Measurement of the differential cross sections of e+e-→γγ and e+e-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production

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

doi:10.1007/BF01674449

Measurement of the differential cross sections of e⁺e^-→γγ and e⁺e^-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production

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

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23 Citations (Scopus)

Abstract

Differential cross sections for e⁺e^-→γγ have been measured at center-of-mass energies of 55, 56, 56.5 and 57 GeV. The results are in good agreement with those predicted by QED. Possible deviations from QED are studied in terms of contact interactions, and the limits on compositeness scales are obtained. Using events with a gramma pair in the final state, a search is made for the pair production of unstable photons, {Mathematical expression}. No candidate events were found and a new limit on the photino mass is obtained.

Original language	English
Pages (from-to)	175-191
Number of pages	17
Journal	Zeitschrift für Physik C Particles and Fields
Volume	45
Issue number	2
DOIs	https://doi.org/10.1007/BF01674449
Publication status	Published - Jun 1989
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1007/BF01674449

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Abe, K., Amako, K., Arai, Y., Fukawa, M., Fukushima, Y., Ishihara, N., Haidt, D., Kanzaki, J., Kondo, T., Matsui, T., Odaka, S., Ogawa, K., Ohama, T., Sakamoto, H., Shirai, J., Sumiyoshi, T., Takasaki, F., Tsuboyama, T., Uehara, S., ... Yoshida, H. (1989). Measurement of the differential cross sections of e⁺e^-→γγ and e⁺e^-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production. Zeitschrift für Physik C Particles and Fields, 45(2), 175-191. https://doi.org/10.1007/BF01674449

Abe, K, Amako, K, Arai, Y, Fukawa, M, Fukushima, Y, Ishihara, N, Haidt, D, Kanzaki, J, Kondo, T, Matsui, T, Odaka, S, Ogawa, K, Ohama, T, Sakamoto, H, Shirai, J, Sumiyoshi, T, Takasaki, F, Tsuboyama, T, Uehara, S, Unno, Y, Watase, Y, Yamada, Y, Asano, Y, Koseki, T, Mori, S, Sakano, M, Takada, Y, Yonezawa, Y, Chiba, M, Fukui, T, Hirose, T, Narita, Y, Oyama, T, Utsumi, M, Minami, M, Saito, H, Minami, M, Wakai, M, Watanabe, T, Yamagata, T, Chiba, Y, Endo, I, Hayashibara, I, Ohsugi, T, Taketani, A, Tanaka, R, Terunuma, N, Daigo, M, Emura, T, Haba, J, Kamitani, T, Kanematsu, N, Nagashima, Y, Osabe, H, Sakamoto, S, Sugimoto, S, Suzuki, Y, Tsukamoto, A, Yamashita, T, Hemmi, Y, Kikuchi, R, Kurashige, H, Miyake, K, Okamoto, A, Sasao, N, Tamura, N, Higuchi, M, Hoshi, Y, Sato, M, Hojyo, Y, Sakae, H, Homma, Y, Ikegami, Y, Nakano, I, Ono, A, Nakamura, T, Shioden, M, Tobimatsu, K & Yoshida, H 1989, 'Measurement of the differential cross sections of e⁺e^-→γγ and e⁺e^-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production', Zeitschrift für Physik C Particles and Fields, vol. 45, no. 2, pp. 175-191. https://doi.org/10.1007/BF01674449

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title = "Measurement of the differential cross sections of e+e-→γγ and e+e-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production",

abstract = "Differential cross sections for e+e-→γγ have been measured at center-of-mass energies of 55, 56, 56.5 and 57 GeV. The results are in good agreement with those predicted by QED. Possible deviations from QED are studied in terms of contact interactions, and the limits on compositeness scales are obtained. Using events with a gramma pair in the final state, a search is made for the pair production of unstable photons, {Mathematical expression}. No candidate events were found and a new limit on the photino mass is obtained.",

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

year = "1989",

month = jun,

doi = "10.1007/BF01674449",

language = "English",

volume = "45",

pages = "175--191",

journal = "Zeitschrift fur Physik C-Particles and Fields",

issn = "1434-6044",

publisher = "Springer New York",

number = "2",

}

TY - JOUR

T1 - Measurement of the differential cross sections of e+e-→γγ and e+e-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production

AU - Abe, K.

