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Yan, MJ; Liu, XH; Gonzalez-Solis, S; Guo, FK; Hanhart, C; Meissner, UG; Zou, BS
New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states
发表期刊PHYSICAL REVIEW D
语种英语
关键词SUPERFLAVOR SYMMETRY MESON RESONANCES HEAVY MESONS S-MESONS DECAYS
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.
2018
ISSN2470-0010
卷号98期号:9页码:91502
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.98.091502
收录类别SCIE
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22784
专题理论物理所科研产出_SCI论文
作者单位1.[Yan, Mao-Jun
2.Gonzalez-Solis, Sergi
3.Guo, Feng-Kun
4.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
6.[Liu, Xiao-Hai
7.Hanhart, Christoph
8.Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany
9.Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
10.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
11.Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
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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.
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