Search for χc2 production in two-photon processes

S. Uehara; K. Abe; K. Amako; Y. Arai; Y. Asano; M. Chiba; Y. Chiba; M. Daigo; M. Fukuwa; T. Fukui; Y. Fukushima; J. Haba; Y. Hemmi; M. Higuchi; F. Hinode; T. Hirose; Y. Hojyo; Y. Homma; Y. Hoshi; N. Ishihara; T. Kamitani; N. Kanematsu; N. Kanda; J. Kanzaki; R. Kikuchi; T. Kondo; T. T. Korhonen; T. Koseki; 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; T. Oyama; H. Sakamoto; Makoto Sakuda; N. Sasao; M. Sato; H. Shibuya; M. Shioden; J. Shirai; M. Shirakata; S. Sugimoto; T. Sumiyoshi; A. Suzuki; Y. Takada; H. Takaki; F. Takasaki; A. Taketani; M. Takita; N. Tamura; N. Terunuma; K. Tobimatsu; T. Tsuboyama; Y. Unno; M. Utsumi; T. Watanabe; Y. Watase; F. Yabuki; Y. Yamada; Y. Yonezawa; H. Yoshida

doi:10.1016/0370-2693(91)90766-J

Search for χ_c2 production in two-photon processes

S. Uehara, K. Abe, K. Amako, Y. Arai, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukuwa, T. Fukui, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, F. Hinode, T. Hirose, Y. Hojyo, Y. Homma, Y. Hoshi, N. IshiharaT. Kamitani, N. Kanematsu, N. Kanda, J. Kanzaki, R. Kikuchi, T. Kondo, T. T. Korhonen, T. Koseki, 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, T. Oyama, H. Sakamoto, Makoto Sakuda, N. Sasao, M. Sato, H. Shibuya, M. Shioden, J. Shirai, M. Shirakata, S. Sugimoto, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, A. Taketani, M. Takita, N. Tamura, N. Terunuma, K. Tobimatsu, T. Tsuboyama, Y. Unno, M. Utsumi, T. Watanabe, Y. Watase, F. Yabuki, Y. Yamada, Y. Yonezawa, H. Yoshida

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Abstract

A search has been made for the production of a charmonium state χ_c2 in two-photon processes. We have used the decay channel χ_c2→γJ/ψ, J/ψ→ℓ⁺ℓ^-. No signal enhancement indicating the production of χ_c2 has been observed in the invariant mass distributions of the final state particles, and an upper limit for the two-photon decay width, Γ_γγ(χ_c2)<4.2 keV at 95% CL, has been obtained.

Original language	English
Pages (from-to)	188-192
Number of pages	5
Journal	Physics Letters B
Volume	266
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(91)90766-J
Publication status	Published - Aug 22 1991
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(91)90766-J

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Uehara, S., Abe, K., Amako, K., Arai, Y., Asano, Y., Chiba, M., Chiba, Y., Daigo, M., Fukuwa, M., Fukui, T., Fukushima, Y., Haba, J., Hemmi, Y., Higuchi, M., Hinode, F., Hirose, T., Hojyo, Y., Homma, Y., Hoshi, Y., ... Yoshida, H. (1991). Search for χ_c2 production in two-photon processes. Physics Letters B, 266(1-2), 188-192. https://doi.org/10.1016/0370-2693(91)90766-J

Uehara, S, Abe, K, Amako, K, Arai, Y, Asano, Y, Chiba, M, Chiba, Y, Daigo, M, Fukuwa, M, Fukui, T, Fukushima, Y, Haba, J, Hemmi, Y, Higuchi, M, Hinode, F, Hirose, T, Hojyo, Y, Homma, Y, Hoshi, Y, Ishihara, N, Kamitani, T, Kanematsu, N, Kanda, N, Kanzaki, J, Kikuchi, R, Kondo, T, Korhonen, TT, Koseki, T, 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, Oyama, T, Sakamoto, H, Sakuda, M, Sasao, N, Sato, M, Shibuya, H, Shioden, M, Shirai, J, Shirakata, M, Sugimoto, S, Sumiyoshi, T, Suzuki, A, Takada, Y, Takaki, H, Takasaki, F, Taketani, A, Takita, M, Tamura, N, Terunuma, N, Tobimatsu, K, Tsuboyama, T, Unno, Y, Utsumi, M, Watanabe, T, Watase, Y, Yabuki, F, Yamada, Y, Yonezawa, Y & Yoshida, H 1991, 'Search for χ_c2 production in two-photon processes', Physics Letters B, vol. 266, no. 1-2, pp. 188-192. https://doi.org/10.1016/0370-2693(91)90766-J

