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arXiv · 1912.13006

Empirical estimate of the unpolarized dihadron fragmentation functions

Dong Jing Yang·Chung Wen Kao·Seung-il Nam
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Abstract

We estimate the unpolarized dihadron fragmentation functions (uDiFFs) within the framework of the single-cascade jet algorithm. We first obtain the elementary fragmentation functions generating the single hadron fragmentation functions by using the single-cascade jet algorithm. These results are very close to the empirical parametrizations of the single hadron fragmentation functions which are extracted from the experimental data of the $e^+e^-$ annihiliation and semi-inclusive deeply inelastic scatterings (SIDIS). We then use those elementary fragmentation functions to generate the dihadron fragmentation functions by the help of the single-cascade jet algorithm again. The comparison between our empirical results with the results of the Nambu-Jona-Lasinio model and the non-local chiral quark model (NL$\chi$QM) is also presented.

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Dong Jing Yang, Chung Wen Kao, Seung-il Nam. 2019-12-30. Empirical estimate of the unpolarized dihadron fragmentation functions. https://arxiv.org/abs/1912.13006

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