Towards a new paradigm for heavy-light meson spectroscopy

doi:10.1103/PhysRevD.98.094018

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	Towards a new paradigm for heavy-light meson spectroscopy
	Du, ML; Yao, DL ; Nieves, J ; Meissner, UG ; Hanhart, C ; Guo, FK ; Fernandez-Soler, P ; Albaladejo, M 3
刊名	PHYSICAL REVIEW D
	2018
卷号	98 期号:9 页码:94018
关键词	S-MESONS RESONANCES MODEL
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.094018
英文摘要	Since 2003 many new hadrons, including the lowest-lying positive-parity charm-strange mesons D(s0) (2317) and D-s1 (2460), have been observed that do not conform with quark-model expectations. It was recently demonstrated that various puzzles in the charm-meson spectrum find a natural resolution if the SU(3) multiplets for the lightest scalar and axial-vector states, among them the D(s0) (2317) and the D-s1 (2460), owe their existence to the nonperturbative dynamics of Goldstone-boson scattering off D-(s) and D*((s)) mesons. Most importantly the ordering of the lightest strange and nonstrange scalars becomes natural. We demonstrate for the first time that this mechanism is strongly supported by the recent high quality data on the B- -> D+ pi(-)pi(-) provided by the LHCb experiment. This implies that the lowest quark-model positive-parity charm mesons, together with their bottom counterparts, if realized in nature, do not form the ground-state multiplet. This is similar to the pattern that has been established for the scalar mesons made from light up, down, and strange quarks, where the lowest multiplet is considered to be made of states not described by the quark model. In a broader view, the hadron spectrum must be viewed as more than a collection of quark-model states.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22782]
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.Hanhart, Christoph; Meissner, Ulf-G.] Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany 2.[Du, Meng-Lin; Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 3.Du, Meng-Lin; Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 4.Univ Murcia, Dept Fis, E-30071 Murcia, Spain 5.Univ Valencia, Ctr Mixto CSIC, Inst Fis Corpuscular IFIC, Inst Invest Paterna, Apartado 22085, E-46071 Valencia, Spain 6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 8.Hanhart, Christoph; Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Du, ML,Yao, DL,Nieves, J,et al. Towards a new paradigm for heavy-light meson spectroscopy[J]. PHYSICAL REVIEW D,2018,98(9):94018.
APA	Du, ML.,Yao, DL.,Nieves, J.,Meissner, UG.,Hanhart, C.,...&Albaladejo, M.(2018).Towards a new paradigm for heavy-light meson spectroscopy.PHYSICAL REVIEW D,98(9),94018.
MLA	Du, ML,et al."Towards a new paradigm for heavy-light meson spectroscopy".PHYSICAL REVIEW D 98.9(2018):94018.