Abstract
We present measurements of Collins asymmetries in the inclusive process , , , , at the center-of-mass energy of 10.6 GeV, using a data sample of collected by the BABAR experiment at the PEP-II factory at SLAC National Accelerator Center. Considering hadrons in opposite thrust hemispheres of hadronic events, we observe clear azimuthal asymmetries in the ratio of unlike sign to like sign, and unlike sign to all charged pairs, which increase with hadron energies. The asymmetries are similar to those measured for the pairs, whereas those measured for high-energy pairs are, in general, larger.
- Received 23 June 2015
DOI:https://doi.org/10.1103/PhysRevD.92.111101
© 2015 American Physical Society