Velocity-dependent transverse momentum distribution of fragments produced from Ar-40+ Be-9 at 95 MeV/nucleon
文献类型：期刊论文
| 作者 | Momota, S.1; Tanihata, I.2; Ozawa, A.3; Notani, M.4; Yoshida, K.5; Morimoto, K.5; Yamaguchi, T.6; Onishi, T.7; Yoshida, A.; Watanabe, Y. X.8 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2015-08-10 |
| 卷号 | 92页码:15 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.92.024608 |
| 英文摘要 | Transverse momentum (P-T) distributions of projectilelike fragments produced at intermediate energy are investigated. P-T distributions of fragments with mass A(F) = 10-37, produced from an Ar-40 beam with E = 95 MeV/nucleon and a Be target, are observed as a function of fragment velocity by using the Rikagaku Kenkyusho (RIKEN) Projectile Fragment Separator at RIKEN. The width of P-T distribution (sigma(T)) decreases monotonically with longitudinal momentum (P-L). The decreasing trend shows a clear dependence on fragment mass. The observed sigma(T) is analyzed with a linear function and successfully reproduced by a parameter to characterize the decreasing trend. sigma(T) at the primary beam velocity shows good agreement with the Goldhaber formula, which is obtained on the basis of the contribution of the Fermi momentum. In contrast, the sigma(T) at the center of the P-L distribution as determined by using the fits and parametrized energy loss in the fragmentation process is consistent with the width, which includes an additional contribution from the orbital deflection of the projectile. The antisymmetrized molecular-dynamics calculation indicates that the contribution of impact parameters is an important factor in understanding the behavior of the P-T distribution. In addition, the practical formulation for sigma(T) obtained in the present study enables a reliable characterization of the fragments, which would be applicable to various research fields involving, for example, radioactive nuclear beams. |
| WOS关键词 | PROJECTILE FRAGMENTATION ; HEAVY-IONS ; COLLISIONS ; MATTER ; O-16 |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000359345300006 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/40319]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Momota, S. |
| 作者单位 | 1.Kochi Univ Technol, Kochi 7828502, Japan 2.Osaka Univ, RCNP, Ibaraki, Osaka 5670047, Japan 3.Univ Tsukuba, Inst Phys, Ibaraki 3058571, Japan 4.Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA 5.RIKEN, Wako, Saitama, Japan 6.Saitama Univ, Dept Phys, Saitama 3388570, Japan 7.Hitachi High Technol Co, Hitachinaka, Ibaraki 3128504, Japan 8.High Energy Accelerator Res Org KEK, Ibaraki 3050801, Japan 9.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 10.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan |
| 推荐引用方式 GB/T 7714 | Momota, S.,Tanihata, I.,Ozawa, A.,et al. Velocity-dependent transverse momentum distribution of fragments produced from Ar-40+ Be-9 at 95 MeV/nucleon[J]. PHYSICAL REVIEW C,2015,92:15. |
| APA | Momota, S..,Tanihata, I..,Ozawa, A..,Notani, M..,Yoshida, K..,...&Ono, A..(2015).Velocity-dependent transverse momentum distribution of fragments produced from Ar-40+ Be-9 at 95 MeV/nucleon.PHYSICAL REVIEW C,92,15. |
| MLA | Momota, S.,et al."Velocity-dependent transverse momentum distribution of fragments produced from Ar-40+ Be-9 at 95 MeV/nucleon".PHYSICAL REVIEW C 92(2015):15. |
入库方式： OAI收割
来源：近代物理研究所
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