Observation of new resonant structures in γγ→ω, , and ωω

Z. Q. Liu, C. P. Shen, C. Z. Yuan, T. Iijima, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, K. Belous, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. ChangA. Chen, P. Chen, B. G. Cheon, R. Chistov, I. S. Cho, K. Cho, S. K. Choi, Y. Choi, J. Dalseno, Z. Doleal, Z. Drásal, S. Eidelman, D. Epifanov, J. E. Fast, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, J. Haba, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, B. R. Ko, S. Koblitz, P. Kodý, S. Korpar, P. Krian, P. Krokovny, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, S. H. Lee, J. Li, X. R. Li, Y. Li, J. Libby, C. Liu, D. Liventsev, R. Louvot, D. Matvienko, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, R. Mussa, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, C. Ng, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, C. W. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, S. Ryu, H. Sahoo, K. Sakai, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, G. Tatishvili, Y. Teramoto, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, A. Vinokurova, V. Vorobyev, C. H. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, Y. Yamashita, Y. Yusa, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The processes γγ→ω, , and ωω are measured using an 870fb -1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e - collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η c, χ c0, and χ c2 two-photon decay widths and branching fractions to ω, , and ωω.

Original languageEnglish
Article number232001
JournalPhysical Review Letters
Volume108
Issue number23
DOIs
Publication statusPublished - 2012 Jun 8

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thresholds
vector mesons
parity
detectors
cross sections
photons
decay
products
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Liu, Z. Q., Shen, C. P., Yuan, C. Z., Iijima, T., Adachi, I., Aihara, H., ... Zhulanov, V. (2012). Observation of new resonant structures in γγ→ω, , and ωω. Physical Review Letters, 108(23), [232001]. https://doi.org/10.1103/PhysRevLett.108.232001
Liu, Z. Q. ; Shen, C. P. ; Yuan, C. Z. ; Iijima, T. ; Adachi, I. ; Aihara, H. ; Asner, D. M. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Belous, K. ; Bhardwaj, V. ; Bhuyan, B. ; Bischofberger, M. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, M. C. ; Chang, P. ; Chen, A. ; Chen, P. ; Cheon, B. G. ; Chistov, R. ; Cho, I. S. ; Cho, K. ; Choi, S. K. ; Choi, Y. ; Dalseno, J. ; Doleal, Z. ; Drásal, Z. ; Eidelman, S. ; Epifanov, D. ; Fast, J. E. ; Gaur, V. ; Gabyshev, N. ; Garmash, A. ; Goh, Y. M. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Horii, Y. ; Hoshi, Y. ; Hou, W. S. ; Hsiung, Y. B. ; Hyun, H. J. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwabuchi, M. ; Iwasaki, Y. ; Iwashita, T. ; Julius, T. ; Kang, J. H. ; Kawasaki, T. ; Kiesling, C. ; Kim, H. J. ; Kim, H. O. ; Kim, J. B. ; Kim, K. T. ; Kim, M. J. ; Kim, Y. J. ; Ko, B. R. ; Koblitz, S. ; Kodý, P. ; Korpar, S. ; Krian, P. ; Krokovny, P. ; Kumita, T. ; Kuzmin, A. ; Kwon, Y. J. ; Lange, J. S. ; Lee, S. H. ; Li, J. ; Li, X. R. ; Li, Y. ; Libby, J. ; Liu, C. ; Liventsev, D. ; Louvot, R. ; Matvienko, D. ; McOnie, S. ; Miyabayashi, K. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Mohanty, G. B. ; Moll, A. ; Mori, T. ; Muramatsu, N. ; Mussa, R. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Ng, C. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Onuki, Y. ; Pakhlov, P. ; Pakhlova, G. ; Park, C. W. ; Park, H. K. ; Pedlar, T. K. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Ritter, M. ; Röhrken, M. ; Ryu, S. ; Sahoo, H. ; Sakai, K. ; Sakai, Y. ; Sanuki, T. ; Sato, Y. ; Schneider, O. ; Schwanda, C. ; Seidl, R. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shebalin, V. ; Shibata, T. A. ; Shiu, J. G. ; Shwartz, B. ; Sibidanov, A. ; Simon, F. ; Smerkol, P. ; Sohn, Y. S. ; Sokolov, A. ; Solovieva, E. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tatishvili, G. ; Teramoto, Y. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Varner, G. ; Vinokurova, A. ; Vorobyev, V. ; Wang, C. H. ; Wang, P. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Williams, K. M. ; Won, E. ; Yamashita, Y. ; Yusa, Y. ; Zhang, C. C. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. / Observation of new resonant structures in γγ→ω, , and ωω. In: Physical Review Letters. 2012 ; Vol. 108, No. 23.
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title = "Observation of new resonant structures in γγ→ω, , and ωω",
abstract = "The processes γγ→ω, , and ωω are measured using an 870fb -1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e - collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η c, χ c0, and χ c2 two-photon decay widths and branching fractions to ω, , and ωω.",
author = "Liu, {Z. Q.} and Shen, {C. P.} and Yuan, {C. Z.} and T. Iijima and I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and Bakich, {A. M.} and K. Belous and V. Bhardwaj and B. Bhuyan and M. Bischofberger and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and Chang, {M. C.} and P. Chang and A. Chen and P. Chen and Cheon, {B. G.} and R. Chistov and Cho, {I. S.} and K. Cho and Choi, {S. K.} and Y. Choi and J. Dalseno and Z. Doleal and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and Fast, {J. E.} and V. Gaur and N. Gabyshev and A. Garmash and Goh, {Y. M.} and J. Haba and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and Kang, {J. H.} and T. Kawasaki and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. B.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {Y. J.} and Ko, {B. R.} and S. Koblitz and P. Kod{\'y} and S. Korpar and P. Krian and P. Krokovny and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {S. H.} and J. Li and Li, {X. R.} and Y. Li and J. Libby and C. Liu and D. Liventsev and R. Louvot and D. Matvienko and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and Mohanty, {G. B.} and A. Moll and T. Mori and N. Muramatsu and R. Mussa and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and C. Ng and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and Y. Onuki and P. Pakhlov and G. Pakhlova and Park, {C. W.} and Park, {H. K.} and Pedlar, {T. K.} and R. Pestotnik and M. Petrič and Piilonen, {L. E.} and M. Ritter and M. R{\"o}hrken and S. Ryu and H. Sahoo and K. Sakai and Y. Sakai and T. Sanuki and Y. Sato and O. Schneider and C. Schwanda and R. Seidl and K. Senyo and Sevior, {M. E.} and M. Shapkin and V. Shebalin and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and T. Sumiyoshi and G. Tatishvili and Y. Teramoto and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and G. Varner and A. Vinokurova and V. Vorobyev and Wang, {C. H.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and Williams, {K. M.} and E. Won and Y. Yamashita and Y. Yusa and Zhang, {C. C.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov",
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Liu, ZQ, Shen, CP, Yuan, CZ, Iijima, T, Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Bakich, AM, Belous, K, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chen, A, Chen, P, Cheon, BG, Chistov, R, Cho, IS, Cho, K, Choi, SK, Choi, Y, Dalseno, J, Doleal, Z, Drásal, Z, Eidelman, S, Epifanov, D, Fast, JE, Gaur, V, Gabyshev, N, Garmash, A, Goh, YM, Haba, J, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Julius, T, Kang, JH, Kawasaki, T, Kiesling, C, Kim, HJ, Kim, HO, Kim, JB, Kim, KT, Kim, MJ, Kim, YJ, Ko, BR, Koblitz, S, Kodý, P, Korpar, S, Krian, P, Krokovny, P, Kumita, T, Kuzmin, A, Kwon, YJ, Lange, JS, Lee, SH, Li, J, Li, XR, Li, Y, Libby, J, Liu, C, Liventsev, D, Louvot, R, Matvienko, D, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, Moll, A, Mori, T, Muramatsu, N, Mussa, R, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Ng, C, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, CW, Park, HK, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Ryu, S, Sahoo, H, Sakai, K, Sakai, Y, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Seidl, R, Senyo, K, Sevior, ME, Shapkin, M, Shebalin, V, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumiyoshi, T, Tatishvili, G, Teramoto, Y, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Varner, G, Vinokurova, A, Vorobyev, V, Wang, CH, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yamashita, Y, Yusa, Y, Zhang, CC, Zhang, ZP, Zhilich, V & Zhulanov, V 2012, 'Observation of new resonant structures in γγ→ω, , and ωω', Physical Review Letters, vol. 108, no. 23, 232001. https://doi.org/10.1103/PhysRevLett.108.232001

