Garzia, I. (2013) Measurement of Collins asymmetries in inclusive production of pion pairs in e+e− interactions at BaBar. Il nuovo cimento C, 36 (5). pp. 181-184. ISSN 1826-9885
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Abstract
We present a preliminary measurement of Collins asymmetries in inclusive production of charged pions for the process e+e − → q¯q → ππX, at the center-of-mass energy near 10.6GeV. We use a data sample corresponding to 468 fb−1 integrated luminosity collected by the BaBar experiment, and we consider pairs of charged pions produced in opposite jets in hadronic events. We measure azimuthal asymmetries in the pions distributions as a function of pion fractional energies, pion transverse momenta, and polar angle of the analysis axis. We confirm a non-zero Collins effect as observed by previous experiments.
| Item Type: | Article |
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| Uncontrolled Keywords: | Hadron production in e−e+ interactions ; Fragmentation into hadrons |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 06 May 2020 16:36 |
| Last Modified: | 06 May 2020 16:36 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18343 |
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