Observation of exclusive η production in two photon interactions at TRISTAN

Autor: N. Nakajima, Takashi Sasaki, S. S. Myung, Hyunyong Kim, H. Miyata, Y. Yamashita, Y. Sakai, D. Y. Kim, Kazuo Abe, K. Gotow, H. S. Ahn, C. Rosenfeld, A. M. Bacala, M. Shirai, T. J. Wang, J. S. Kang, A. Abashian, Yuki Fujii, R. L. Lander, S. Kobayashi, A. Kimura, Tsunehiko Omori, T. Nozaki, Moo Hyun Lee, K. Ueno, Saroj Kumar Sahu, Richard Breedon, S. K. Choi, Hiroyuki Sagawa, M. Sato, N. Takashimizu, A. Maki, L. Y. Zheng, Winston Ko, S.L. Olsen, P. N. Kirk, T. Aso, L. E. Piilonen, J. Rowe, Yasuhiro Sugimoto, A. Murakami, S. K. Kim, Kazumasa Miyano, Susumu Terada, S. Behari, Yoshimasa Kurihara, Steve Schnetzer, Y. Takaiwa, S. Matsumoto
Rok vydání: 1998
Předmět:
Zdroj: Physics Letters B. 424:405-410
ISSN: 0370-2693
Popis: We observe ηc production in the two photon process e+e−→e+e−ηc at an e+e− center-of-mass energy of 58 GeV. We determine the radiative decay width Γγγ(ηc) to be 27±16(sta)±10(sys) keV.
Databáze: OpenAIRE