PT Journal
AU LHCb Collaboration (Aaij, Rea
   Henry, L
   Jashal, BK
   Martinez-Vidal, F
   Oyanguren, A
   Remon Alepuz, C
   Ruiz Vidal, J
TI Observation of the Bs0 -> (DD -/+)-D-*+/- decay
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2021
BP 099
EP 19pp
VL 03
IS 3
DI 10.1007/JHEP03(2021)099
LA English
DE B physics; Branching fraction; Flavor physics; Hadron-Hadron scattering (experiments)
AB A search for the B-s(0) -> D*(+/-) D--/+ decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb(-1). The decay is observed with a high significance and its branching fraction relative to the B-0 -> D*(+/-) D--/+ decay is measured to be B(B-s(0) -> D*D-+/-(-/+))/B(B-0 -> D*D-+/-(-/+)) = 0.137 +/- 0.017 +/- 0.002 +/- 0.006, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B-s(0) and B-0 hadronisation fractions.
ER