Measurement of Χc2 production in two-photon collisions

K. Abe, K. Abe, R. Abe, T. Abe, I. Adachi, B. S. Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banas, A. Bay, P. K. Behera, A. Bondar, A. Bozek, M. Bračko & 170 others J. Brodzicka, B. C K Casey, P. Chang, Y. Chao, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, R. Guo, F. Handa, T. Hara, Y. Harada, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Hojo, T. Hokuue, Y. Hoshi, K. Hoshina, S. R. Hou, W. S. Hou, H. C. Huang, T. Igaki, Y. Igarashi, K. Inami, A. Ishikawa, R. Itoh, M. Iwamoto, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. Kaneko, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. Kim, H. J. Kim, H. O. Kim, H. Kim, S. K. Kim, T. H. Kim, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y. J. Kwon, G. Leder, S. H. Lee, J. Li, D. Liventsev, R. S. Lu, J. MacNaughton, G. Majumder, F. Mandl, S. Matsumoto, T. Matsumoto, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, L. S. Peak, J. P. Perroud, M. Peters, L. E. Piilonen, N. Root, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, S. Stanic, M. Staric, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, S. N. Tovey, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Z. Wang, Y. Watanabe, Eunil Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, Y. Yuan, Y. Yusa, J. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The production of the Χc2 charmonium state in two-photon collisions has been measured with the Belle detector at the KEKB e+e- collider. A clear signal for Χc2 → γ J / ψ, J / ψ → ℓ+- is observed in a 32.6 fb-1 data sample accumulated at center-of-mass energies near 10.6 GeV, and the product of its two-photon decay width and branching fraction is determined to be Λγγ (Xc2)Β(Xc2 → γ J / ψ)Β(J / ψ → ℓ+-) = 13.5 ±(stat.) ± 1.1(syst.) eV.

Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume540
Issue number1-2
DOIs
Publication statusPublished - 2002 Jul 25

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collisions
photons
center of mass
detectors
decay
products
energy

Keywords

  • Χ
  • Charmonium
  • Partial decay width
  • Two-photon collisions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Measurement of Χc2 production in two-photon collisions. / Abe, K.; Abe, K.; Abe, R.; Abe, T.; Adachi, I.; Ahn, B. S.; Aihara, H.; Akatsu, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Ban, Y.; Banas, E.; Bay, A.; Behera, P. K.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Casey, B. C K; Chang, P.; Chao, Y.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Danilov, M.; Dong, L. Y.; Drutskoy, A.; Eidelman, S.; Eiges, V.; Enari, Y.; Fukunaga, C.; Gabyshev, N.; Garmash, A.; Gershon, T.; Guo, R.; Handa, F.; Hara, T.; Harada, Y.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Hojo, T.; Hokuue, T.; Hoshi, Y.; Hoshina, K.; Hou, S. R.; Hou, W. S.; Huang, H. C.; Igaki, T.; Igarashi, Y.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwamoto, M.; Iwasaki, H.; Iwasaki, Y.; Jang, H. K.; Kaneko, J.; Kang, J. H.; Kang, J. S.; Kapusta, P.; Kataoka, S. U.; Katayama, N.; Kawai, H.; Kawakami, Y.; Kawamura, N.; Kawasaki, T.; Kichimi, H.; Kim, D. W.; Kim, H.; Kim, H. J.; Kim, H. O.; Kim, H.; Kim, S. K.; Kim, T. H.; Krokovny, P.; Kulasiri, R.; Kumar, S.; Kuzmin, A.; Kwon, Y. J.; Leder, G.; Lee, S. H.; Li, J.; Liventsev, D.; Lu, R. S.; MacNaughton, J.; Majumder, G.; Mandl, F.; Matsumoto, S.; Matsumoto, T.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Moloney, G. R.; Mori, T.; Nagamine, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nam, J. W.; Natkaniec, Z.; Neichi, K.; Nishida, S.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ogawa, S.; Ohno, F.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Palka, H.; Park, C. W.; Park, H.; Park, K. S.; Peak, L. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Root, N.; Rybicki, K.; Sagawa, H.; Saitoh, S.; Sakai, Y.; Satapathy, M.; Schneider, O.; Schrenk, S.; Schwanda, C.; Semenov, S.; Senyo, K.; Seuster, R.; Sevior, M. E.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Singh, J. B.; Stanic, S.; Staric, M.; Sugiyama, A.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Swain, S. K.; Takahashi, T.; Takasaki, F.; Tamai, K.; Tamura, N.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tokuda, S.; Tomura, T.; Tovey, S. N.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Ueno, K.; Uno, S.; Vahsen, S. E.; Varner, G.; Varvell, K. E.; Wang, C. C.; Wang, C. H.; Wang, J. G.; Wang, M. Z.; Watanabe, Y.; Won, Eunil; Yabsley, B. D.; Yamada, Y.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yanai, H.; Yashima, J.; Yuan, Y.; Yusa, Y.; Zhang, J.; Zhang, Z. P.; Zhilich, V.; Žontar, D.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 540, No. 1-2, 25.07.2002, p. 33-42.

