Experimental limits on extra-Z bosons from e+e- annihilation data with the VENUS detector at s=50-64 GeV

K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, T. Emura, I. Endo, M. Fukawa, T. Fukui, Y. Fukushima, J. Haba, I. Hayashibara, Y. Hemmi, M. Higuchi, T. Hirose, Y. Hojyo, Y. Homma, Y. HoshiY. Ikegami, N. Ishihara, T. Kamitani, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. Kondo, T. Koseki, K. Kubo, H. Kurashige, 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, H. Osabe, T. Oyama, H. Saito, H. Sakae, H. Sakamoto, S. Sakamoto, M. Sakano, Makoto Sakuda, Noboru Sasao, M. Sato, M. Shioden, J. Shirai, M. Shirakata, F. Suekane, S. Sugimoto, T. Sumiyoshi, A. Suzuki, Y. Suzuki, Y. Takada, F. Takasaki, A. Taketani, M. Takita, N. Tamura, R. Tanaka, N. Terunuma, K. Tobimatsu, T. Tsuboyama, A. Tsukamoto, S. Uehara, Y. Unno, M. Utsumi, M. Wakai, T. Watanabe, Y. Watase, F. Yabuki, Y. Yamada, T. Yamagata, T. Yamashita, Y. Yonezawa, H. Yoshida

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Abstract

We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50<s+e- storage ring. Our data are in good agreement with the standard model prediction ( χ2 NDf= 2.9 31)). We have obtained 90% confidence-level lower limits of 105, 125 and 231 GeV for the masses of ZΨ, Zη and Zχ bosons which are expected from the E6 grand unified theory. We also place a 90% confidence-level lower limit of 426 GeV for the mass of an extra-Z boson whose couplings to quarks and leptons are assumed to be the same as those for the standard Z boson. Our results exceed the previous experimental limits from the pp collider experiments, although there have been some combined analyses reporting the limits better than those obtained in the present analysis.

Original languageEnglish
Pages (from-to)297-305
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume246
Issue number1-2
DOIs
Publication statusPublished - Aug 23 1990
Externally publishedYes

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bosons
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grand unified theory
hadrons
leptons
quarks
predictions
energy

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  • Nuclear and High Energy Physics

Cite this

Experimental limits on extra-Z bosons from e+e- annihilation data with the VENUS detector at s=50-64 GeV. / Abe, K.; Amako, K.; Arai, Y.; Asano, Y.; Chiba, M.; Chiba, Y.; Daigo, M.; Emura, T.; Endo, I.; Fukawa, M.; Fukui, T.; Fukushima, Y.; Haba, J.; Hayashibara, I.; Hemmi, Y.; Higuchi, M.; Hirose, T.; Hojyo, Y.; Homma, Y.; Hoshi, Y.; Ikegami, Y.; Ishihara, N.; Kamitani, T.; Kanematsu, N.; Kanzaki, J.; Kikuchi, R.; Kondo, T.; Koseki, T.; Kubo, K.; Kurashige, H.; 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.; Osabe, H.; Oyama, T.; Saito, H.; Sakae, H.; Sakamoto, H.; Sakamoto, S.; Sakano, M.; Sakuda, Makoto; Sasao, Noboru; Sato, M.; Shioden, M.; Shirai, J.; Shirakata, M.; Suekane, F.; Sugimoto, S.; Sumiyoshi, T.; Suzuki, A.; Suzuki, Y.; Takada, Y.; Takasaki, F.; Taketani, A.; Takita, M.; Tamura, N.; Tanaka, R.; Terunuma, N.; Tobimatsu, K.; Tsuboyama, T.; Tsukamoto, A.; Uehara, S.; Unno, Y.; Utsumi, M.; Wakai, M.; Watanabe, T.; Watase, Y.; Yabuki, F.; Yamada, Y.; Yamagata, T.; Yamashita, T.; Yonezawa, Y.; Yoshida, H.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 246, No. 1-2, 23.08.1990, p. 297-305.