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title = "Search for χc2 production in two-photon processes",

abstract = "A search has been made for the production of a charmonium state χc2 in two-photon processes. We have used the decay channel χc2→γJ/ψ, J/ψ→ℓ+ℓ-. No signal enhancement indicating the production of χc2 has been observed in the invariant mass distributions of the final state particles, and an upper limit for the two-photon decay width, Γγγ(χc2)<4.2 keV at 95% CL, has been obtained.",

author = "S. Uehara and K. Abe and K. Amako and Y. Arai and Y. Asano and M. Chiba and Y. Chiba and M. Daigo and M. Fukuwa and T. Fukui and Y. Fukushima and J. Haba and Y. Hemmi and M. Higuchi and F. Hinode and T. Hirose and Y. Hojyo and Y. Homma and Y. Hoshi and N. Ishihara and T. Kamitani and N. Kanematsu and N. Kanda and J. Kanzaki and R. Kikuchi and T. Kondo and Korhonen, {T. T.} and T. Koseki 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 T. Oyama and H. Sakamoto and Makoto Sakuda and N. Sasao and M. Sato and H. Shibuya and M. Shioden and J. Shirai and M. Shirakata and S. Sugimoto and T. Sumiyoshi and A. Suzuki and Y. Takada and H. Takaki and F. Takasaki and A. Taketani and M. Takita and N. Tamura and N. Terunuma and K. Tobimatsu and T. Tsuboyama and Y. Unno and M. Utsumi and T. Watanabe and Y. Watase and F. Yabuki and Y. Yamada and Y. Yonezawa and H. Yoshida",

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month = aug,

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doi = "10.1016/0370-2693(91)90766-J",

language = "English",

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T1 - Search for χc2 production in two-photon processes

AU - Uehara, S.

AU - Abe, K.

AU - Amako, K.

AU - Arai, Y.

AU - Asano, Y.

AU - Chiba, M.

AU - Chiba, Y.

AU - Daigo, M.

AU - Fukuwa, M.

AU - Fukui, T.

AU - Fukushima, Y.

AU - Haba, J.

AU - Hemmi, Y.

AU - Higuchi, M.

AU - Hinode, F.

AU - Hirose, T.

AU - Hojyo, Y.

AU - Homma, Y.

AU - Hoshi, Y.

AU - Ishihara, N.

AU - Kamitani, T.

AU - Kanematsu, N.

AU - Kanda, N.

AU - Kanzaki, J.

AU - Kikuchi, R.

AU - Kondo, T.

AU - Korhonen, T. T.

AU - Koseki, T.

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 - Oyama, T.

AU - Sakamoto, H.

AU - Sakuda, Makoto

AU - Sasao, N.

AU - Sato, M.

AU - Shibuya, H.

AU - Shioden, M.

AU - Shirai, J.

AU - Shirakata, M.

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 - Unno, Y.

AU - Utsumi, M.

AU - Watanabe, T.

AU - Watase, Y.

AU - Yabuki, F.

AU - Yamada, Y.

AU - Yonezawa, Y.

AU - Yoshida, H.

PY - 1991/8/22

Y1 - 1991/8/22

N2 - A search has been made for the production of a charmonium state χc2 in two-photon processes. We have used the decay channel χc2→γJ/ψ, J/ψ→ℓ+ℓ-. No signal enhancement indicating the production of χc2 has been observed in the invariant mass distributions of the final state particles, and an upper limit for the two-photon decay width, Γγγ(χc2)<4.2 keV at 95% CL, has been obtained.

AB - A search has been made for the production of a charmonium state χc2 in two-photon processes. We have used the decay channel χc2→γJ/ψ, J/ψ→ℓ+ℓ-. No signal enhancement indicating the production of χc2 has been observed in the invariant mass distributions of the final state particles, and an upper limit for the two-photon decay width, Γγγ(χc2)<4.2 keV at 95% CL, has been obtained.

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U2 - 10.1016/0370-2693(91)90766-J

DO - 10.1016/0370-2693(91)90766-J

M3 - Article

AN - SCOPUS:0005824970

SN - 0370-2693

VL - 266

SP - 188

EP - 192

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

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

IS - 1-2

ER -

Search for χ_c2 production in two-photon processes

Abstract

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