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Measurement of gamma gamma* -> pi(0) transition form factor at Belle
- Authors
- Uehara, S.; Watanabe, Y.; Nakazawa, H.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I. -S.; Cho, K.; Choi, Y.; Dalseno, J.; Dolezal, Z.; Drasal, Z.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Feindt, M.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hyun, H. J.; Iijima, T.; 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, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Ko, B. R.; Koblitz, S.; Kodys, P.; Korpar, S.; Kouzes, R. T.; Krizan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lee, S-H.; Li, J.; Li, Y.; Libby, J.; Lim, C. -L.; Liu, C.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, H. K.; Park, K. S.; Pedlar, T. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Prothmann, K.; Roehrken, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Sanuki, T.; Sato, Y.; Savinov, V.; Schneider, O.; Schwanda, C.; Seidl, R.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y. -S.; Sokolov, A.; Solovieva, E.; Staric, M.; Sumiyoshi, T.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Unno, Y.; Uno, S.; Usov, Y.; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wang, C. H.; Wang, P.; Watanabe, M.; Williams, K. M.; Won, E.; Yamashita, Y.; Yuan, C. Z.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
- Issue Date
- 9-11월-2012
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.86, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 86
- Number
- 9
- ISSN
- 1550-7998
- Abstract
- We report a measurement of the process gamma gamma* -> pi(0) with a 759 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The pion transition form factor, F(Q(2)), is measured for the kinematical region 4 GeV2 <= Q(2) <= 40 GeV2, where -Q(2) is the invariant-mass squared of a virtual photon. The measured values of Q(2)vertical bar F(Q(2))vertical bar agree well with the previous measurements below Q(2) similar or equal to 9 GeV2 but do not exhibit the rapid growth in the higher Q(2) region seen in another recent measurement, which exceeds the asymptotic QCD expectation by as much as 50%.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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