Abstract
The decay B+c→ψ(2S)π+ with ψ(2S)→μ+μ− is observed with a significance of 5.2σ using pp collision data corresponding to an integrated luminosity of 1.0\invfb collected by the LHCb experiment. The branching fraction of B+c→ψ(2S)π+ decays relative to that of the B+c→J/ψπ+ mode is measured to be
B(B+c→ψ(2S)π+)B(B+c→J/ψπ+)=0.250±0.068stat±0.014\syst±0.006(B).
The last term is the uncertainty on the ratio B(ψ(2S)→μ+μ−)/B(J/ψ→μ+μ−).
B(B+c→ψ(2S)π+)B(B+c→J/ψπ+)=0.250±0.068stat±0.014\syst±0.006(B).
The last term is the uncertainty on the ratio B(ψ(2S)→μ+μ−)/B(J/ψ→μ+μ−).
| Original language | English |
|---|---|
| Pages (from-to) | 071103 |
| Number of pages | 1 |
| Journal | Physical Review D, particles, fields, gravitation, and cosmology |
| Volume | D87 |
| Early online date | 7 Mar 2013 |
| DOIs | |
| Publication status | Published - 26 Apr 2013 |