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Long-distant contribution and $\chi_{c1}$ radiative decays to light vector meson
- Source :
- Eur.Phys.J.C70:177-182,2010
- Publication Year :
- 2010
-
Abstract
- The discrepancy between the PQCD calculation and the CLEO data for $\chi_{c1}\to \gamma V$ ($V=\rho^0,\,\omega,\,\phi$) stimulates our interest in exploring extra mechanism of $\chi_{c1}$ decay. In this work, we apply an important non-perturbative QCD effect, i.e., hadronic loop mechanism, to study $\chi_{c1}\to \gamma V$ radiative decay. Our numerical result shows that the theoretical results including the hadronic loop contribution and the PQCD calculation of $\chi_{c1}\to \gamma V$ are consistent with the corresponding CLEO data of $\chi_{c1}\to \gamma V$. We expect further experimental measurement of $\chi_{c1}\to \gamma V$ at BES-III, which will be helpful to test the hadronic loop effect on $\chi_{c1}$ decay.<br />Comment: 7 pages, 2 figures. Accepted for publication in Eur. Phys. J. C
Details
- Database :
- arXiv
- Journal :
- Eur.Phys.J.C70:177-182,2010
- Publication Type :
- Report
- Accession number :
- edsarx.1005.0066
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1140/epjc/s10052-010-1449-5