PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Strong Interactions and Hadron Physics
Measurement of Collins asymmetries for kaons and pions at BABAR
G. Vasseur* On behalf of the B A B AR collaboration
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
Inclusive hadron production cross sections and angular distributions in e+ e- collisions shed light on fundamental questions of fragmentation processes. Here are presented measurements of the Collins azimuthal asymmetries in inclusive production of hadron pairs, in the e+ e- to h1 h2 X annihilation process, where the two hadrons, h1 and h2, either kaons or pions, are produced in opposite hemispheres.
The data collected by the BABAR detector allow the determination of the Collins fragmentation function dependence on hadron fractional energy for the up, down and,
for the first time, strange quarks.
DOI: https://doi.org/10.22323/1.282.0604
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