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 |
| DOI | 10.1103/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 |
| 推荐引用方式 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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