathrm{syst})~\MeVcc$ respectively. The parameters of this resonance-like structure are consistent with values reported from an earlier CDF analysis.

Affiliated with

Also associated with

No associations

Rating

Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of the $Y(4140)$ structure in the $J/ψ\,φ$ Mass Spectrum in $B^\pm\to J/ψ\,φK$ cays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-648789