Heavy-Flavor Fragmentation and Jet Structure from HF-NRevo: Bridging to Heavy-Ion Collisions

TL;DR

This paper introduces the HF-NRevo framework for modeling heavy-flavor fragmentation and jet structure, providing a baseline for in-medium modifications in heavy-ion collisions and aiding future collider studies.

Contribution

The paper develops the HF-NRevo framework based on NLO NRQCD and DGLAP evolution, enabling detailed modeling of heavy-flavor fragmentation and jet phenomena in nuclear environments.

Findings

Constructed collinear fragmentation functions using DGLAP evolution.

Outlined future applications in heavy-ion collision modeling.

Provides a baseline for medium-modified fragmentation functions.

Abstract

We present recent progress on the Heavy-Flavor Non-Relativistic Evolution (HF-NRevo) framework, designed to describe leading-power fragmentation of heavy-flavored hadrons at moderate to large transverse momentum. Starting from NLO NRQCD calculations for all partonic channels into pseudoscalar quarkonia, we construct the NRFF1.0 collinear fragmentation functions via DGLAP evolution in a variable-flavor number scheme. We outline future prospects in the heavy-ion context, where HF-NRevo can serve as a baseline for modeling in-medium modifications of heavy-flavor fragmentation in nuclear collisions. Its accurate modeling of the partonic hierarchy and threshold effects makes it ideally suited to explore jet-quenching sensitivity, energy-loss mechanisms, and the emergence of medium-modified fragmentation functions in the quark-gluon plasma. Moreover, it provides a natural baseline for implementing in-medium hadronization scenarios, including quarkonium regeneration and fragmentation-function apparent-shape distortion. These developments provide new handles for exploring heavy-flavor dynamics at the HL-LHC and future collider facilities.