Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects

doi:http://dx.doi.org/10.1016/j.physletb.2016.07.023

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	Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects
	Guo, FK ; Meissner, UG ; Yang, Z 5,7,7
刊名	PHYSICS LETTERS B
	2016
卷号	760 页码:417-421
关键词	HADRONIC TRANSITIONS DECAYS
DOI	http://dx.doi.org/10.1016/j.physletb.2016.07.023
英文摘要	In the hindered magnetic dipole transitions of heavy quarkonia, the coupled-channel effects originating from the coupling of quarkonia to a pair of heavy and anti-heavy mesons can play a dominant role. Here, we study the hindered magnetic dipole transitions between two P-wave bottomonia, chi(b)(nP) and h(b)(n'P), with n not equal n'. In these processes the coupled-channel effects are expected to lead to partial widths much larger than the quark model predictions. We estimate these partial widths which, however, are very sensitive to unknown coupling constants related to the vertices chi(b0)(nP)B (B) over bar. A measurement of the hindered M1 transitions can shed light on the coupled-channel dynamics in these transitions and hence on the size of the coupling constants. We also suggest to check the coupled-channel effects by comparing results from quenched and fully dynamical lattice QCD calculations. (C) 2016 Published by Elsevier B.V.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	DFG ; NSFC [11261130311] ; Thousand Talents Plan for Young Professionals ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23162]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Meissner, Ulf-G.] Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany 2.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 3.[Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany 4.[Guo, Feng-Kun 5.Meissner, Ulf-G. 6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.[Meissner, Ulf-G. 8.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
推荐引用方式 GB/T 7714	Guo, FK,Meissner, UG,Yang, Z. Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects[J]. PHYSICS LETTERS B,2016,760:417-421.
APA	Guo, FK,Meissner, UG,&Yang, Z.(2016).Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects.PHYSICS LETTERS B,760,417-421.
MLA	Guo, FK,et al."Hindered magnetic dipole transitions between P-wave bottomonia and coupled-channel effects".PHYSICS LETTERS B 760(2016):417-421.