TY - JOUR AU - LHCb Collaboration (Aaij, R. et al AU - Henry, L. AU - Jashal, B. K. AU - Martinez-Vidal, F. AU - Oyanguren, A. AU - Remon Alepuz, C. AU - Ruiz Vidal, J. PY - 2021 DA - 2021// TI - Observation of the Bs0 -> (DD -/+)-D-*+/- decay T2 - J. High Energy Phys. JO - Journal of High Energy Physics SP - 099 EP - 19pp VL - 03 IS - 3 PB - Springer KW - B physics KW - Branching fraction KW - Flavor physics KW - 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. SN - 1029-8479 UR - https://arxiv.org/abs/2012.11341 UR - https://doi.org/10.1007/JHEP03(2021)099 DO - 10.1007/JHEP03(2021)099 LA - English N1 - WOS:000627834700001 ID - LHCbCollaborationAaij_etal2021 ER -