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000127617 0247_ $$2doi$$a10.1103/PhysRevLett.108.112002
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000127617 0247_ $$2arXiv$$aarXiv:1111.1151$$chep-ph
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000127617 035__ $$9arXiv$$aarXiv:1111.1151$$chep-ph
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000127617 1001_ $$0P:(DE-HGF)0$$aGuo, Feng-Kun$$b0$$eCorresponding author
000127617 245__ $$aExamining Coupled-Channel Effects in Radiative Charmonium Transitions
000127617 260__ $$aCollege Park, Md.$$bAPS$$c2012
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000127617 500__ $$9arXiv$$a5 pages, 2 figures. Numerical results corrected. Accepted for publication in Phys. Rev. Lett
000127617 520__ $$9arXiv$$aCoupled-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.
000127617 536__ $$0G:(DE-HGF)POF2-531$$a531 - Hadron Structure and Dynamics (HSD) (POF2-531)$$cPOF2-531$$fPOF II$$x0
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000127617 650_7 $$2INSPIRE$$aquarkonium: heavy
000127617 650_7 $$2INSPIRE$$acoupled channel
000127617 650_7 $$2INSPIRE$$acharmonium
000127617 650_7 $$2INSPIRE$$aquenching
000127617 650_7 $$2INSPIRE$$alattice
000127617 7001_ $$0P:(DE-Juel1)131252$$aMeißner, Ulf-G.$$b1
000127617 773__ $$0PERI:(DE-600)1472655-5$$a10.1103/PhysRevLett.108.112002$$n11$$p-112002$$tPhysical review letters$$v108
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000127617 9141_ $$y2012
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000127617 9201_ $$0I:(DE-Juel1)IAS-4-20090406$$kIAS-4$$lTheorie der Starken Wechselwirkung$$x0
000127617 9201_ $$0I:(DE-Juel1)IKP-3-20111104$$kIKP-3$$lTheorie der starken Wechselwirkung$$x1
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