Ground state pseudoscalar mesons on the light front: From the light to heavy sector
文献类型：期刊论文
| 作者 | Shi, Chao1; Li, Ming1; Chen, Xurong2,3 ; Jia, Wenbao1
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2021-11-10 |
| 卷号 | 104期号:9页码:11 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.104.094016 |
| 通讯作者 | Shi, Chao(cshi@nuaa.edu.cn) |
| 英文摘要 | We extract the leading Fock state light-front wave functions (LF-LFWFs) of both the light and heavy pseudoscalar mesons, e.g., the pion (at masses of 130, 310, and 690 MeV), eta(c) and eta(b), from their covariant Bethe-Salpeter wave functions within the rainbow-ladder truncation. It is shown that the LF-LFWFs get narrower in x (the longitudinal momentum fraction of the meson carried by the quark) with the increasing current quark mass, and the leading twist parton distribution amplitudes inherit this feature. In the case of the pion, the LF-LFWFs only contribute about 30% of the total Fock state normalization, indicating the presence of significant higher Fock states within. In contrast, in the cases of the eta(c) and eta(b), the LF-LFWFs contribute more than 90%, suggesting the Q (Q) over bar valence Fock state truncation as a good approximation for heavy mesons. We thus study the three-dimensional parton distributions of the eta(c) and eta(b) with the unpolarized generalized parton distribution function (GPD) and the transverse momentum-dependent parton distribution function. Through the gravitational form factors in connection with the GPD, the mass radii of the eta(c) and eta(b) in the light cone frame are determined to be r(E,LC)(eta c) = 0.150 and r(E,LC)(eta b) = 0.089 fm, respectively. |
| WOS关键词 | CONE WAVE-FUNCTION ; DISTRIBUTION AMPLITUDES ; ASYMPTOTIC-BEHAVIOR ; PARTON DISTRIBUTION ; EXCLUSIVE PROCESSES ; QUARK ; EQUATIONS ; MODEL ; MASS |
| 资助项目 | National Natural Science Foundation of China[11905104] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB34030301] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000718588100005 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences |
| 源URL | [http://119.78.100.186/handle/113462/140018]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Shi, Chao |
| 作者单位 | 1.Nanjing Univ Aeronaut & Astronaut, Dept Nucl Sci & Technol, Nanjing 210016, Peoples R China 2.South China Normal Univ, Inst Quantum Matter, Guangdong Prov Key Lab Nucl Sci, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Chao,Li, Ming,Chen, Xurong,et al. Ground state pseudoscalar mesons on the light front: From the light to heavy sector[J]. PHYSICAL REVIEW D,2021,104(9):11. |
| APA | Shi, Chao,Li, Ming,Chen, Xurong,&Jia, Wenbao.(2021).Ground state pseudoscalar mesons on the light front: From the light to heavy sector.PHYSICAL REVIEW D,104(9),11. |
| MLA | Shi, Chao,et al."Ground state pseudoscalar mesons on the light front: From the light to heavy sector".PHYSICAL REVIEW D 104.9(2021):11. |
入库方式： OAI收割
来源：近代物理研究所
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