Observation of the Bs 0→J/ψKs 0K±π∓ decay

Title:	Observation of the Bs 0→J/ψKs 0K±π∓ decay
Authors:	R., Aaij, Andreassen, Rolf E. Balagura, Vladislav Artamonov, Andrei V. ...
Keywords:	B physics;;Branching fraction;Hadron-hadron scattering
Issue Date:	2014
Publisher:	Journal of High Energy Physics
Citation:	Scopus
Abstract:	Decays of the form B(s) 0 → J/ψ KS 0h+h(′)- (h(′) = K, π) are searched for in proton-proton collision data corresponding to an integrated luminosity of 1.0 fb-1 recorded with the LHCb detector. The first observation of the B(s) 0 → J/ψ KS 0K±π∓ decay is reported, with significance in excess of 10 standard deviations. The B0→J/ψKs 0K+K- decay is also observed for the first time. The branching fraction of B0→J/ψKs 0π+π- is determined, to significantly better precision than previous measurements, using B0→ J/ψKs 0 as a normal-isation channel. Branching fractions and upper limits of the other B(s) 0→ J/ψKs 0h+h(′)- modes are determined relative to that of the B0→ /ψKs 0π+π- decay.
Description:	Journal of High Energy Physics, Volume 2014, Issue 7, July 2014, Article number 140 Journal of High Energy Physics
URI:	http://link.springer.com/article/10.1007%2FJHEP07%282014%29140 http://repository.vnu.edu.vn/handle/VNU_123/34199