Research output: Contribution to journalArticle

Abe, K, Amako, K, Arai, Y, Asano, Y, Chiba, M, Chiba, Y, Daigo, M, Emura, T, Endo, I, Fukawa, M, Fukui, T, Fukushima, Y, Haba, J, Hayashibara, I, Hemmi, Y, Higuchi, M, Hirose, T, Hojyo, Y, Homma, Y, Hoshi, Y, Ikegami, Y, Ishihara, N, Kamitani, T, Kanematsu, N, Kanzaki, J, Kikuchi, R, Kondo, T, Koseki, T, Kubo, K, Kurashige, H, 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, Osabe, H, Oyama, T, Saito, H, Sakae, H, Sakamoto, H, Sakamoto, S, Sakano, M, Sakuda, M, Sasao, N, Sato, M, Shioden, M, Shirai, J, Shirakata, M, Suekane, F, Sugimoto, S, Sumiyoshi, T, Suzuki, A, Suzuki, Y, Takada, Y, Takasaki, F, Taketani, A, Takita, M, Tamura, N, Tanaka, R, Terunuma, N, Tobimatsu, K, Tsuboyama, T, Tsukamoto, A, Uehara, S, Unno, Y, Utsumi, M, Wakai, M, Watanabe, T, Watase, Y, Yabuki, F, Yamada, Y, Yamagata, T, Yamashita, T, Yonezawa, Y & Yoshida, H 1990, 'Experimental limits on extra-Z bosons from e+e- annihilation data with the VENUS detector at s=50-64 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 246, no. 1-2, pp. 297-305. https://doi.org/10.1016/0370-2693(90)91348-F
Abe, K. ; Amako, K. ; Arai, Y. ; Asano, Y. ; Chiba, M. ; Chiba, Y. ; Daigo, M. ; Emura, T. ; Endo, I. ; Fukawa, M. ; Fukui, T. ; Fukushima, Y. ; Haba, J. ; Hayashibara, I. ; Hemmi, Y. ; Higuchi, M. ; Hirose, T. ; Hojyo, Y. ; Homma, Y. ; Hoshi, Y. ; Ikegami, Y. ; Ishihara, N. ; Kamitani, T. ; Kanematsu, N. ; Kanzaki, J. ; Kikuchi, R. ; Kondo, T. ; Koseki, T. ; Kubo, K. ; Kurashige, H. ; 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. ; Osabe, H. ; Oyama, T. ; Saito, H. ; Sakae, H. ; Sakamoto, H. ; Sakamoto, S. ; Sakano, M. ; Sakuda, Makoto ; Sasao, Noboru ; Sato, M. ; Shioden, M. ; Shirai, J. ; Shirakata, M. ; Suekane, F. ; Sugimoto, S. ; Sumiyoshi, T. ; Suzuki, A. ; Suzuki, Y. ; Takada, Y. ; Takasaki, F. ; Taketani, A. ; Takita, M. ; Tamura, N. ; Tanaka, R. ; Terunuma, N. ; Tobimatsu, K. ; Tsuboyama, T. ; Tsukamoto, A. ; Uehara, S. ; Unno, Y. ; Utsumi, M. ; Wakai, M. ; Watanabe, T. ; Watase, Y. ; Yabuki, F. ; Yamada, Y. ; Yamagata, T. ; Yamashita, T. ; Yonezawa, Y. ; Yoshida, H. / Experimental limits on extra-Z bosons from e+e- annihilation data with the VENUS detector at s=50-64 GeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1990 ; Vol. 246, No. 1-2. pp. 297-305.
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abstract = "We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50- storage ring. Our data are in good agreement with the standard model prediction ( χ2 NDf= 2.9 31)). We have obtained 90{\%} confidence-level lower limits of 105, 125 and 231 GeV for the masses of ZΨ, Zη and Zχ bosons which are expected from the E6 grand unified theory. We also place a 90{\%} confidence-level lower limit of 426 GeV for the mass of an extra-Z boson whose couplings to quarks and leptons are assumed to be the same as those for the standard Z boson. Our results exceed the previous experimental limits from the pp collider experiments, although there have been some combined analyses reporting the limits better than those obtained in the present analysis.",
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T1 - Experimental limits on extra-Z bosons from e+e- annihilation data with the VENUS detector at s=50-64 GeV

AU - Abe, K.

