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Improved measure of local chirality
Draper, T; Alexandru, A; Chen Y(陈莹); Chen, Y; Dong, SJ; Horvath, I; Lee, F; Mathur, N; Thacker, HB; Tamhankar, S; Zhang, JB
2005
发表期刊NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
卷号140页码:623-625
通讯作者Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA ; Jefferson Lab, Newport News, VA 23606 USA ; Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA ; Univ Adelaide, CSSM, Adelaide, SA 5005, Australia ; Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia
文章类型Article; Proceedings Paper
摘要It is popular to probe the structure of the QCD vacuum indirectly by studying individual fermion eigenmodes, because this provides a natural way to filter out UV fluctuations. The double-peaking in the distribution of the local chiral orientation parameter (X) has been offered as evidence, by some, in support of a particular model of the vacuum. Here we caution that the X-distribution peaking varies significantly with various versions of the definition of X. Furthermore, each distribution varies little from that resulting from a random reshuffling of the left-handed (and independently the right-handed) fields, which destroys any QCD-induced left-right correlation; that is, the double-peaking is mostly a phase-space effect. We propose a new universal definition of the X parameter whose distribution is uniform for randomly reshuffled fields. Any deviations from uniformity for actual data can then be directly attributable to QCD-induced dynamics. We find that the familiar double peak disappears.
学科领域Physics
DOI10.1016/j.nuclphysbps.2004.11.339
URL查看原文
语种英语
WOS研究方向Physics
WOS类目Physics, Particles & Fields
WOS记录号WOS:000227264000149
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238137
专题理论物理室
作者单位中国科学院高能物理研究所
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Draper, T,Alexandru, A,Chen Y,et al. Improved measure of local chirality[J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS,2005,140:623-625.
APA Draper, T.,Alexandru, A.,陈莹.,Chen, Y.,Dong, SJ.,...&Zhang, JB.(2005).Improved measure of local chirality.NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS,140,623-625.
MLA Draper, T,et al."Improved measure of local chirality".NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS 140(2005):623-625.
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