New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states

doi:10.1103/PhysRevD.98.091502

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	New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states
	Yan, MJ ; Liu, XH ; Gonzalez-Solis, S ; Guo, FK ; Hanhart, C ; Meissner, UG ; Zou, BS
刊名	PHYSICAL REVIEW D
	2018
卷号	98 期号:9 页码:91502
关键词	SUPERFLAVOR SYMMETRY MESON RESONANCES HEAVY MESONS S-MESONS DECAYS
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.091502
英文摘要	The discovery of Xi(++)(cc) by the LHCb Collaboration triggers predictions of more doubly charmed baryons. By taking into account both the P-wave excitations between the two charm quarks and the scattering of light pseudoscalar mesons off the ground state doubly charmed baryons, a set of negative-parity spin-1/2 doubly charmed baryons are predicted already from a unitarized version of leading order chiral perturbation theory. Moreover, employing heavy antiquark-diquark symmetry, the relevant low-energy constants in the next-to-leading order are connected with those describing light pseudoscalar mesons scattering off charmed mesons, which have been well determined from lattice calculations and experimental data. Our calculations result in a spectrum richer than that of heavy mesons. We find two very narrow JP = 1/2(-) Omega(P)(cc), which very likely decay into Omega(cc)pi(0) breaking isospin symmetry. In the isospin-1/2 Xi(P)(cc) sector, three states are predicted to exist below 4.2 GeV with the lowest one being narrow and the other two rather broad. We suggest to search for the Xi(P)(cc) states in the Xi(++)(cc)pi(-) mode. Searching for them and their analogues are helpful to establish the hadron spectrum.
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/311006/22784]
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.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 3.Guo, Feng-Kun 4.Gonzalez-Solis, Sergi 5.[Yan, Mao-Jun 6.Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 7.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 8.Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany 9.Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany 10.Hanhart, Christoph
推荐引用方式 GB/T 7714	Yan, MJ,Liu, XH,Gonzalez-Solis, S,et al. New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states[J]. PHYSICAL REVIEW D,2018,98(9):91502.
APA	Yan, MJ.,Liu, XH.,Gonzalez-Solis, S.,Guo, FK.,Hanhart, C.,...&Zou, BS.(2018).New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states.PHYSICAL REVIEW D,98(9),91502.
MLA	Yan, MJ,et al."New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states".PHYSICAL REVIEW D 98.9(2018):91502.