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Observation of Transverse Polarization Asymmetries of Charged Pion Pairs in e(+)e(-) Annihilation near root s=10.58 GeV
- Vossen, A.;
- Seidl, R.;
- Adachi, I.;
- Aihara, H.;
- Aushev, T.;
- ... Cheon, Byung Gu;
- 외 94명
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117초록
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 x 10(6) pi(+)pi(-) pairs and was collected at and near the Y(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
키워드
Asymmetric energy; Azimuthal asymmetries; Belle detectors; Charged pions; Collider; Data sample; Fragmentation functions; Transverse polarization
- 제목
- Observation of Transverse Polarization Asymmetries of Charged Pion Pairs in e(+)e(-) Annihilation near root s=10.58 GeV
- 저자
- Vossen, A.; Seidl, R.; Adachi, I.; Aihara, H.; Aushev, T.; Balagura, V.; Bartel, W.; Bischofberger, M.; Bondar, A.; Bracko, M.; Browder, T. E.; Chang, M. -C.; Chen, A.; Chen, P.; Cheon, Byung Gu; Cho, K.; Choi, Y.; Eidelman, S.; Feindt, M.; Gaur, V.; Gabyshev, N.; Garmash, A.; Golob, B.; Perdekamp, M. Grosse; 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.; Petric, 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.; Stanic, S.; Staric, 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.
- 발행일
- 2011-08
- 유형
- Article
- 권
- 107
- 호
- 7
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- 1 ~ 7