This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.108.112002 in citations.
Please use the identifier: http://hdl.handle.net/2128/4863 in citations.
Examining Coupled-Channel Effects in Radiative Charmonium Transitions
Examining Coupled-Channel Effects in Radiative Charmonium Transitions
Coupled-channel effects due to coupling of charmonia to the charmed and anticharmed mesons are of current interest in heavy quarkonium physics. However, the effects have not been unambiguously established. In this paper, a clean method is proposed in order to examine the coupled-channel effects in c...
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Personal Name(s): | Guo, Feng-Kun (Corresponding author) |
---|---|
Meißner, Ulf-G. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4 |
Published in: | Physical review letters, 108 11, S. -112002 |
Imprint: |
College Park, Md.
APS
2012
|
DOI: |
10.1103/PhysRevLett.108.112002 |
Document Type: |
Journal Article |
Research Program: |
Hadron Structure and Dynamics (HSD) |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/4863 in citations.
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520 | |9 arXiv |a Coupled-channel effects due to coupling of charmonia to the charmed and anticharmed mesons are of current interest in heavy quarkonium physics. However, the effects have not been unambiguously established. In this paper, a clean method is proposed in order to examine the coupled-channel effects in charmonium transitions. We show that the hindered M1 radiative transitions from the 2P to 1P charmonia are suitable for this purpose. We suggest to measure one or more of the ratios Gamma(h_c'-->chi_{cJ} gamma)/Gamma(chi_{cJ}'-->chi_{cJ} pi^0) and Gamma(chi_{cJ}'-->h_c gamma)/Gamma(chi_{cJ}'-->chi_{cJ} pi^0), for which highly nontrivial and parameter-free predictions are given. The picture can also be tested using both unquenched and quenched lattice calculations. | ||
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