AU - Amako, K.

AU - Arai, Y.

AU - Asano, Y.

AU - Chiba, M.

AU - Chiba, Y.

AU - Daigo, M.

AU - Emura, T.

AU - Endo, I.

AU - Fukawa, M.

AU - Fukui, T.

AU - Fukushima, Y.

AU - Haba, J.

AU - Hayashibara, I.

AU - Hemmi, Y.

AU - Higuchi, M.

AU - Hirose, T.

AU - Hojyo, Y.

AU - Homma, Y.

AU - Hoshi, Y.

AU - Ikegami, Y.

AU - Ishihara, N.

AU - Kamitani, T.

AU - Kanematsu, N.

AU - Kanzaki, J.

AU - Kikuchi, R.

AU - Kondo, T.

AU - Koseki, T.

AU - Kubo, K.

AU - Kurashige, H.

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 - Osabe, H.

AU - Oyama, T.

AU - Saito, H.

AU - Sakae, H.

AU - Sakamoto, H.

AU - Sakamoto, S.

AU - Sakano, M.

AU - Sakuda, Makoto

AU - Sasao, Noboru

AU - Sato, M.

AU - Shioden, M.

AU - Shirai, J.

AU - Shirakata, M.

AU - Suekane, F.

AU - Sugimoto, S.

AU - Sumiyoshi, T.

AU - Suzuki, A.

AU - Suzuki, Y.

AU - Takada, Y.

AU - Takasaki, F.

AU - Taketani, A.

AU - Takita, M.

AU - Tamura, N.

AU - Tanaka, R.

AU - Terunuma, N.

AU - Tobimatsu, K.

AU - Tsuboyama, T.

AU - Tsukamoto, A.

AU - Uehara, S.

AU - Unno, Y.

AU - Utsumi, M.

AU - Wakai, M.

AU - Watanabe, T.

AU - Watase, Y.

AU - Yabuki, F.

AU - Yamada, Y.

AU - Yamagata, T.

AU - Yamashita, T.

AU - Yonezawa, Y.

AU - Yoshida, H.

PY - 1990/8/23

Y1 - 1990/8/23

N2 - We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50- storage ring. Our data are in good agreement with the standard model prediction ( χ2 NDf= 2.9 31)). We have obtained 90% confidence-level lower limits of 105, 125 and 231 GeV for the masses of ZΨ, Zη and Zχ bosons which are expected from the E6 grand unified theory. We also place a 90% confidence-level lower limit of 426 GeV for the mass of an extra-Z boson whose couplings to quarks and leptons are assumed to be the same as those for the standard Z boson. Our results exceed the previous experimental limits from the pp collider experiments, although there have been some combined analyses reporting the limits better than those obtained in the present analysis.

AB - We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50- storage ring. Our data are in good agreement with the standard model prediction ( χ2 NDf= 2.9 31)). We have obtained 90% confidence-level lower limits of 105, 125 and 231 GeV for the masses of ZΨ, Zη and Zχ bosons which are expected from the E6 grand unified theory. We also place a 90% confidence-level lower limit of 426 GeV for the mass of an extra-Z boson whose couplings to quarks and leptons are assumed to be the same as those for the standard Z boson. Our results exceed the previous experimental limits from the pp collider experiments, although there have been some combined analyses reporting the limits better than those obtained in the present analysis.

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