Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV

M. Shirakata, M. Utsumi, K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukawa, T. Fukui, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, F. Hinode, T. Hirose, Y. Homma, Y. Hoshi, N. IshiharaN. Kanda, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. T. Korhonen, T. Kondo, T. Koseki, H. Kurashige, J. MacNaughton, T. Matsui, M. Minami, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, Y. Narita, S. Odaka, K. Ogawa, T. Ohama, T. Ohsugi, A. Okamoto, A. Ono, T. Oyama, H. Sakamoto, Makoto Sakuda, Noboru Sasao, M. Sato, H. Shibuya, M. Shioden, J. Shirai, S. Sugimoto, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, A. Taketani, M. Takita, N. Tamura, N. Terunuma, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, T. Watanabe, Y. Watase, F. Yabuki, Y. Yamada, Y. Yonezawa, H. Yoshida

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Abstract

We have measured the forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation at TRISTAN. It was made possible by detecting prompt leptons from b-quarks. The obtained asymmetry is A= -0.55±0.15±0.08. If corrected for B-meson mixing effects with the assumptions given in the text, the asymmetry becomes A=f-0.78±0.21±0.11, which is consistent with the prediction of the standard model, namely the assignment of the b-quark to the isospin doublet of the third quark generation.

Original languageEnglish
Pages (from-to)499-505
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume278
Issue number4
DOIs
Publication statusPublished - Apr 2 1992
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV. / Shirakata, M.; Utsumi, M.; Abe, K.; Amako, K.; Arai, Y.; Asano, Y.; Chiba, M.; Chiba, Y.; Daigo, M.; Fukawa, M.; Fukui, T.; Fukushima, Y.; Haba, J.; Hemmi, Y.; Higuchi, M.; Hinode, F.; Hirose, T.; Homma, Y.; Hoshi, Y.; Ishihara, N.; Kanda, N.; Kanematsu, N.; Kanzaki, J.; Kikuchi, R.; Korhonen, T. T.; Kondo, T.; Koseki, T.; Kurashige, H.; MacNaughton, J.; Matsui, T.; Minami, M.; Miyake, K.; Mori, S.; Nagashima, Y.; Nakamura, T.; Nakano, I.; Narita, Y.; Odaka, S.; Ogawa, K.; Ohama, T.; Ohsugi, T.; Okamoto, A.; Ono, A.; Oyama, T.; Sakamoto, H.; Sakuda, Makoto; Sasao, Noboru; Sato, M.; Shibuya, H.; Shioden, M.; Shirai, J.; Sugimoto, S.; Sumiyoshi, T.; Suzuki, A.; Takada, Y.; Takaki, H.; Takasaki, F.; Taketani, A.; Takita, M.; Tamura, N.; Terunuma, N.; Tobimatsu, K.; Tsuboyama, T.; Uehara, S.; Unno, Y.; Watanabe, T.; Watase, Y.; Yabuki, F.; Yamada, Y.; Yonezawa, Y.; Yoshida, H.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 278, No. 4, 02.04.1992, p. 499-505.

Research output: Contribution to journalArticle

Shirakata, M, Utsumi, M, Abe, K, Amako, K, Arai, Y, Asano, Y, Chiba, M, Chiba, Y, Daigo, M, Fukawa, M, Fukui, T, Fukushima, Y, Haba, J, Hemmi, Y, Higuchi, M, Hinode, F, Hirose, T, Homma, Y, Hoshi, Y, Ishihara, N, Kanda, N, Kanematsu, N, Kanzaki, J, Kikuchi, R, Korhonen, TT, Kondo, T, Koseki, T, Kurashige, H, MacNaughton, J, Matsui, T, Minami, M, Miyake, K, Mori, S, Nagashima, Y, Nakamura, T, Nakano, I, Narita, Y, Odaka, S, Ogawa, K, Ohama, T, Ohsugi, T, Okamoto, A, Ono, A, Oyama, T, Sakamoto, H, Sakuda, M, Sasao, N, Sato, M, Shibuya, H, Shioden, M, Shirai, J, Sugimoto, S, Sumiyoshi, T, Suzuki, A, Takada, Y, Takaki, H, Takasaki, F, Taketani, A, Takita, M, Tamura, N, Terunuma, N, Tobimatsu, K, Tsuboyama, T, Uehara, S, Unno, Y, Watanabe, T, Watase, Y, Yabuki, F, Yamada, Y, Yonezawa, Y & Yoshida, H 1992, 'Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 278, no. 4, pp. 499-505. https://doi.org/10.1016/0370-2693(92)90592-R
Shirakata, M. ; Utsumi, M. ; Abe, K. ; Amako, K. ; Arai, Y. ; Asano, Y. ; Chiba, M. ; Chiba, Y. ; Daigo, M. ; Fukawa, M. ; Fukui, T. ; Fukushima, Y. ; Haba, J. ; Hemmi, Y. ; Higuchi, M. ; Hinode, F. ; Hirose, T. ; Homma, Y. ; Hoshi, Y. ; Ishihara, N. ; Kanda, N. ; Kanematsu, N. ; Kanzaki, J. ; Kikuchi, R. ; Korhonen, T. T. ; Kondo, T. ; Koseki, T. ; Kurashige, H. ; MacNaughton, J. ; Matsui, T. ; Minami, M. ; Miyake, K. ; Mori, S. ; Nagashima, Y. ; Nakamura, T. ; Nakano, I. ; Narita, Y. ; Odaka, S. ; Ogawa, K. ; Ohama, T. ; Ohsugi, T. ; Okamoto, A. ; Ono, A. ; Oyama, T. ; Sakamoto, H. ; Sakuda, Makoto ; Sasao, Noboru ; Sato, M. ; Shibuya, H. ; Shioden, M. ; Shirai, J. ; Sugimoto, S. ; Sumiyoshi, T. ; Suzuki, A. ; Takada, Y. ; Takaki, H. ; Takasaki, F. ; Taketani, A. ; Takita, M. ; Tamura, N. ; Terunuma, N. ; Tobimatsu, K. ; Tsuboyama, T. ; Uehara, S. ; Unno, Y. ; Watanabe, T. ; Watase, Y. ; Yabuki, F. ; Yamada, Y. ; Yonezawa, Y. ; Yoshida, H. / Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1992 ; Vol. 278, No. 4. pp. 499-505.
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title = "Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV",
abstract = "We have measured the forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation at TRISTAN. It was made possible by detecting prompt leptons from b-quarks. The obtained asymmetry is A= -0.55±0.15±0.08. If corrected for B-meson mixing effects with the assumptions given in the text, the asymmetry becomes A=f-0.78±0.21±0.11, which is consistent with the prediction of the standard model, namely the assignment of the b-quark to the isospin doublet of the third quark generation.",
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TY - JOUR

