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Publication
Featured researches published by F. Bird.
Nucl.Phys.Proc.Suppl. | 1990
D. Aston; T. Tauchi; H. Hayashii; Y. Kwon; K. Fujii; J. Martinez; R. Endorf; A. Sugiyama; B. N. Ratcliff; Paul Elliot Rensing; David W.G.S. Leith; Takafumi Matsui; S. Iwata; P. Sinervo; Paul F. Kunz; Anya M. Waite; S. Williams; Naoki Awaji; M. Nussbaum; N. Toge; Brian T. Meadows; F. Bird; L. Levinson; W. M. Dunwoodie; Stuart L. Shapiro; A. Miyamoto; T. Bienz; G. Tarnopolsky; T. Shimomura; R. Kajikawa
Preliminary results are presented from an analysis of the π+π− system produced in the reaction K−p → π+π−Λ at 11 GeV/c observed with the LASS spectrometer at SLAC. A clear ϱ - ω interference effect is observed, and a fit to the natural parity exchange mass distribution yields a branching fraction estimate of (1.7 ± 0.5) % for the decay ω → π+π−. An amplitude analysis reveals that the bump in the mass distribution in the vicinity of the ƒ2(1270) actually contains a significant P-wave component. The mass dependence of the corresponding amplitude and phase is well described by a resonant Breit-Wigner line-shape with mass (1266 ± 14) MeV/c2, width (166 ± 35) MeV/c2, and estimated elasticity ∼ 5%. The interpretation of this state as the first radial excitation of the ϱ(770) is discussed.
Invited talk given at | 1988
D. Aston; T. Tauchi; H. Hayashii; T. Shimomura; K. Fujii; R. Endorf; A. Sugiyama; B. N. Ratcliff; David W.G.S. Leith; Takafumi Matsui; S. Iwata; P. Sinervo; Paul F. Kunz; Anya M. Waite; S. Williams; Naoki Awaji; M. Nussbaum; N. Toge; Brian T. Meadows; F. Bird; L. Levinson; W. M. Dunwoodie; Stuart L. Shapiro; A. Miyamoto; T. Bienz; G. Tarnopolsky; R. Kajikawa; K. Ukai; S. Suzuki; J. D'Amore
The status of strangeonium spectroscopy is re–assessed following our recent high statistics study of K− induced hypercharge exchange reactions. The implications of our results for the status of glueball, or otherwise exotic, candidates observed in the same decay modes but produced by different mechanisms are also discussed.
Physics Letters B | 1987
D. Aston; Naoki Awaji; T. Bienz; F. Bird; J. D'Amore; W. M. Dunwoodie; R. Endorf; K. Fujii; H. Hayashii; S. Iwata; W. R. Johnson; R. Kajikawa; P. Kunz; David W.G.S. Leith; Lorne Levinson; Tetsuo Matsui; Brian T. Meadows; A. Miyamoto; M. Nussbaum; H. Ozaki; C. O. Pak; B. N. Ratcliff; Daniel Schultz; Stuart L. Shapiro; T. Shimomura; P. Sinervo; A. Sugiyama; Satoru Suzuki; G. Tarnopolsky; T. Tauchi
Archive | 1996
James Napolitano; Michael Witkowski; Ai Wright; J.P. Cummings; Dennis P. Weygand; D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; Wayde J. W. Johnson; P. Kunz; Y. J. Kwon; David W.G.S. Leith; L. Levinson; B. N. Ratcliff; Paul Elliot Rensing; Daniel Schultz; Stewart Shapiro; P. Sinervo; G. Tarnopolsky; N. Toge; Anya M. Waite; Stephen H. Williams; Naoki Awaji; K. Fujii; Hideaki Hayashi; Satoshi Iwata; R. Kajikawa; Takafumi Matsui; Akio Miyamoto
Archive | 1992
B. N. Ratcliff; D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; William B. Johnson; P. Kunz; Y. J. Kwon; David W.G.S. Leith; L. Levinson; Paul Elliot Rensing; Daniel Schultz; Stewart Shapiro; P. Sinervo; N. Toge; Anya M. Waite; S. Williams; Naoki Awaji; K. Fujii; H. Hayashii; Shinichiro Iwata; R. Kajikawa; Takafumi Matsui; Akio Miyamoto; Hiroshi Ozaki; C. O. Pak; Tetsu Shimomura; A. Sugiyama; S. Suzuki; T. Tauchi
Archive | 1991
D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; William B. Johnson; P. Kunz; Y. J. Kwon; David W.G.S. Leith; L. Levinson; B. N. Ratcliff; Paul Elliot Rensing; Daniel Schultz; Stewart Shapiro; P. Sinervo; G. Tarnopolsky; N. Toge; Anya M. Waite; S. Williams; Naoki Awaji; K. Fujii; H. Hayashii; Shinichiro Iwata; R. Kajikawa; Takafumi Matsui; Akio Miyamoto; Hiroshi Ozaki; C. O. Pak; Tetsu Shimomura; A. Sugiyama; S. Suzuki
Archive | 1991
D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; William B. Johnson; P. Kunz; Y. J. Kwon; David W.G.S. Leith; L. Levinson; B. N. Ratcliff; Paul Elliot Rensing; Daniel Schultz; Stewart Shapiro; P. Sinervo; G. Tarnopolsky; N. Toge; Anya M. Waite; S. Williams; Naoki Awaji; K. Fujii; H. Hayashii; Shinichiro Iwata; R. Kajikawa; Takafumi Matsui; Akio Miyamoto; Hiroshi Ozaki; C. O. Pak; Tetsu Shimomura; A. Sugiyama; S. Suzuki
Archive | 1991
D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; Wayde J. W. Johnson; P. Kunz; Y. J. Kwon; David W.G.S. Leith; L. Levinson; B. N. Ratcliff; Paul Elliot Rensing; Daniel Schultz; Stewart Shapiro; P. Sinervo; G. Tarnopolsky; N. Toge; Anya M. Waite; S. Williams; Naoki Awaji; K. Fujii; H. Hayashii; Satoshi Iwata; R. Kajikawa; Takafumi Matsui; Akio Miyamoto; Hiroyuki Ozaki; C. O. Pak; Tetsu Shimomura; A. Sugiyama; S. Suzuki
Archive | 1989
D. Aston; T. Bienz; F. Bird; W. M. Dunwoodie; Wayde J. W. Johnson; P. Kunz; David W.G.S. Leith; L. Levinson; B. N. Ratcliff; Daniel Schultz; Stuart L. Shapiro; P. Sinervo; G. Tarnopolsky; N. Toge; Anya M. Waite; S. Williams; Naoki Awaji; K. Fujii; H. Hayashii; S. Iwata; R. Kajikawa; Takayuki Matsui; A. Miyamoto; Hitoshi Ozaki; C. O. Pak; T. Shimomura; A. Sugiyama; S. Suzuki; T. Tauchi
Physics Letters B | 1988
D. Aston; Naoki Awaji; T. Bienz; F. Bird; J. D'Amore; W. M. Dunwoodie; R. Endorf; K. Fujii; H. Hayashii; S. Iwata; W. R. Johnson; R. Kajikawa; P. Kunz; David W.G.S. Leith; Lorne Levinson; Tetsuo Matsui; Brian T. Meadows; A. Miyamoto; M. Nussbaum; H. Ozaki; C. O. Pak; B. N. Ratcliff; Daniel Schultz; Stuart L. Shapiro; T. Shimomura; P. Sinervo; A. Sugiyama; Satoru Suzuki; G. Tarnopolsky; T. Tauchi
