Thursday, July 19, 2012

1207.4267 (Andrew Casey et al.)

Dihadron Fragmentation Functions from the NJL-jet model and their QCD
Evolution
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Andrew Casey, Ian C. Cloët, Hrayr H. Matevosyan, Anthony W. Thomas
We present results for dihadron fragmentation functions from the NJL-jet model evolved from the model scale to a typical experimental scale of $4 \mathrm{GeV}^2$. The numerical method used in this evolution is discussed in detail. The effect of evolution on the shapes of the dihadron fragmentation functions is discussed for a doubly favored process ($u \to \pi^+\pi^-$), as well as a singly favored ($u \to \pi^+K^-$) process involving light quarks. Finally, we explore the production of $K^+ K^-$ pairs from an initial $u$, $d$ or $s$ quark.
View original: http://arxiv.org/abs/1207.4267

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