Study of pentaquarks on the lattice with overlap fermions
Mathur, N; Lee, FX; Alexandru, A; Bennhold, C; Chen, Y; Dong, SJ; Draper, T; Horvath, I; Liu, KF; Tamhankar, S; Zhang, JB; Chen Y(陈莹)
刊名PHYSICAL REVIEW D
2004
卷号70期号:7页码:74508
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.70.074508
通讯作者Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA ; George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA ; Jefferson Lab, Newport News, VA 23606 USA ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; Univ Adelaide, CSSM, Adelaide, SA 5005, Australia ; Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia
文章类型Article
英文摘要We present a quenched lattice QCD calculation of spin-1/2 five-quark states with uudd (s) over bar quark content for both positive and negative parities. We do not observe any bound pentaquark state in these channels for either I=0 or I=1. The states we found are consistent with KN scattering states which are checked to exhibit the expected volume dependence of the spectral weight. The results are based on overlap-fermion propagators on two lattices, 12(3)x28 and 16(3)x28, with the same lattice spacing of 0.2 fm, and pion mass as low as similar to180 MeV.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000224799600066
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被引频次:79[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/311005/240792
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Mathur, N,Lee, FX,Alexandru, A,et al. Study of pentaquarks on the lattice with overlap fermions[J]. PHYSICAL REVIEW D,2004,70(7):74508.
APA Mathur, N.,Lee, FX.,Alexandru, A.,Bennhold, C.,Chen, Y.,...&陈莹.(2004).Study of pentaquarks on the lattice with overlap fermions.PHYSICAL REVIEW D,70(7),74508.
MLA Mathur, N,et al."Study of pentaquarks on the lattice with overlap fermions".PHYSICAL REVIEW D 70.7(2004):74508.
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