First measurement of coherent phi-meson photoproduction from he-4 near threshold
文献类型：期刊论文
| 作者 | Hiraiwa, T.1,2; Yosoi, M.1; Niiyama, M.2; Morino, Y.3; Nakatsugawa, Y.4; Sumihama, M.5; Ahn, D. S.6; Ahn, J. K.7; Chang, W. C.8; Chen, J. Y.9 |
| 刊名 | Physical review c
 |
| 出版日期 | 2018-03-27 |
| 卷号 | 97期号:3页码:6 |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/physrevc.97.035208 |
| 通讯作者 | Hiraiwa, t.() |
| 英文摘要 | The differential cross sections and decay angular distributions for coherent phi-meson photoproduction from helium-4 are measured for the first time at forward angles with linearly polarized photons in the energy range e-gamma = 1.685-2.385 gev. thanks to the target with spin-parity j(p) = 0(+), unnatural-parity exchanges are absent, and thus natural-parity exchanges can be investigated clearly. the decay asymmetry with respect to photon polarization is shown to be very close to the maximal value. this ensures the strong dominance (> 94%) of natural-parity exchanges in this reaction. to evaluate the contribution from natural-parity exchanges to the forward cross section (theta = 0 degrees) for the gamma p -> phi p reaction near threshold, the energy dependence of the forward cross section (theta = 0 degrees) for the gamma he-4 -> phi he-4 reaction is analyzed. the comparison to gamma p ->phi p data suggests that enhancement of the forward cross section arising from natural-parity exchanges and/or destructive interference between natural-parity and unnatural-parity exchanges is needed in the gamma p ->phi p reaction near threshold. |
| WOS关键词 | SCATTERING ; POMERON ; PHOTON ; SLOPE |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Nuclear |
| 语种 | 英语 |
| WOS记录号 | WOS:000428389300004 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178137 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Hiraiwa, T. |
| 作者单位 | 1.Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan 2.Kyoto Univ, Dept Phys, Kyoto 6068502, Japan 3.KEK, High Energy Accelerator Org, Tsukuba, Ibaraki 3050801, Japan 4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 5.Gifu Univ, Dept Educ, Gifu 5011193, Japan 6.Nishina Ctr Accelerator Based Sci, RIKEN, Wako, Saitama 3510198, Japan 7.Korea Univ, Dept Phys, Seoul 02841, South Korea 8.Acad Sinica, Inst Phys, Taipei 11529, Taiwan 9.Natl Synchrotron Radiat Res Ctr, Light Source Div, Hsinchu 30076, Taiwan 10.Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795143, Japan |
| 推荐引用方式 GB/T 7714 | Hiraiwa, T.,Yosoi, M.,Niiyama, M.,et al. First measurement of coherent phi-meson photoproduction from he-4 near threshold[J]. Physical review c,2018,97(3):6. |
| APA | Hiraiwa, T..,Yosoi, M..,Niiyama, M..,Morino, Y..,Nakatsugawa, Y..,...&Yorita, T..(2018).First measurement of coherent phi-meson photoproduction from he-4 near threshold.Physical review c,97(3),6. |
| MLA | Hiraiwa, T.,et al."First measurement of coherent phi-meson photoproduction from he-4 near threshold".Physical review c 97.3(2018):6. |
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