This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.83.034013 in citations.
Please use the identifier: http://hdl.handle.net/2128/10305 in citations.
Effect of charmed meson loops on charmonium transitions
Effect of charmed meson loops on charmonium transitions
The effects of intermediate charmed mesons on charmonium transitions with the emission of one pion or eta are studied systematically. Based on a nonrelativistic effective field theory we show that charmed meson loops are enhanced compared to the corresponding tree-level contributions for transitions...
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Personal Name(s): | Guo, F.-K. |
---|---|
Hanhart, C. / Li, G. / U.-G. Meißner, U.-G. / Zhao, Q. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Physical Review D Physical review / D, 83 83 (2011 2011) 3 3, S. 034013 034013 |
Imprint: |
[S.l.]
Soc.
2011
2011-02-11 2011-02-01 |
Physical Description: |
034013 |
DOI: |
10.1103/PhysRevD.83.034013 |
Document Type: |
Journal Article |
Research Program: |
Study of Strongly Interacting Matter Physik der Hadronen und Kerne |
Series Title: |
Physical Review D
83 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10305 in citations.
The effects of intermediate charmed mesons on charmonium transitions with the emission of one pion or eta are studied systematically. Based on a nonrelativistic effective field theory we show that charmed meson loops are enhanced compared to the corresponding tree-level contributions for transitions between two S-wave charmonia as well as for transitions between two P-wave charmonia. On the contrary, for the transitions between one S-wave and one P-wave charmonium state, the loops need to be analyzed case by case and often appear to be suppressed. The relation to and possible implications for an effective Lagrangian approach are also discussed. This study at the same time provides a cross-check for the numerical evaluations. |