Theory Seminar

KEK 素粒子原子核研究所・理論セミナー



TITLE：

Covariant tensor formalism for partial wave analyses
of J/\psi radiative decays to \gamma + vector
(\rho,\omega,\phi) or baryon pair.

SPEAKER：

Dr. Sayipjamal Dulat (IHEP, Beijin)

DATE：

Oct. 28 (Tue.) 11:00

PLACE:

Kenkyu Honkan 2F RM 220/221


　　　　　　　　　　　　　　　　

　　　（ABSTRACT）
$J/\psi$ and $\psi'$ radiative decay channels are a good place to look for glueballs and hybrids. Abundant $J/\psi$ and $\psi'$ events have been collected at the Beijing Electron Positron Collider (BEPC). More data will be collected at upgraded BEPC and CLEO-C. Here we provide explicit partial-wave analysis (PWA) formulae for the $\psi$ radiative decay channels $\psi \to \gamma V(\rho, \omega, \phi)$ and $\psi \to \gamma p\bar p, \gamma\Lambda\bar \Lambda, \gamma\Sigma^0 \bar\Sigma^0, \gamma\Xi\bar \Xi$ in the covariant tensor formalism.