T1 - Measurement of forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation around √s=60 GeV

AU - Shirakata, M.

AU - Utsumi, M.

AU - Abe, K.

AU - Amako, K.

AU - Arai, Y.

AU - Asano, Y.

AU - Chiba, M.

AU - Chiba, Y.

AU - Daigo, M.

AU - Fukawa, M.

AU - Fukui, T.

AU - Fukushima, Y.

AU - Haba, J.

AU - Hemmi, Y.

AU - Higuchi, M.

AU - Hinode, F.

AU - Hirose, T.

AU - Homma, Y.

AU - Hoshi, Y.

AU - Ishihara, N.

AU - Kanda, N.

AU - Kanematsu, N.

AU - Kanzaki, J.

AU - Kikuchi, R.

AU - Korhonen, T. T.

AU - Kondo, T.

AU - Koseki, T.

AU - Kurashige, H.

AU - MacNaughton, J.

AU - Matsui, T.

AU - Minami, M.

AU - Miyake, K.

AU - Mori, S.

AU - Nagashima, Y.

AU - Nakamura, T.

AU - Nakano, I.

AU - Narita, Y.

AU - Odaka, S.

AU - Ogawa, K.

AU - Ohama, T.

AU - Ohsugi, T.

AU - Okamoto, A.

AU - Ono, A.

AU - Oyama, T.

AU - Sakamoto, H.

AU - Sakuda, Makoto

AU - Sasao, Noboru

AU - Sato, M.

AU - Shibuya, H.

AU - Shioden, M.

AU - Shirai, J.

AU - Sugimoto, S.

AU - Sumiyoshi, T.

AU - Suzuki, A.

AU - Takada, Y.

AU - Takaki, H.

AU - Takasaki, F.

AU - Taketani, A.

AU - Takita, M.

AU - Tamura, N.

AU - Terunuma, N.

AU - Tobimatsu, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Unno, Y.

AU - Watanabe, T.

AU - Watase, Y.

AU - Yabuki, F.

AU - Yamada, Y.

AU - Yonezawa, Y.

AU - Yoshida, H.

PY - 1992/4/2

Y1 - 1992/4/2

N2 - We have measured the forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation at TRISTAN. It was made possible by detecting prompt leptons from b-quarks. The obtained asymmetry is A= -0.55±0.15±0.08. If corrected for B-meson mixing effects with the assumptions given in the text, the asymmetry becomes A=f-0.78±0.21±0.11, which is consistent with the prediction of the standard model, namely the assignment of the b-quark to the isospin doublet of the third quark generation.

AB - We have measured the forward-backward charge asymmetry in the process of b-quark production in e+e- annihilation at TRISTAN. It was made possible by detecting prompt leptons from b-quarks. The obtained asymmetry is A= -0.55±0.15±0.08. If corrected for B-meson mixing effects with the assumptions given in the text, the asymmetry becomes A=f-0.78±0.21±0.11, which is consistent with the prediction of the standard model, namely the assignment of the b-quark to the isospin doublet of the third quark generation.

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U2 - 10.1016/0370-2693(92)90592-R

DO - 10.1016/0370-2693(92)90592-R

M3 - Article

AN - SCOPUS:1542574087

VL - 278

SP - 499

EP - 505

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

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