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024 7 _ |a 10.1103/PhysRevD.83.034013
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024 7 _ |a arXiv:1008.3632
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035 _ _ |a FZJ-IKP-TH-2010-08
035 _ _ |a HISKP-TH-10-09
037 _ _ |a PreJuSER-18594
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Astronomy & Astrophysics
084 _ _ |2 WoS
|a Physics, Particles & Fields
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084 _ _ |2 PACS
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100 1 _ |0 P:(DE-HGF)0
|a Guo, F.-K.
|b 0
245 _ _ |a Effect of charmed meson loops on charmonium transitions
260 _ _ |a [S.l.]
|b Soc.
|c 2011
264 _ 1 |3 online
|2 Crossref
|b American Physical Society (APS)
|c 2011-02-11
264 _ 1 |3 print
|2 Crossref
|b American Physical Society (APS)
|c 2011-02-01
300 _ _ |a 034013
336 7 _ |a Journal Article
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440 _ 0 |0 4923
|a Physical Review D
|v 83
|x 1550-7998
|y 3
500 _ _ |a We thank Yu Jia, Thomas Mannel, and Joan Soto for useful discussions. F.-K.G., C. H., and U.-G. M. thank the Helmholtz Association for funds provided to the virtual institute "Spin and strong QCD'' (VH-VI-231) and by the DFG (SFB/TR 16, "Subnuclear Structure of Matter'') and the European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter'' (acronym HadronPhysics2, Grant Agreement No. 227431) under the Seventh Framework Program of the EU. U.-G. M. also thanks the BMBF for support (Grant No. 06BN9006). Q.Z. and G. L. acknowledge the support, in part, from the National Natural Science Foundation of China (Grants No. 10675131, No. 10491306, and No. 10947007), Chinese Academy of Sciences (No. KJCX3-SYW-N2), and Ministry of Science and Technology of China (No. 2009CB825200). G. L. thanks the partial support from Shandong Province (Grant No. ZR2010AM011).
520 _ _ |a 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.
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542 _ _ |i 2011-02-11
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|u http://link.aps.org/licenses/aps-default-license
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |2 INSPIRE
|a effective field theory: nonrelativistic
650 _ 7 |2 INSPIRE
|a charmed meson: intermediate state
650 _ 7 |2 INSPIRE
|a charmonium: hadronic decay
650 _ 7 |2 INSPIRE
|a effective Lagrangian: chiral
650 _ 7 |2 INSPIRE
|a pi0: production
650 _ 7 |2 INSPIRE
|a eta: production
650 _ 7 |2 INSPIRE
|a Feynman graph: higher-order
650 _ 7 |2 INSPIRE
|a tree approximation
650 _ 7 |2 INSPIRE
|a ground state
650 _ 7 |2 INSPIRE
|a excited state
650 _ 7 |2 INSPIRE
|a charmonium: width
650 _ 7 |2 INSPIRE
|a amplitude analysis
650 _ 7 |2 INSPIRE
|a numerical calculations
650 _ 7 |2 INSPIRE
|a bibliography
700 1 _ |0 P:(DE-Juel1)131182
|a Hanhart, C.
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700 1 _ |0 P:(DE-HGF)0
|a Li, G.
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700 1 _ |0 P:(DE-Juel1)131252
|a U.-G. Meißner, U.-G.
|b 3
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Zhao, Q.
|b 4
773 1 8 |a 10.1103/physrevd.83.034013
|b : American Physical Society (APS), 2011-02-11
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|t Physical Review D
|v 83
|y 2011
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773 _ _ |a 10.1103/PhysRevD.83.034013
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856 7 _ |u http://dx.doi.org/10.1103/PhysRevD.83.034013
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