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Factorization for jet production in heavy-ion collisions

Mehtar-Tani, Yacine [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000164543782)·Ringer, Felix [Stony Brook Univ., NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Old Dominion Univ., Norfolk, VA (United States)] (ORCID:0000000259393510)·Singh, Balbeer [Univ. of South Dakota, Vermillion, SD (United States)] (ORCID:0009000868842032)·Vaidya, Varun [Univ. of South Dakota, Vermillion, SD (United States)] (ORCID:0000000155594799)
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Abstract

We develop an Effective Field Theory approach for jet observables in heavy-ion collisions, where the jet is treated as an open quantum system interacting with a hot and dense QCD medium. Within this framework, we derive a novel factorization formula for inclusive jet production, expressed as a series expansion with an increasing number of radiating subjet functions that encode forward scattering with the Quark-Gluon Plasma, convolved with perturbative matching coefficients. This work provides a systematic framework for computing jet observables at higher order and understanding their non-perturbative aspects, paving the way for future applications in heavy-ion phenomenology.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS73 NUCLEAR PHYSICS AND RADIATION PHYSICSHeavy ion collisionsJet substructure

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Mehtar-Tani, Yacine [Brookhaven National Laboratory (BNL), Upton, NY (United States)] (ORCID:0000000164543782), Ringer, Felix [Stony Brook Univ., NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Old Dominion Univ., Norfolk, VA (United States)] (ORCID:0000000259393510), Singh, Balbeer [Univ. of South Dakota, Vermillion, SD (United States)] (ORCID:0009000868842032), Vaidya, Varun [Univ. of South Dakota, Vermillion, SD (United States)] (ORCID:0000000155594799). 2025-08-15. Factorization for jet production in heavy-ion collisions. https://doi.org/10.1016/j.physletb.2025.139827

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