Observation of transverse polarization asymmetries of charged pion pairs in e+e- annihilation near sqrt s=10.58 GeV
| Autor: | Vossen, A., Seidl, R., Adachi, I., Aihara, H., Aushev, T., Balagura, V., Bartel, W., Bischofberger, M., Bondar, A., Bračko, M., Browder, T. E., Chang, M. -C., Chen, A., Chen, P., Cheon, B. G., Cho, K., Choi, Y., Eidelman, S., Feindt, M., Gaur, V., Gabyshev, N., Garmash, A., Golob, B., Grosse-Perdekamp, M., Haba, J., Hayasaka, K., Horii, Y., Hoshi, Y., Hou, W. -S., Hyun, H. J., Inami, K., Ishikawa, A., Iwabuchi, M., Iwasaki, Y., Iwashita, T., Joshi, N. J., Kichimi, H., Kim, H. O., Kim, M. J., Ko, B. R., Kumita, T, Lange, J. S., Lee, M. J., Lee, S. -H., Leitgab, M., Li, Y., Liu, C., Liventsev, D., Louvot, R., McOnie, S., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Nakano, E., Nishida, S., Nitoh, O., Ogawa, A., Ohshima, T., Okuno, S., Pakhlova, G., Park, H., Park, H. K., Petrič, M., Piilonen, L. E., Ryu, S., Sahoo, H., Sakai, Y., Schneider, O., Schwanda, C., Seon, O., Shapkin, M., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Smerkol, P., Sohn, Y. -S., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Wang, C. H., Wang, M. -Z., Wang, P, Watanabe, Y., Won, E., Yabsley, B. D., Yamashita, Y., Zhilich, V., Zhou, P., Zhulanov, V. |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Phys.Rev.Lett.107:072004,2011 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.107.072004 |
| Popis: | The interference fragmentation function translates the fragmentation of a quark with a transverse projection of the spin into an azimuthal asymmetry of two final-state hadrons. In e+e- annihilation the product of two interference fragmentation functions is measured. We report nonzero asymmetries for pairs of charge-ordered pi+pi- pairs, which indicate a significant interference fragmentation function in this channel. The results are obtained from a 672 fb-1 data sample that contains 711 \times 106 pi+pi- pairs and was collected at and near the ?(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. Comment: 19 pages, 5 figures (including publication's supplement file), Submitted to Physical Review Letters |
| Databáze: | arXiv |
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