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arXiv · 1806.04723

Color randomization of fast gluon-gluon pairs in the quark-gluon plasma

B. G. Zakharov
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Abstract

We study the color randomization of two-gluon states produced after splitting of a primary fast gluon in the quark-gluon plasma. We find that for the LHC conditions the color randomization of the $gg$ pairs is rather slow. At jet energies $E=100$ and $500$ GeV, for typical jet path length in the plasma in central Pb+Pb collisions, the $SU(3)$-multiplet averaged color Casimir of the $gg$ pair differs considerably from its value $2N_c$ for a fully randomized $gg$ state. Our calculations of the energy dependence for generation of the nearly collinear decuplet $gg$ states, that can lead to the baryon jet fragmentation, show that the contribution of the anomalous decuplet color states to the baryon production should become small at $p_T\gtrsim 10$ GeV.

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B. G. Zakharov. 2018-07-18. Color randomization of fast gluon-gluon pairs in the quark-gluon plasma. https://doi.org/10.1134/s1063776119020146

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