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arXiv · 2510.26237

MC-EKRT: Monte Carlo event generator with saturated minijet production for initializing 3+1 D fluid dynamics in high energy nuclear collisions

Harri Niemi·Jussi Auvinen·Kari J. Eskola·Henry Hirvonen·Yuuka Kanakubo·Mikko Kuha
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Abstract

We present a novel saturation and leading order collinear factorization based Monte-Carlo implementation of the EKRT model for computing QCD matter initial states in high-energy nuclear collisions. As new features the MC implementation gives a full 3-dimensional initial state event-by-event, introduces new event-by-event fluctuating spatially dependent nuclear parton distribution functions, includes dynamical fluctuations in minijet production and saturation, and accounts for the energy-momentum and valence-quark number conservation.

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Harri Niemi, Jussi Auvinen, Kari J. Eskola, Henry Hirvonen, Yuuka Kanakubo, Mikko Kuha. 2025-10-30. MC-EKRT: Monte Carlo event generator with saturated minijet production for initializing 3+1 D fluid dynamics in high energy nuclear collisions. https://arxiv.org/abs/2510.26237

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