Research output: Contribution to journalArticle

Abe, K, Abe, K, Abe, R, Abe, T, Adachi, I, Ahn, BS, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aulchenko, V, Aushev, T, Bakich, AM, Ban, Y, Banas, E, Bay, A, Behera, PK, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Casey, BCK, Chang, P, Chao, Y, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Danilov, M, Dong, LY, Drutskoy, A, Eidelman, S, Eiges, V, Enari, Y, Fukunaga, C, Gabyshev, N, Garmash, A, Gershon, T, Guo, R, Handa, F, Hara, T, Harada, Y, Hayashii, H, Hazumi, M, Heenan, EM, Higuchi, I, Hojo, T, Hokuue, T, Hoshi, Y, Hoshina, K, Hou, SR, Hou, WS, Huang, HC, Igaki, T, Igarashi, Y, Inami, K, Ishikawa, A, Itoh, R, Iwamoto, M, Iwasaki, H, Iwasaki, Y, Jang, HK, Kaneko, J, Kang, JH, Kang, JS, Kapusta, P, Kataoka, SU, Katayama, N, Kawai, H, Kawakami, Y, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, DW, Kim, H, Kim, HJ, Kim, HO, Kim, H, Kim, SK, Kim, TH, Krokovny, P, Kulasiri, R, Kumar, S, Kuzmin, A, Kwon, YJ, Leder, G, Lee, SH, Li, J, Liventsev, D, Lu, RS, MacNaughton, J, Majumder, G, Mandl, F, Matsumoto, S, Matsumoto, T, Miyabayashi, K, Miyake, H, Miyata, H, Moloney, GR, Mori, T, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Nam, JW, Natkaniec, Z, Neichi, K, Nishida, S, Nitoh, O, Noguchi, S, Nozaki, T, Ogawa, S, Ohno, F, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Onuki, Y, Ostrowicz, W, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Park, H, Park, KS, Peak, LS, Perroud, JP, Peters, M, Piilonen, LE, Root, N, Rybicki, K, Sagawa, H, Saitoh, S, Sakai, Y, Satapathy, M, Schneider, O, Schrenk, S, Schwanda, C, Semenov, S, Senyo, K, Seuster, R, Sevior, ME, Shibuya, H, Shwartz, B, Sidorov, V, Singh, JB, Stanic, S, Staric, M, Sugiyama, A, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Swain, SK, Takahashi, T, Takasaki, F, Tamai, K, Tamura, N, Tanaka, M, Taylor, GN, Teramoto, Y, Tokuda, S, Tomura, T, Tovey, SN, Tsuboyama, T, Tsukamoto, T, Uehara, S, Ueno, K, Uno, S, Vahsen, SE, Varner, G, Varvell, KE, Wang, CC, Wang, CH, Wang, JG, Wang, MZ, Watanabe, Y, Won, E, Yabsley, BD, Yamada, Y, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yanai, H, Yashima, J, Yuan, Y, Yusa, Y, Zhang, J, Zhang, ZP, Zhilich, V & Žontar, D 2002, 'Measurement of Χc2 production in two-photon collisions', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 540, no. 1-2, pp. 33-42. https://doi.org/10.1016/S0370-2693(02)02104-4
Abe, K. ; Abe, K. ; Abe, R. ; Abe, T. ; Adachi, I. ; Ahn, B. S. ; Aihara, H. ; Akatsu, M. ; Asano, Y. ; Aso, T. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Ban, Y. ; Banas, E. ; Bay, A. ; Behera, P. K. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Casey, B. C K ; Chang, P. ; Chao, Y. ; Cheon, B. G. ; Chistov, R. ; Choi, S. K. ; Choi, Y. ; Danilov, M. ; Dong, L. Y. ; Drutskoy, A. ; Eidelman, S. ; Eiges, V. ; Enari, Y. ; Fukunaga, C. