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Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900)
CLQCD collaboration
2014
发表期刊PHYSICAL REVIEW D
卷号89期号:9
通讯作者Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
摘要In this exploratory lattice study, low-energy scattering of the (DD*)(+/-) meson system is analyzed using lattice QCD with N-f = 2 twisted mass fermion configurations with three pion mass values. The calculation is performed within single-channel Luscher's finite-size formalism. The threshold scattering parameters, namely the scattering length a(0) and the effective range r(0), for the s-wave scattering in J(P) = 1(+) channel are extracted. For the cases in our study, the interaction between the two charmed mesons is weakly repulsive. Our lattice results therefore do not support the possibility of a shallow bound state for the two mesons for the pion mass values we studied. This calculation provides some useful information on the nature of the newly discovered resonance-like structure Z(c)(3900) by various experimental groups.
关键词QUANTUM-FIELD THEORIES FINITE-VOLUME PARTICLE STATES LATTICE DEPENDENCE SPECTRUM MATRIX
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.89.094506
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000339551500003
引用统计
被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213744
专题理论物理室
作者单位中国科学院高能物理研究所
推荐引用方式
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CLQCD collaboration. Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900)[J]. PHYSICAL REVIEW D,2014,89(9).
APA CLQCD collaboration.(2014).Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900).PHYSICAL REVIEW D,89(9).
MLA CLQCD collaboration."Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900)".PHYSICAL REVIEW D 89.9(2014).
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