A. Bolshov

TL;DR: The Bc± meson was observed through the decay Bc+→J/ ψπ±, in data corresponding to an integrated luminosity of 2.4fb-1 recorded by the Collider Detector at Fermilab II detector at the Fermielab Tevatron as discussed by the authors.

Abstract: We have performed a search for B-s(0)->mu(+)mu(-) and B-0 ->mu(+)mu(-) decays in p (p) over bar collisions at root s = 1.96 TeV using 2 fb(-1) of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron Collider. The observed number of B-s(0) and B-0 candidates is consistent with background expectations. The resulting upper limits on the branching fractions are B(B-s(0)->mu(+)mu(-)) mu(+)mu(-)) < 1.8 x 10(-8) at 95% C.L.

TL;DR: In this article, the masses of b hadrons in exclusively reconstructed final states containing a J/{psi}yields}{mu}{sup -}{mu-sup +} decay were measured using 220 pb{sup -1} of data collected by the CDF II experiment.

TL;DR: In this article, the authors measured the time dependence of the ratio of decay rates for the rare decay D0->K+pi- to the Cabibbo-favored decay D 0->K-pi+.