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Guo, R. ; Handa, F. ; Hara, T. ; Harada, Y. ; Hayashii, H. ; Hazumi, M. ; Heenan, E. M. ; Higuchi, I. ; Hojo, T. ; Hokuue, T. ; Hoshi, Y. ; Hoshina, K. ; Hou, S. R. ; Hou, W. S. ; Huang, H. C. ; Igaki, T. ; Igarashi, Y. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwamoto, M. ; Iwasaki, H. ; Iwasaki, Y. ; Jang, H. K. ; Kaneko, J. ; Kang, J. H. ; Kang, J. S. ; Kapusta, P. ; Kataoka, S. U. ; Katayama, N. ; Kawai, H. ; Kawakami, Y. ; Kawamura, N. ; Kawasaki, T. ; Kichimi, H. ; Kim, D. W. ; Kim, H. ; Kim, H. J. ; Kim, H. O. ; Kim, H. ; Kim, S. K. ; Kim, T. H. ; Krokovny, P. ; Kulasiri, R. ; Kumar, S. ; Kuzmin, A. ; Kwon, Y. J. ; Leder, G. ; Lee, S. H. ; Li, J. ; Liventsev, D. ; Lu, R. S. ; MacNaughton, J. ; Majumder, G. ; Mandl, F. ; Matsumoto, S. ; Matsumoto, T. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Moloney, G. R. ; Mori, T. ; Nagamine, T. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nam, J. W. ; Natkaniec, Z. ; Neichi, K. ; Nishida, S. ; Nitoh, O. ; Noguchi, S. ; Nozaki, T. ; Ogawa, S. ; Ohno, F. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Onuki, Y. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, C. W. ; Park, H. ; Park, K. S. ; Peak, L. S. ; Perroud, J. P. ; Peters, M. ; Piilonen, L. E. ; Root, N. ; Rybicki, K. ; Sagawa, H. ; Saitoh, S. ; Sakai, Y. ; Satapathy, M. ; Schneider, O. ; Schrenk, S. ; Schwanda, C. ; Semenov, S. ; Senyo, K. ; Seuster, R. ; Sevior, M. E. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Singh, J. B. ; Stanic, S. ; Staric, M. ; Sugiyama, A. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S. ; Swain, S. K. ; Takahashi, T. ; Takasaki, F. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tokuda, S. ; Tomura, T. ; Tovey, S. N. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Ueno, K. ; Uno, S. ; Vahsen, S. E. ; Varner, G. ; Varvell, K. E. ; Wang, C. C. ; Wang, C. H. ; Wang, J. G. ; Wang, M. Z. ; Watanabe, Y. ; Won, Eunil ; Yabsley, B. D. ; Yamada, Y. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yanai, H. ; Yashima, J. ; Yuan, Y. ; Yusa, Y. ; Zhang, J. ; Zhang, Z. P. ; Zhilich, V. ; Žontar, D. / Measurement of Χc2 production in two-photon collisions. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2002 ; Vol. 540, No. 1-2. pp. 33-42.
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title = "Measurement of Χc2 production in two-photon collisions",
abstract = "The production of the Χc2 charmonium state in two-photon collisions has been measured with the Belle detector at the KEKB e+e- collider. A clear signal for Χc2 → γ J / ψ, J / ψ → ℓ+ℓ- is observed in a 32.6 fb-1 data sample accumulated at center-of-mass energies near 10.6 GeV, and the product of its two-photon decay width and branching fraction is determined to be Λγγ (Xc2)Β(Xc2 → γ J / ψ)Β(J / ψ → ℓ+ℓ-) = 13.5 ±(stat.) ± 1.1(syst.) eV.",
keywords = "Χ, Charmonium, Partial decay width, Two-photon collisions",
