Details

Autor(en) / Beteiligte

• Li, H.
• Aulchenko, V.
• Aushev, T.
• Babu, V.
• Badhrees, I.
• Bakich, A. M.
• Bennett, J.
• Bhardwaj, V.
• Bilka, T.
• Biswal, J.
• Bobrov, A.
• Campajola, M.
• Cao, L.
• Červenkov, D.
• Chekelian, V.
• Chen, A.
• Cho, H. E.
• Cho, K.
• Choudhury, S.
• Cunliffe, S.
• Di Capua, F.
• Dong, T. V.
• Eidelman, S.
• Ferber, T.
• Gaur, V.
• Garmash, A.
• Hartbrich, O.
• Huang, K.
• Inami, K.
• Itoh, R.
• Iwasaki, M.
• Jacobs, W. W.
• Jang, E.-J.
• Jia, S.
• Jin, Y.
• Kang, K. H.
• Karyan, G.
• Kim, S. H.
• Kodyš, P.
• Korpar, S.
• Križan, P.
• Kroeger, R.
• Krokovny, P.
• Kwon, Y.-J.
• Lee, S. C.
• Li, Y. B.
• Li Gioi, L.
• Libby, J.
• Lieret, K.
• MacQueen, C.
• Masuda, M.
• Matsuda, T.
• Miyabayashi, K.
• Miyata, H.
• Mizuk, R.
• Mussa, R.
• Nakano, T.
• Nath, K. J.
• Natkaniec, Z.
• Nishida, S.
• Ono, H.
• Ostrowicz, W.
• Pakhlov, P.
• Pakhlova, G.
• Pal, B.
• Patra, S.
• Paul, S.
• Pedlar, T. K.
• Piilonen, L. E.
• Popov, V.
• Russo, G.
• Sahoo, D.
• Sanuki, T.
• Savinov, V.
• Schneider, O.
• Schueler, J.
• Schwanda, C.
• Senyo, K.
• Shiu, J.-G.
• Simon, F.
• Starič, M.
• Stottler, Z. S.
• Takizawa, M.
• Tanida, K.
• Tenchini, F.
• Uglov, T.
• Uno, S.
• Van Tonder, R.
• Varner, G.
• Wang, B.
• Wang, C. H.
• Wang, P.
• Watanabe, M.
• Won, E.
• Yang, S. B.
• Ye, H.
• Zhang, Z. P.
• Zhilich, V.
• Zhukova, V.
• Zhulanov, V.

Titel

Azimuthal asymmetries of back-to-back π ± − ( π 0 ,   η ,   π ± ) pairs in e + e − annihilation

Ist Teil von

• Physical review. D, 2019-11, Vol.100 (9), p.1, Article 092008

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work reports the first observation of azimuthal asymmetries around the thrust axis in e+e− annihilation of pairs of back-to-back charged pions in one hemisphere, and π0 and η mesons in the opposite hemisphere. These results are complemented by a new analysis of pairs of back-to-back charged pions. The π0 and η asymmetries rise with the relative momentum z of the detected hadrons as well as with the transverse momentum with respect to the thrust axis. These asymmetries are sensitive to the Collins fragmentation function H1⊥ and provide complementary information to previous measurements with charged pions and kaons in the final state. In particular, the η final states will provide additional information on the flavor structure of H1⊥. This is the first measurement of the explicit transverse-momentum dependence of the Collins fragmentation function from Belle data. It uses a dataset of 980.4 fb−1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV.