The axial vector resonances, a1 and h1, in the π−p charge exchange reaction

Autor: N. Horikawa, Ryuichi Takashima, K. Maruyama, N. Tamura, A. Itano, Hideki Okuno, Toru Sato, K. Imai, I. Maeda, Y. Ishizaki, Chihiro Ohmori, Kunikazu Mori, Takashi Nakamura, M. Kurashina, T. Iwata, Susumu Inaba, Y. Inagaki, A. Ando, Tsuneaki Tsuru, Toru Nakanishi, T. Inagaki, A. Murakami, J. Shirai, A. Sasaki, Kazuhito Ohmi, Kunio Takamatsu, T. Matsuda, Yoshiji Yasu, S. Kobayashi, S. Fukui
Rok vydání: 1991
Předmět:
Zdroj: Nuclear Physics B - Proceedings Supplements. 21:98-102
ISSN: 0920-5632
DOI: 10.1016/0920-5632(91)90242-7
Popis: A partial-wave analysis based on the isobar model has been carried out for a high statistics π + π − π 0 data in the π − p charge exchange reaction in the mass range between 0.88 and 1.44 GeV. Two axial-vector resonances, a 1 (1260) and h 1 (1170), were observed in the analysis. The masses and widths of a 1 and h 1 were determined by fitting the partial-wave amplitude to the Breit Wigner formula at four t' regions.
Databáze: OpenAIRE