PT Journal
AU LHCb Collaboration (Aaij, Rea
   Garcia Martin, LM
   Martinez-Vidal, F
   Oyanguren, A
   Remon Alepuz, C
   Ruiz Valls, P
   Sanchez Mayordomo, C
TI First study of the CP-violating phase and decay-width difference in B-s(0) -> psi(2S)phi decays
SO Physics Letters B
JI Phys. Lett. B
PY 2016
BP 253
EP 262
VL 762
DI 10.1016/j.physletb.2016.09.028
LA English
AB A time-dependent angular analysis of B-s(0) -> psi(2S)phi decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0fb(-1) collected during Run 1 of the LHC. The CP-violating phase and decay-width difference of the B-s(0) system are measured to be phi(s)=0.23(-0.28)(+0.29)+/- 0.02rad and Delta Gamma(s)=0.066(-0.044)(+0.041)+/- 0.007ps(-1), respectively, where the first uncertainty is statistical and the second systematic. This is the first time that phi s and Delta Gamma s have been measured in a decay containing the psi(2S) resonance.
ER