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arXiv · 1605.05621

Drag induced radiative energy loss of semi-hard heavy quarks

Raktim Abir·Shanshan Cao·Abhijit Majumder·Guang-You Qin
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Abstract

We revisited gluon bremsstrahlung off a heavy quark in nuclear matter within higher twist formalism. In this work, we demonstrate that, in addition to transverse momentum diffusion parameter ($\hat q$), the gluon emission spectrum for a heavy quark is quite sensitive to $\hat e$, which quantify the amount of light-cone drag experienced by a parton. This effect leads to an additional energy loss term for heavy-quarks. From heavy flavor suppression data in ultra-relativistic heavy-ion collisions one can now estimate the value of this sub-leading non-perturbative jet transport parameter ($\hat e$) from our results.

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Raktim Abir, Shanshan Cao, Abhijit Majumder, Guang-You Qin. 2016-05-18. Drag induced radiative energy loss of semi-hard heavy quarks. https://doi.org/10.1016/j.nuclphysbps.2016.05.038

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