Near-ThresholdΛ(1520)Production by theγ→p→K+Λ(1520)Reaction at ForwardK+Angles
| العنوان: | Near-ThresholdΛ(1520)Production by theγ→p→K+Λ(1520)Reaction at ForwardK+Angles |
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| المؤلفون: | T. Matsuda, Z. Y. Kim, S. I. Nam, J. K. Ahn, H. Kawai, Akira Shimizu, Tetsuhiko Yorita, T. Ooba, S. C. Wang, W. C. Chang, Tsutomu Mibe, P. M. Shagin, H. Kohri, Alexander I. Titov, T. Ishikawa, Masaharu Nomachi, Y. Shiino, M. Niiyama, Hajime Shimizu, H. Fujimura, Y. Asano, D. S. Ahn, Chary Rangacharyulu, C. W. Wang, A. Wakai, Tomoaki Hotta, R. G. T. Zegers, N. Matsuoka, Y. Toi, K. Imai, Y. Miyachi, S. Daté, T. Nakano, M. Fujiwara, Takuya Sasaki, S. Makino, N. Kumagai, K. Yonehara, M. Sumihama, Hiroyuki Toyokawa, Masato Yoshimura, Yuji Ohashi, Atsushi Hosaka, Mizuki Morita, K. Kino, H. Ejiri, S. Hasegawa, K. Hicks, Haruo Ohkuma, Hidetoshi Akimune, D. S. Oshuev, Atsushi Sakaguchi, T. Iwata, M. Miyabe, T. Matsumura, Shuji Fukui, M. Yosoi, Yorihito Sugaya, Norihito Muramatsu |
| المصدر: | Physical Review Letters. 104 |
| بيانات النشر: | American Physical Society (APS), 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Physics, Baryon, Meson, Hadron, General Physics and Astronomy, Production (computer science), Elementary particle, Atomic physics, Nuclear Experiment, Nucleon, Lambda baryon, Resonance (particle physics) |
| الوصف: | Differential cross sections and photon-beam asymmetries for the $\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}}p\ensuremath{\rightarrow}{K}^{+}\ensuremath{\Lambda}(1520)$ reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at $0.6l\mathrm{cos} {\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}^{K}l1$. A new bump structure was found at $W\ensuremath{\simeq}2.11\text{ }\text{ }\mathrm{GeV}$ in the cross sections. The bump is not well reproduced by theoretical calculations introducing a nucleon resonance with $J\ensuremath{\le}\frac{3}{2}$. This result suggests that the bump might be produced by a nucleon resonance possibly with $J\ensuremath{\ge}\frac{5}{2}$ or by a new reaction process, for example, an interference effect with the $\ensuremath{\phi}$ photoproduction having a similar bump structure in the cross sections. |
| تدمد: | 1079-7114 0031-9007 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::94d640816fd2e39b18cd597ac985eff2 https://doi.org/10.1103/physrevlett.104.172001 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........94d640816fd2e39b18cd597ac985eff2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
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