Publication

Study of B meson decays to three-body charmless hadronic final states

2004
Journal Articles

Abstract

We report results of a study of charmless B meson decays to three-body Kππ, KKπ and KKK final states. Measurements of branching fractions for B decays to K=+(0)π+π-, K +K+K-, K0K+K-, K+Ks 0Ks 0 and K s 0Ks 0Ks 0 final states are presented. The decays B0→K0K +K-, B+→K+Ks 0Ks 0 and B0→Ks 0Ks 0Ks 0 are observed for the first time. We also report evidence for B+→K +K-π+ decay. For the three-body final states K0K+π-, Ks 0K s 0π+, K+K+π - and K-π+π+, 90% confidence level upper limits are reported. Finally, we discuss the possibility of using the three-body B0→Ks 0K+K - decay for CP violation studies. The results are obtained with a 78 fb-1 data sample collected at the Y(4S) resonance by the Belle detector operating at the KEKB asymmetric energy e+e- collider. © 2004 The American Physical Society.

Official source

https://infoscience.epfl.ch/entities/publication/60031ded-4f7f-4174-8a6a-420a48a9dc71

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2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/60031ded-4f7f-4174-8a6a-420a48a9dc71

About this result

Related concepts (32)

LHCb experiment

The LHCb (Large Hadron Collider beauty) experiment is a particle physics detector experiment collecting data at the Large Hadron Collider at CERN. LHCb is a specialized b-physics experiment, designed primarily to measure the parameters of CP violation in the interactions of b-hadrons (heavy particles containing a bottom quark). Such studies can help to explain the matter-antimatter asymmetry of the Universe. The detector is also able to perform measurements of production cross sections, exotic hadron spectroscopy, charm physics and electroweak physics in the forward region.

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.

Meson

In particle physics, a meson (ˈmiːzɒn,_ˈmɛzɒn) is a type of hadronic subatomic particle composed of an equal number of quarks and antiquarks, usually one of each, bound together by the strong interaction. Because mesons are composed of quark subparticles, they have a meaningful physical size, a diameter of roughly one femtometre (10^−15 m), which is about 0.6 times the size of a proton or neutron. All mesons are unstable, with the longest-lived lasting for only a few tenths of a nanosecond.

Related publications (32)

Study of B meson decays to three-body charmless hadronic final states

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