Observation of transverse polarization asymmetries of charged pion pairs in e+e- annihilation near √s = 10.58 GeV.

Journal Article (Journal Article)

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 π(+)π(-) 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 × 10(6) π(+)π(-) pairs and was collected at and near the Υ(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

Full Text

Duke Authors

Cited Authors

  • Vossen, A; Seidl, R; Adachi, I; Aihara, H; Aushev, T; Balagura, V; Bartel, W; Bischofberger, M; Bondar, A; Bračko, M; Browder, TE; Chang, M-C; Chen, A; Chen, P; Cheon, BG; Cho, K; Choi, Y; Eidelman, S; Feindt, M; Gaur, V; Gabyshev, N; Garmash, A; Golob, B; Perdekamp, MG; Haba, J; Hayasaka, K; Horii, Y; Hoshi, Y; Hou, W-S; Hyun, HJ; Inami, K; Ishikawa, A; Iwabuchi, M; Iwasaki, Y; Iwashita, T; Joshi, NJ; Kichimi, H; Kim, HO; Kim, MJ; Ko, BR; Kumita, T; Lange, JS; Lee, MJ; Lee, S-H; Leitgab, M; Li, Y; Liu, C; Liventsev, D; Louvot, R; McOnie, S; Miyata, H; Miyazaki, Y; Mizuk, R; Mohanty, GB; Nakano, E; Nishida, S; Nitoh, O; Ogawa, A; Ohshima, T; Okuno, S; Pakhlova, G; Park, H; Park, HK; Petrič, M; Piilonen, LE; 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, CH; Wang, M-Z; Wang, P; Watanabe, Y; Won, E; Yabsley, BD; Yamashita, Y; Zhilich, V; Zhou, P; Zhulanov, V; Belle Collaboration,

Published Date

  • August 12, 2011

Published In

Volume / Issue

  • 107 / 7

Start / End Page

  • 072004 -

PubMed ID

  • 21902387

Pubmed Central ID

  • 21902387

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.107.072004


  • eng