中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Anomalous pion production induced by nontrivial topological structure of QCD vacuum

文献类型:期刊论文

作者Kochelev, Nikolai1,2; Lee, Hee-Jung3; Zhang, Baiyang1; Zhang, Pengming1
刊名PHYSICAL REVIEW D
出版日期2015-08-27
卷号92页码:6
ISSN号1550-7998
DOI10.1103/PhysRevD.92.034025
英文摘要A new mechanism for the pion production in high energy reactions is suggested. It is related to a possibility for the direct production of the pions induced by instantons, topologically nontrivial gluonic excitations of the QCD vacuum. This mechanism does not require any fragmentation functions for the production of pseudoscalar mesons in high energy reactions with hadrons. We calculate the contribution of the new mechanism to the inclusive pi(0)-meson production in high energy proton-proton collisions. It is shown that it gives the dominant contribution to the inclusive cross sections in the few GeV region for the transverse momentum of the final pion with large rapidity. We discuss the possible applications of the new mechanism to the phenomenon of large spin effects observed in numerous high energy reactions and to particle productions in the relativistic heavy ion collisions.
WOS关键词QUARK CHROMOMAGNETIC MOMENT ; SINGLE-SPIN ASYMMETRIES ; INSTANTONS ; FRAGMENTATION
资助项目National Natural Science Foundation of China[11035006] ; National Natural Science Foundation of China[11175215] ; Chinese Academy of Sciences visiting professorship for senior international scientists[2013T2J0011] ; National Research Foundation of Korea (NRF) - Ministry of Education[2013R1A1A2009695]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000362218800006
出版者AMER PHYSICAL SOC
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences visiting professorship for senior international scientists ; National Research Foundation of Korea (NRF) - Ministry of Education
源URL[http://119.78.100.186/handle/113462/40813]  
专题中国科学院近代物理研究所
通讯作者Lee, Hee-Jung
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia
3.Chungbuk Natl Univ, Dept Phys Educ, Cheongju 361763, Chungbuk, South Korea
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GB/T 7714
Kochelev, Nikolai,Lee, Hee-Jung,Zhang, Baiyang,et al. Anomalous pion production induced by nontrivial topological structure of QCD vacuum[J]. PHYSICAL REVIEW D,2015,92:6.
APA Kochelev, Nikolai,Lee, Hee-Jung,Zhang, Baiyang,&Zhang, Pengming.(2015).Anomalous pion production induced by nontrivial topological structure of QCD vacuum.PHYSICAL REVIEW D,92,6.
MLA Kochelev, Nikolai,et al."Anomalous pion production induced by nontrivial topological structure of QCD vacuum".PHYSICAL REVIEW D 92(2015):6.

入库方式: OAI收割

来源:近代物理研究所

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