Strong decays of PψN (4312)+ to J/ψ (ηc) p and (D)over-bar (*) Λc within the Bethe-Salpeter framework

doi:10.1007/JHEP06(2023)189

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	*Strong decays of PψN (4312)+ to J/ψ (ηc) p and (D)over-bar () Λc within the Bethe-Salpeter framework**
	Li, Qiang ; Chang, Chao-Hsi ; Wang, Tianhong ; Wang, Guo-Li
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	6 页码:189
关键词	HEAVY MESON
ISSN号	1029-8479
DOI	10.1007/JHEP06(2023)189
英文摘要	Based on the effective Lagrangian in the heavy quark limit, we calculate the one-boson-exchange interaction kernel of P-psi(N) (4312)(+) as the (D) over bar Sigma(c) molecular state in isospin1/2. We present the Bethe-Salpeter equation and wave function for the constituent particles to be a (pseudo)scalar meson and a 12 baryon. By solving the Bethe-Salpeter equation, we obtain P-psi(N) (4312)(+) as the (D) over bar Sigma(c) molecular state with J(P) = (1/2)(-). Combining the effective Lagrangian and the obtained BS wave function, the partial decay widths of P-psi(N) (4312)(+) to J/p, (D) over bar Sigma(c), (D) over bar Sigma(c) and (D) over bar Sigma(c) are calculated to be 0.17, 0.085, 8.8, and 0.026 MeV, respectively, which are roughly consistent with the LHCb experimental measurements and some other theoretical researches. The obtain results indicate the fraction of (D) over bar Sigma(c) channel amounts to similar to 90% of P-psi(N) (4312)(+), and is a highly promising channel to be discovered in the near future experiments. Our results favor the interpretation of P-psi(N) (4312)(+) as the (D) over bar Sigma(c) molecular state with J(P) = (1/2)(-) and isospin I = 1/2.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/28084]
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.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 5.Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China 6.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiang,Chang, Chao-Hsi,Wang, Tianhong,et al. Strong decays of PψN (4312)+ to J/ψ (ηc) p and (D)over-bar (*) Λc within the Bethe-Salpeter framework[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(6):189.
APA	Li, Qiang,Chang, Chao-Hsi,Wang, Tianhong,&Wang, Guo-Li.(2023).Strong decays of PψN (4312)+ to J/ψ (ηc) p and (D)over-bar (*) Λc within the Bethe-Salpeter framework.JOURNAL OF HIGH ENERGY PHYSICS(6),189.
MLA	Li, Qiang,et al."Strong decays of PψN (4312)+ to J/ψ (ηc) p and (D)over-bar (*) Λc within the Bethe-Salpeter framework".JOURNAL OF HIGH ENERGY PHYSICS .6(2023):189.