PT Journal
AU LHCb Collaboration (Aaij, Rea
   Oyanguren, A
   Ruiz Valls, P
TI Search for the decay B-s(0) -> D*(-/+)pi(+/-)
SO Physical Review D
JI Phys. Rev. D
PY 2013
BP 071101
EP 8pp
VL 87
IS 7
DI 10.1103/PhysRevD.87.071101
LA English
AB A search for the decay B-s(0) -> D*(-/+)pi(+/-) is presented using a data sample corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as B-s(0) -> pi(+)pi(-) and B-s(0) -> D (D) over bar. Systematic uncertainties are minimized by using B-0 -> D*(-/+)pi(+/-) as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B-s(0) -> D*(-/+)pi(+/-) < 6.1(7.8) x 10(-6) at 90% (95%) confidence level.
ER