Measurements of the Collins asymmetries for kaons and pions in e+e− annihilations at BABAR
I.N.F.N. sez. di Torino, via P. Giuria, 1, 10125 Torino, Italy
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Published online: 4 July 2016
New measurements of the Collins asymmetries were performed by BABAR exploiting inclusive e+e− → h1h2 X annihilations (with h1,2 = π and/or K) mainly at the energy of the ϒ(4S), which corresponds to a squared transferred momentum Q2 ~ 110 GeV2c4. For the first time asymmetries following strange quarks fragmentation could be derived as a function of the fractional energy carried out by inclusively emitted hadron pairs.
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