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arXiv · 2409.06675

Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions

Souvik Priyam Adhya·Krzysztof Kutak·Wieslaw Placzek·Martin Rohrmoser·Konrad Tywoniuk
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Abstract

In this work, we study for the first time jet-medium interactions in heavy-ion collisions with introduction of saturation and Sudakov effects with parameters tuned for upcoming forward calorimeter acceptances in experiments, in particular the ALICE FoCal detector. We focus on $\gamma +$jet correlations by taking into account in-medium parton evolution using the BDIM equation that describes jet interactions with the quark-gluon plasma (QGP) combined with vacuum-like emissions (VLE). We systematically introduce the early time gluon saturation dynamics through the small-$x$ Improved Transverse Momentum Dependent factorization (ITMD). For our purpose, we use Monte Carlo programs KATIE and TMDICE to generate hard events and in-medium parton evolution, respectively. We present results of azimuthal correlations and nuclear modification ratios to gauge the impact of the gluon saturation effects at early time for the in-medium jet energy loss.

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Souvik Priyam Adhya, Krzysztof Kutak, Wieslaw Placzek, Martin Rohrmoser, Konrad Tywoniuk. 2024-09-10. Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions. https://doi.org/10.1140/epjc%2Fs10052-025-14020-4

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