author = "K. Abe and K. Abe and R. Abe and T. Abe and I. Adachi and Ahn, {B. S.} and H. Aihara and M. Akatsu and Y. Asano and T. Aso and V. Aulchenko and T. Aushev and Bakich, {A. M.} and Y. Ban and E. Banas and A. Bay and Behera, {P. K.} and A. Bondar and A. Bozek and M. Bračko and J. Brodzicka and Casey, {B. C K} and P. Chang and Y. Chao and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and M. Danilov and Dong, {L. Y.} and A. Drutskoy and S. Eidelman and V. Eiges and Y. Enari and C. Fukunaga and N. Gabyshev and A. Garmash and T. Gershon and R. Guo and F. Handa and T. Hara and Y. Harada and H. Hayashii and M. Hazumi and Heenan, {E. M.} and I. Higuchi and T. Hojo and T. Hokuue and Y. Hoshi and K. Hoshina and Hou, {S. R.} and Hou, {W. S.} and Huang, {H. C.} and T. Igaki and Y. Igarashi and K. Inami and A. Ishikawa and R. Itoh and M. Iwamoto and H. Iwasaki and Y. Iwasaki and Jang, {H. K.} and J. Kaneko and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and H. Kawai and Y. Kawakami and N. Kawamura and T. Kawasaki and H. Kichimi and Kim, {D. W.} and H. Kim and Kim, {H. J.} and Kim, {H. O.} and H. Kim and Kim, {S. K.} and Kim, {T. H.} and P. Krokovny and R. Kulasiri and S. Kumar and A. Kuzmin and Kwon, {Y. J.} and G. Leder and Lee, {S. H.} and J. Li and D. Liventsev and Lu, {R. S.} and J. MacNaughton and G. Majumder and F. Mandl and S. Matsumoto and T. Matsumoto and K. Miyabayashi and H. Miyake and H. Miyata and Moloney, {G. R.} and T. Mori and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and Nam, {J. W.} and Z. Natkaniec and K. Neichi and S. Nishida and O. Nitoh and S. Noguchi and T. Nozaki and S. Ogawa and F. Ohno and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and Y. Onuki and W. Ostrowicz and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and H. Park and Park, {K. S.} and Peak, {L. S.} and Perroud, {J. P.} and M. Peters and Piilonen, {L. E.} and N. Root and K. Rybicki and H. Sagawa and S. Saitoh and Y. Sakai and M. Satapathy and O. Schneider and S. Schrenk and C. Schwanda and S. Semenov and K. Senyo and R. Seuster and Sevior, {M. E.} and H. Shibuya and B. Shwartz and V. Sidorov and Singh, {J. B.} and S. Stanic and M. Staric and A. Sugiyama and K. Sumisawa and T. Sumiyoshi and S. Suzuki and Swain, {S. K.} and T. Takahashi and F. Takasaki and K. Tamai and N. Tamura and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and S. Tokuda and T. Tomura and Tovey, {S. N.} and T. Tsuboyama and T. Tsukamoto and S. Uehara and K. Ueno and S. Uno and Vahsen, {S. E.} and G. Varner and Varvell, {K. E.} and Wang, {C. C.} and Wang, {C. H.} and Wang, {J. G.} and Wang, {M. Z.} and Y. Watanabe and Eunil Won and Yabsley, {B. D.} and Y. Yamada and A. Yamaguchi and Y. Yamashita and M. Yamauchi and H. Yanai and J. Yashima and Y. Yuan and Y. Yusa and J. Zhang and Zhang, {Z. P.} and V. Zhilich and D. Žontar",
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pages = "33--42",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Measurement of Χc2 production in two-photon collisions

