Measurement of K+K- production in two-photon collisions in the resonant-mass region

Abe, K. ; Abe, K. ; Abe, T. ; Adachi, I. ; Aihara, H. ; Akatsu, M. ; Asano, Y. ; Aso, T. ; Aulchenko, V. ; Aushev, T. ; Bakich, A.M. ; Bay, A. ; Bedny, I. ; Bizjak, I. ; Bozek, A. ; Bracko, M. ; Chao, Y. ; Cheon, B.G. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Chuvikov, A. ; Dong, L.Y. ; Eidelman, S. ; Eiges, V. ; Fukunaga, C. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Hara, T. ; Hayashii, H. ; Hazumi, M. ; Higuchi, T. ; Hokuue, T. ; Hoshi, Y. ; Hou, W.-S. ; Huang, H.-C. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J.H. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, H.J. ; Kim, J.H. ; Kim, S.K. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kuzmin, A. ; Kwon, Y.-J. ; Lee, S.H. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Lin, S.-W. ; MacNaughton, J. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Mitaroff, W. ; Miyake, H. ; Miyata, H. ; Mori, T. ; Nagamine, T. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S.L. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, H. ; Parslow, N. ; Piilonen, L.E. ; Sagawa, H. ; Saitoh, S. ; Sakai, Y. ; Schneider, O. ; Semenov, S. ; Sevior, M.E. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Singh, J.B. ; Soni, N. ; Stanič, S. ; Staric, M. ; Sugi, A. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S.Y. ; Takasaki, F. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Teramoto, Y. ; Tomura, T. ; Tsuboyama, T. ; Uehara, S. ; Uno, S. ; Varner, G. ; Wang, C.C. ; Wang, C.H. ; Watanabe, Y. ; Yamada, Y. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yanai, H. ; Ying, J. ; Yuan, Y. ; Yusa, Y. ; Zhang, C.C. ; Zhang, Z.P. ; Zhilich, V. ; Žontar, D.

K+K- production in two-photon collisions has been studied using a large data sample of 67 fb-1 accumulated with the Belle detector at the KEKB asymmetric e+e- collider. We have measured the cross section for the process γγ → K +K- for center-of-mass energies between 1.4 and 2.4 GeV, and found three new resonant structures in the energy region between 1.6 and 2. 4 GeV. The angular differential cross sections have also been measured.


Published in:
European Physical Journal C, 32, 3, 323-336
Year:
2004
ISSN:
14346044
Laboratories:




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