Study of π⁺π^- Pair Production in a Two-Photon Process at TRISTAN

VENUS Collaboration Fumiaki Yabuki,Koya Abe,Katsuya Amako,Yasuo Arai,Tatsumi Arima,Yuzo Asano,Masami Chiba,Yasuo Chiba,Motomasa DAIGO,Mineo Fukawa,Yasutaka Fukushima,Junji Haba,Yasuo Hemmi,Masato Higuchi,Fujio Hinode,Tachishige Hirose,Yasuhiro Homma,Naoyasu Hosoda,Nobuhiro Ishihara,Nobuyuki Kanda,Nobuyuki Kanematsu,Junichi Kanzaki,Ryusaburo Kikuchi,Takahiko Kondo, Timo T. Korhonen,Andreas Krüger,Hisaya Kurashige,Jimmy Macnaughton, Emiko Kanatani Matsuda,Takayuki Matsui,Makoto Miura,Kozo Miyake,Shigeki Mori,Yorikiyo Nagashima,Teruo Nakamura,Itsuo Nakano,Shigeru Odaka,Kazuo Ogawa,Taro Ohama,Takashi Ohsugi,Hiroshi Ohyama,Atsushi Okamoto,Atsuo Ono,Takashi Oyama,Hiroshi Sakamoto,Makoto Sakuda,Minoru Sato,Nobuaki Sato,Masaomi Shioden,Junpei Shirai,Masashi Shirakata,Takayuki Sumiyoshi,Atsumu Suzuki,Yoshihisa Takada,Hiroyuki Takaki,Fumihiko Takasaki,Masato Takita,Norio Tamura,Keijiro Tobimatsu,Toru Tsuboyama,Sadaharu Uehara,Yoshinobu Unno,Michiaki Utsumi,Yoshiyuki Watase,Yoshikazu Yamada,Taketora Yamagata,Yasushige Yonezawa,Hajime Yoshida

Journal of The Physical Society of Japan（1995）

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摘要

We measured the cross section for the γγ→π + π - process in the pion pair invariant mass range of 1.0–1.5 GeV/ c 2 with the VENUS detector at TRISTAN. The γγ decay width of the f 2 (1270) resonance was obtained by using Vermaseren's model and a partial wave analysis. The results from both analyses were in good agreement. The partial wave analysis indicated the presence of a J=0 component around at 1.2 GeV/ c 2 with a resonance-like structure.

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关键词

process,two-photon

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Study of π+π- Pair Production in a Two-Photon Process at TRISTAN

Study of π⁺π^- Pair Production in a Two-Photon Process at TRISTAN