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. Hoshi; Y. 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; M. Sakuda; N. 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

doi:10.1016/0370-2693(90)91348-F

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, M. Sakuda, N. 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<64 GeV using the VENUS detector at the TRISTAN e⁺e^- storage ring. Our data are in good agreement with the standard model prediction ( χ² N_Df= 2.9 31)). We have obtained 90% confidence-level lower limits of 105, 125 and 231 GeV for the masses of Z_Ψ, Z_η and Z_χ 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 language	English (US)
Pages (from-to)	297-305
Number of pages	9
Journal	Physics Letters B
Volume	246
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(90)91348-F
State	Published - Aug 23 1990
Externally published	Yes

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Nuclear and High Energy Physics

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10.1016/0370-2693(90)91348-F

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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., ... 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 B, 246(1-2), 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, 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 B, vol. 246, no. 1-2, pp. 297-305. https://doi.org/10.1016/0370-2693(90)91348-F

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

abstract = "We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50< s<64 GeV using the VENUS detector at the TRISTAN e+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.",

author = "K. Abe and K. Amako and Y. Arai and Y. Asano and M. Chiba and Y. Chiba and M. Daigo and T. Emura and I. Endo and M. Fukawa and T. Fukui and Y. Fukushima and J. Haba and I. Hayashibara and Y. Hemmi and M. Higuchi and T. Hirose and Y. Hojyo and Y. Homma and Y. Hoshi and Y. Ikegami and N. Ishihara and T. Kamitani and N. Kanematsu and J. Kanzaki and R. Kikuchi and T. Kondo and T. Koseki and K. Kubo and H. Kurashige and T. Matsui and M. Minami and K. Miyake and S. Mori and Y. Nagashima and T. Nakamura and I. Nakano and Y. Narita and S. Odaka and K. Ogawa and T. Ohama and T. Ohsugi and A. Okamoto and A. Ono and H. Osabe and T. Oyama and H. Saito and H. Sakae and H. Sakamoto and S. Sakamoto and M. Sakano and M. Sakuda and N. Sasao and M. Sato and M. Shioden and J. Shirai and M. Shirakata and F. Suekane and S. Sugimoto and T. Sumiyoshi and A. Suzuki and Y. Suzuki and Y. Takada and F. Takasaki and A. Taketani and M. Takita and N. Tamura and R. Tanaka and N. Terunuma and K. Tobimatsu and T. Tsuboyama and A. Tsukamoto and S. Uehara and Y. Unno and M. Utsumi and M. Wakai and T. Watanabe and Y. Watase and F. Yabuki and Y. Yamada and T. Yamagata and T. Yamashita and Y. Yonezawa and H. Yoshida",

year = "1990",

month = aug,

day = "23",

doi = "10.1016/0370-2693(90)91348-F",

language = "English (US)",

volume = "246",

pages = "297--305",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

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, M.

AU - Sasao, N.

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< s<64 GeV using the VENUS detector at the TRISTAN e+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.

AB - We have tested extra Z models in the reactions e+e-→μ+μ-, τ+τ- and hadrons in the energy range 50< s<64 GeV using the VENUS detector at the TRISTAN e+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.

UR - http://www.scopus.com/inward/record.url?scp=0347096480&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0347096480&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(90)91348-F

DO - 10.1016/0370-2693(90)91348-F

M3 - Article

AN - SCOPUS:0347096480

SN - 0370-2693

VL - 246

SP - 297

EP - 305

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

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

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