Understanding the proton spin "puzzle" with a new "minimal" quark model
文献类型：期刊论文
| 作者 | Ma, BQ; Schmidt, I; Yang, JJ; Ma, BQ , Peking Univ, Dept Phys, Beijing 100871, Peoples R China. |
| 刊名 | EUROPEAN PHYSICAL JOURNAL A
 |
| 出版日期 | 2001 |
| 卷号 | 12期号:3页码:353-359 |
| 关键词 | Deep-inelastic-scattering Isospin Symmetry-breaking Light-cone Representation Structure-function G1(x) Nn Form-factor Flavor Asymmetry Melosh Rotation Wave-function Nucleon Sea Sum-rules |
| ISSN号 | 1434-6001 |
| 英文摘要 | We investigate the spin structure of the nucleon in an extended Jaffe-Lipkin quark model. In addition to the conventional 3q structure, different (3q)(Q (Q) over bar) admixtures in the nucleon wave function are also taken into account. The contributions to the nucleon spin from various components of the nucleon wave function are. discussed. The effect due to the Melosh-Wigner rotation is also studied. It is shown that the Jaffe-Lipkin term is only important when antiquarks are negatively polarized. We arrive at a new "minimal" quark model, which is close to the naive quark model, in order to understand the proton spin "puzzle". |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000173916800014 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13646]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Ma, BQ , Peking Univ, Dept Phys, Beijing 100871, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ma, BQ,Schmidt, I,Yang, JJ,et al. Understanding the proton spin "puzzle" with a new "minimal" quark model[J]. EUROPEAN PHYSICAL JOURNAL A,2001,12(3):353-359. |
| APA | Ma, BQ,Schmidt, I,Yang, JJ,&Ma, BQ , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(2001).Understanding the proton spin "puzzle" with a new "minimal" quark model.EUROPEAN PHYSICAL JOURNAL A,12(3),353-359. |
| MLA | Ma, BQ,et al."Understanding the proton spin "puzzle" with a new "minimal" quark model".EUROPEAN PHYSICAL JOURNAL A 12.3(2001):353-359. |
入库方式： OAI收割
来源：理论物理研究所
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