AU - Abe, K.

AU - Abe, K.

AU - Abe, R.

AU - Abe, T.

AU - Adachi, I.

AU - Ahn, B. S.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Banas, E.

AU - Bay, A.

AU - Behera, P. K.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Casey, B. C K

AU - Chang, P.

AU - Chao, Y.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Danilov, M.

AU - Dong, L. Y.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Fukunaga, C.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Guo, R.

AU - Handa, F.

AU - Hara, T.

AU - Harada, Y.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heenan, E. M.

AU - Higuchi, I.

AU - Hojo, T.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hoshina, K.

AU - Hou, S. R.

AU - Hou, W. S.

AU - Huang, H. C.

AU - Igaki, T.

AU - Igarashi, Y.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwamoto, M.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Jang, H. K.

AU - Kaneko, J.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawakami, Y.

AU - Kawamura, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, D. W.

AU - Kim, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, H.

AU - Kim, S. K.

AU - Kim, T. H.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, S.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, S. H.

AU - Li, J.

AU - Liventsev, D.

AU - Lu, R. S.

AU - MacNaughton, J.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, S.

AU - Matsumoto, T.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Moloney, G. R.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nam, J. W.

AU - Natkaniec, Z.

AU - Neichi, K.

AU - Nishida, S.

AU - Nitoh, O.

AU - Noguchi, S.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohno, F.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Park, K. S.

AU - Peak, L. S.

AU - Perroud, J. P.

AU - Peters, M.

AU - Piilonen, L. E.

AU - Root, N.

AU - Rybicki, K.

AU - Sagawa, H.

AU - Saitoh, S.

AU - Sakai, Y.

AU - Satapathy, M.

AU - Schneider, O.

AU - Schrenk, S.

AU - Schwanda, C.

AU - Semenov, S.

AU - Senyo, K.

AU - Seuster, R.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Singh, J. B.

AU - Stanic, S.

AU - Staric, M.

AU - Sugiyama, A.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Swain, S. K.

AU - Takahashi, T.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tamura, N.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tokuda, S.

AU - Tomura, T.

AU - Tovey, S. N.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Ueno, K.

AU - Uno, S.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Varvell, K. E.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, J. G.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamada, Y.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yanai, H.

AU - Yashima, J.

AU - Yuan, Y.

AU - Yusa, Y.

AU - Zhang, J.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Žontar, D.

PY - 2002/7/25

Y1 - 2002/7/25

N2 - The production of the Χc2 charmonium state in two-photon collisions has been measured with the Belle detector at the KEKB e+e- collider. A clear signal for Χc2 → γ J / ψ, J / ψ → ℓ+ℓ- is observed in a 32.6 fb-1 data sample accumulated at center-of-mass energies near 10.6 GeV, and the product of its two-photon decay width and branching fraction is determined to be Λγγ (Xc2)Β(Xc2 → γ J / ψ)Β(J / ψ → ℓ+ℓ-) = 13.5 ±(stat.) ± 1.1(syst.) eV.

AB - The production of the Χc2 charmonium state in two-photon collisions has been measured with the Belle detector at the KEKB e+e- collider. A clear signal for Χc2 → γ J / ψ, J / ψ → ℓ+ℓ- is observed in a 32.6 fb-1 data sample accumulated at center-of-mass energies near 10.6 GeV, and the product of its two-photon decay width and branching fraction is determined to be Λγγ (Xc2)Β(Xc2 → γ J / ψ)Β(J / ψ → ℓ+ℓ-) = 13.5 ±(stat.) ± 1.1(syst.) eV.

KW - Χ

KW - Charmonium

KW - Partial decay width

KW - Two-photon collisions

UR - http://www.scopus.com/inward/record.url?scp=0037173444&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037173444&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(02)02104-4

DO - 10.1016/S0370-2693(02)02104-4

M3 - Article

VL - 540

SP - 33

EP - 42

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

IS - 1-2

ER -