Observation of new resonant structures in γγ→ω, , and ωω. / Liu, Z. Q.; Shen, C. P.; Yuan, C. Z.; Iijima, T.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chang, P.; Chen, A.; Chen, P.; Cheon, B. G.; Chistov, R.; Cho, I. S.; Cho, K.; Choi, S. K.; Choi, Y.; Dalseno, J.; Doleal, Z.; Drásal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y. M.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Ko, B. R.; Koblitz, S.; Kodý, P.; Korpar, S.; Krian, P.; Krokovny, P.; Kumita, T.; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Lee, S. H.; Li, J.; Li, X. R.; Li, Y.; Libby, J.; Liu, C.; Liventsev, D.; Louvot, R.; Matvienko, D.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Mussa, R.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Ng, C.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Seidl, R.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wang, C. H.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamashita, Y.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.

In: Physical Review Letters, Vol. 108, No. 23, 232001, 08.06.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observation of new resonant structures in γγ→ω, , and ωω

AU - Liu, Z. Q.

AU - Shen, C. P.

AU - Yuan, C. Z.

AU - Iijima, T.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Doleal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goh, Y. M.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Ko, B. R.

AU - Koblitz, S.

AU - Kodý, P.

AU - Korpar, S.

AU - Krian, P.

AU - Krokovny, P.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Li, X. R.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matvienko, D.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mori, T.

AU - Muramatsu, N.

AU - Mussa, R.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Ng, C.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, K.

AU - Sakai, Y.

AU - Sanuki, T.

AU - Sato, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Seidl, R.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wang, C. H.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yamashita, Y.

AU - Yusa, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2012/6/8

Y1 - 2012/6/8

N2 - The processes γγ→ω, , and ωω are measured using an 870fb -1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e - collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η c, χ c0, and χ c2 two-photon decay widths and branching fractions to ω, , and ωω.

AB - The processes γγ→ω, , and ωω are measured using an 870fb -1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e - collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η c, χ c0, and χ c2 two-photon decay widths and branching fractions to ω, , and ωω.

UR - http://www.scopus.com/inward/record.url?scp=84862202007&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862202007&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.108.232001

DO - 10.1103/PhysRevLett.108.232001

M3 - Article

AN - SCOPUS:84862202007

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 232001

ER -

Liu ZQ, Shen CP, Yuan CZ, Iijima T, Adachi I, Aihara H et al. Observation of new resonant structures in γγ→ω, , and ωω. Physical Review Letters. 2012 Jun 8;108(23). 232001. https://doi.org/10.1103/PhysRevLett.108.232001