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Prog. Theor. Phys. Vol. 89 No. 3 (1993) pp. 679-696

Measurement of the Lifetimes of Charged and Neutral Beauty Hadrons

Fermilab E653 Collaboration K. Kodama,¹⁾ N. Ushida,¹⁾ A. Mokhtarani,²⁾ V. S. paolone,²⁾ J. T. Volk,²⁾ J. O. Wilcox,²⁾ P. M. Yager,²⁾ R. M. Edelstein,³⁾ A. P. Freyberger,³⁾ D. B. Gibaut,³⁾ R. J. Lipton,³⁾ W. R. Nichols,³⁾ D. M. Potter,³⁾ J. S. Russ,³⁾ C. Zhang,³⁾ Y. Zhang,³⁾ H. I. Jang,⁴⁾ J. Y. Kim,⁴⁾ T. I. Kim,⁴⁾ I. T. Kim,⁴⁾ M. Y. Pac,⁴⁾ B. R. Baller,⁵⁾ R. J. Stefanski,⁵⁾ K. Nakazawa,⁶⁾ K. S. Chung,⁷⁾ S. H. Chung,⁷⁾ D. C. Kim,⁷⁾ I. G. Park,⁷⁾ M. S. Park,⁷⁾ J. S. Song,⁷⁾ C. S. Yoon,⁷⁾ M. Chikawa,⁸⁾ T. Abe,⁹⁾ T. Fujii,⁹⁾ G. Fujioka,⁹⁾ K. Fujiwara,⁹⁾ H. Fukushima,⁹⁾ T. Hara,⁹⁾ Y. Takahashi,⁹⁾ K. Taruma,⁹⁾ Y. Tsuzuki,⁹⁾ C. Yokohama,⁹⁾ S. D. Chang,¹⁰⁾ B. G. Cheon,¹⁰⁾ J. H. Cho,¹⁰⁾ J. S. Kang,¹⁰⁾ C. O. Kim,¹⁰⁾ K. Y. Kim,¹⁰⁾ T. Y. Kim,¹⁰⁾ J. C. Lee,¹⁰⁾ S. B. Lee,¹⁰⁾ G. Y. Lim,¹⁰⁾ S. W. Nam,¹⁰⁾ T. S. Shin,¹⁰⁾ K. S. Sim,¹⁰⁾ J. K. Woo,¹⁰⁾ Y. Isokane,¹¹⁾ Y. Tsuneoka,¹¹⁾ S. Aoki,¹²⁾ A. Gauthier,¹²⁾ K. Hoshino,¹²⁾ H. Kitamura,¹²⁾ M. Kabayashi,¹²⁾ M. Miyanishi,¹²⁾ K. Nakamura,¹²⁾ M. Nakamura,¹²⁾ Y. Nakamura,¹²⁾ S. Nakanishi,¹²⁾ K. Niu,¹²⁾ K. Niwa,¹²⁾ M. Nomura,¹²⁾ H. Tajima,¹²⁾ S. Yoshida,¹²⁾ M. Aryal,¹³⁾ J. M. Dunlea,¹³⁾ S. G. Freederiksen,¹³⁾ S. Kuramata,¹³⁾ B. G. Lundberg,¹³⁾ G. A. Oleynik,¹³⁾ N. W. Reay,¹³⁾ K. Reibel,¹³⁾ R. A. Sidwell,¹³⁾ N. R. Stanton,¹³⁾ K. Moriyama,¹⁴⁾ H. Shibata,¹⁴⁾ G. R. Kalbfleisch,¹⁵⁾ P. Skubic,¹⁵⁾ J. M. Snow,¹⁵⁾ S. E. Willis,¹⁵⁾ O. Kusumoto,¹⁶⁾ K. Nakamura,¹⁶⁾ T. Okusawa,¹⁶⁾ M. Teranaka,¹⁶⁾ T. Tominaga,¹⁶⁾ T. Yoshida,¹⁶⁾ H. Yuuki,¹⁶⁾ H. Okabe,¹⁷⁾ J. Yokota,¹⁷⁾ M. Adachi,¹⁸⁾ M. Kazuno,¹⁸⁾ E. Niu,¹⁸⁾ H. Shibuya,¹⁸⁾ S. WAtanabe,¹⁸⁾ I. Ohtsuka,¹⁹⁾ Y. Sato,¹⁹⁾ I. Tezuka,¹⁹⁾ S. Y. Bahk²⁰⁾ and S. K. Kim²⁰⁾

¹⁾Aichi University of Education, Kariya 448
²⁾University of California (Davis), Davis, CA 95616
³⁾Carnegie-Mellon University, Pittsburgh, PA 15213
⁴⁾Chonnam National University, Kwangju 500-757
⁵⁾Fermi National Accelerator Laboratory, Batavia, IL 60510
⁶⁾Gifu University, Gifu 501-11
⁷⁾Gyeongsang National University, Jinju 660-300
⁸⁾Kinki University, Higashi-Osaka 577
⁹⁾Kobe University, Kobe 657
¹⁰⁾Korea University, Seoul 136-701
¹¹⁾Nagoya Institute of Technology, Nagoya 466
¹²⁾Nagoya University, Nagoya 464-01
¹³⁾The Ohio State University, Columbus, OH 43210
¹⁴⁾Okayama University, Okayama 700
¹⁵⁾University of Oklahoma, Norman, OK 73019
¹⁶⁾Osaka City University, Osaka 558
¹⁷⁾Science Education Institute of Osaka Prefecture, Osaka 558
¹⁸⁾Toho University, Funabashi 274
¹⁹⁾Utsunomiya University, Utsunomiya 321
²⁰⁾Wonkwang University, Iri 570-749

(Received August 31, 1992)

Abstract:

We report on the characteristics of 9 bb pair events produced by a 600 GeV/c π^- beam and detected in the hybrid emulsion spectrometer of Fermilab experiment E653. The measured lifetimes for samples of 12 neutral and 6 charged beauty hadrons are τ_b⁰ = 0.81^+0.34+0.08_-0.22-0.02 ps, and τ_b^± = 3.84^+2.73+0.80_-1.36-0.16 ps.

URL : http://ptp.ipap.jp/link?PTP/89/679/
DOI : 10.1143/PTP.89.679

[ Full Text PDF : FREE ACCESS (1766K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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