Publication

B-s(0) Decays at Belle

2011
Conference Papers

Abstract

The large data sample recorded with the Belle detector at the Gamma (5S) energy provides a unique opportunity to study the poorly-known B-s(0) meson. Several analyses, made with a data sample representing an integrated luminosity of 23.6 fb(-1), are presented. We report the study of the large-signal B-s(0) -> D(s)(()-)h(+) (h(+) = pi(+), rho(+)) decays. In addition, several results on B-s(0) decays related to CP-violation studies are described. Beside the non-flavor specific B-s(0) -> D-s(-/+) K+ decay, the following CP-eigenstate decays are studied: B-s(0) -> J/psi eta((')), B-s(0) -> J/psi f(0) (980), the charmless B-s(0) -> h (h) over bar (h = pi(+), K+, K-S(0)) and the three B-s(0) -> D-s(())+D-s((*)-) modes from which Delta Gamma(CP)(s)/Gamma(s) is extracted.

Official source

https://infoscience.epfl.ch/entities/publication/df52f4b4-9041-4a27-9cb9-643966ba2f1d

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2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/df52f4b4-9041-4a27-9cb9-643966ba2f1d

About this result

Related concepts (32)

Belle experiment

The Belle experiment was a particle physics experiment conducted by the Belle Collaboration, an international collaboration of more than 400 physicists and engineers, at the High Energy Accelerator Research Organisation (KEK) in Tsukuba, Ibaraki Prefecture, Japan. The experiment ran from 1999 to 2010. The Belle detector was located at the collision point of the asymmetric-energy electron–positron collider, KEKB.

Beta decay

In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron), transforming into an isobar of that nuclide. For example, beta decay of a neutron transforms it into a proton by the emission of an electron accompanied by an antineutrino; or, conversely a proton is converted into a neutron by the emission of a positron with a neutrino in so-called positron emission.

Radioactive decay

Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay, all of which involve emitting particles. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetism and nuclear force.

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