| Autor: |
T. Nakamura, Akira Narita, Takemi Nakagawa, A. Kishi, Kunio Takamatsu, K. Ohmi, Kazuhiko Kobayashi, Chihiro Ohmori, Susumu Inaba, Shuji Fukui, H.Y. Yoshida, S. Ishimoto, T. Tsubaki, Kunikazu Mori, I. Yamauchi, A. Wakai, H. Aoyagi, Y. Ishizaki, Minoru Takasaki, T. Matsuda, Yoshiji Yasu, T. Samoto, N. Hayashi, Tsuneaki Tsuru, Naoaki Horikawa, Toru Nakanishi, Shigeo Nakamura, K. Matsuda, J. Iizuka, Takehisa Hasegawa, Hajime Shimizu, Kiyosumi Tsuchiya, E. Kanatani, H. Kawai, Y. Tajima, Takahiro Iwata, T. Kinashi |
| Rok vydání: |
1993 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 314:246-254 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(93)90456-r |
| Popis: |
Data of the ηπ− system were obtained in the reaction π−p → ηπ−p at 6.3 GeV/c beam momentum. About 17 k events of ηπ− were collected in the mass range 0.8 ⩽ Mηπ- ⩽ 1.8 GeV/c2 and in the range of the momentum transfer squared 0.075 ⩽ |t′| ⩽ 0.60 (GeV/c)2. A large forward-backward asymmetry was observed around 1.3 GeV/c2 in the Gottfried-Jackson frame of the ηπ− system. A partial wave analysis of the data was performed. A peak of the D+ wave attributed to a2 (1320) is clearly seen. An enhancement is observed around 1.3 GeV/c2 in the P+ wave. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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