AU - Amako, K.

AU - Arai, Y.

AU - Fukawa, M.

AU - Fukushima, Y.

AU - Ishihara, N.

AU - Haidt, D.

AU - Kanzaki, J.

AU - Kondo, T.

AU - Matsui, T.

AU - Odaka, S.

AU - Ogawa, K.

AU - Ohama, T.

AU - Sakamoto, H.

AU - Shirai, J.

AU - Sumiyoshi, T.

AU - Takasaki, F.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Unno, Y.

AU - Watase, Y.

AU - Yamada, Y.

AU - Asano, Y.

AU - Koseki, T.

AU - Mori, S.

AU - Sakano, M.

AU - Takada, Y.

AU - Yonezawa, Y.

AU - Chiba, M.

AU - Fukui, T.

AU - Hirose, T.

AU - Narita, Y.

AU - Oyama, T.

AU - Utsumi, M.

AU - Minami, M.

AU - Saito, H.

AU - Minami, M.

AU - Wakai, M.

AU - Watanabe, T.

AU - Yamagata, T.

AU - Chiba, Y.

AU - Endo, I.

AU - Hayashibara, I.

AU - Ohsugi, T.

AU - Taketani, A.

AU - Tanaka, R.

AU - Terunuma, N.

AU - Daigo, M.

AU - Emura, T.

AU - Haba, J.

AU - Kamitani, T.

AU - Kanematsu, N.

AU - Nagashima, Y.

AU - Osabe, H.

AU - Sakamoto, S.

AU - Sugimoto, S.

AU - Suzuki, Y.

AU - Tsukamoto, A.

AU - Yamashita, T.

AU - Hemmi, Y.

AU - Kikuchi, R.

AU - Kurashige, H.

AU - Miyake, K.

AU - Okamoto, A.

AU - Sasao, N.

AU - Tamura, N.

AU - Higuchi, M.

AU - Hoshi, Y.

AU - Sato, M.

AU - Hojyo, Y.

AU - Sakae, H.

AU - Homma, Y.

AU - Ikegami, Y.

AU - Nakano, I.

AU - Ono, A.

AU - Nakamura, T.

AU - Shioden, M.

AU - Tobimatsu, K.

AU - Yoshida, H.

PY - 1989/6

Y1 - 1989/6

N2 - Differential cross sections for e+e-→γγ have been measured at center-of-mass energies of 55, 56, 56.5 and 57 GeV. The results are in good agreement with those predicted by QED. Possible deviations from QED are studied in terms of contact interactions, and the limits on compositeness scales are obtained. Using events with a gramma pair in the final state, a search is made for the pair production of unstable photons, {Mathematical expression}. No candidate events were found and a new limit on the photino mass is obtained.

AB - Differential cross sections for e+e-→γγ have been measured at center-of-mass energies of 55, 56, 56.5 and 57 GeV. The results are in good agreement with those predicted by QED. Possible deviations from QED are studied in terms of contact interactions, and the limits on compositeness scales are obtained. Using events with a gramma pair in the final state, a search is made for the pair production of unstable photons, {Mathematical expression}. No candidate events were found and a new limit on the photino mass is obtained.

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UR - http://www.scopus.com/inward/citedby.url?scp=0043172696&partnerID=8YFLogxK

U2 - 10.1007/BF01674449

DO - 10.1007/BF01674449

M3 - Article

AN - SCOPUS:0043172696

VL - 45

SP - 175

EP - 191

JO - Zeitschrift fur Physik C-Particles and Fields

JF - Zeitschrift fur Physik C-Particles and Fields

SN - 1434-6044

IS - 2

ER -

Measurement of the differential cross sections of e⁺e^-→γγ and e⁺e^-→γγγ at {Mathematical expression} and 57 GeV and search for unstable photino pair production

Abstract

ASJC Scopus subject areas

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