Prospects for rare and forbidden hyperon decays at BESIII

The study of hyperon decays at the Beijing Electron Spectrometer III (BESIII) is proposed to investigate the events of J/ φ decay into hyperon pairs, which provide a pristine experimental environment at the Beijing Electron-Positron Collider II. About 10 6-10 8 hyperons, i.e., Ʌ, Σ, Ξand Ω, will be...

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Bibliographic Details
Published in:Frontiers of physics 2017-10, Vol.12 (5), p.121301, Article 121301
Main Author: Li, Hai-Bo
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Atomic
BESIII
Charged particles
Condensed Matter Physics
Electron-positron accelerators
FCNC
Fractions
hyperon
Hyperons
J/ φdecay
lepton flavor violation
Molecular
Optical and Plasma Physics
Particle and Nuclear Physics
Perspective
Physics
Physics and Astronomy
Quarks
rare decay
Symmetry
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Summary:The study of hyperon decays at the Beijing Electron Spectrometer III (BESIII) is proposed to investigate the events of J/ φ decay into hyperon pairs, which provide a pristine experimental environment at the Beijing Electron-Positron Collider II. About 10 6-10 8 hyperons, i.e., Ʌ, Σ, Ξand Ω, will be produced in the J/ φ and φ(2 S) decays with the proposed data samples at BESIII. Based on these samples, the measurement sensitivity of the branching fractions of the hyperon decays is in the range of 10 -5-10 -8. In addition, with the known center-of-mass energy and "tag technique", rare decays and decays with invisible final states can be probed.
ISSN:2095-0462
2095-0470
DOI:10.1007/s11467-017-0691-9