Precision studies at the LHC increasingly require theoretical control over QCD radiation beyond fixed-order perturbation theory, particularly in final states characterised by large separations in rapidity. High-energy logarithms can generate corrections at the ten-percent level even for electroweak-scale observables, a...
We investigate the fragmentation dynamics underlying the production of fully heavy tetraquarks by means of the TQ4Q2.0 collinear FF set, covering scalar ($0^{++}$), axial-vector ($1^{+-}$), and tensor ($2^{++}$) configurations. The fragmentation inputs are determined within NRQCD factorization for the complete set of r...
We discuss a new family of publicly available collinear fragmentation functions (FFs) for pseudoscalar quarkonia, the NRFF1.0 set. It builds upon the Heavy-Flavor Non-Relativistic evolution (HF-NRevo) scheme, designed to describe heavy-hadron formation through leading-power fragmentation at moderate and large transvers...
We investigate the mechanisms underlying exotic hadron formation via the TQ4Q1.1 set of collinear fragmentation functions for fully charmed or bottomed tetraquarks in three quantum configurations: scalar (\(0^{++}\)), axial vector (\(1^{+-}\)), and tensor (\(2^{++}\)). We adopt leading-power single-parton fragmentation...
F. Celiberto· Acta Physica Polonica B, Pro...· 0 citations
We present a comprehensive high-energy overview of all-heavy tetraquark production at the High-Luminosity Large Hadron Collider, combining recent advances in heavy-exotic spectroscopy with state-of-the-art fragmentation-based phenomenology. Our study builds upon the newly released TQ4Q2.0 fragmentation framework, which...
All-heavy pentaquarks provide a unique laboratory for exploring the interplay between exotic-hadron structure, heavy-quark dynamics, and perturbative Quantum Chromodynamics (QCD). In this review, we present the completed release of the uncertainty-aware collinear fragmentation-function family PQ5Q1.1, covering both all...
F. Celiberto· Symmetry· 1 citation
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