Publication

Charm and charmonium-like spectroscopy in B decays in Belle

2009
Conference Papers

Abstract

We report measurements of the branching fractions for the decays B -> D-s1 (2536) + (D) over bar (()), where (D) over bar (()) is (D) over bar (0), D- or D*-, and study of B -> X(3872)K with X(3872) decaying to D-*0(D) over bar (0) using a sample of 657 million B (B) over bar pairs recorded at the r(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

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2009
Conference Papers

Abstract

Official source

Related concepts (32)

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.

Decay chain

In nuclear science, the decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations. It is also known as a "radioactive cascade". The typical radioisotope does not decay directly to a stable state, but rather it decays to another radioisotope. Thus there is usually a series of decays until the atom has become a stable isotope, meaning that the nucleus of the atom has reached a stable state. Decay stages are referred to by their relationship to previous or subsequent stages.

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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