Phenomenological extraction of a universal TMD fragmentation function from single hadron production in e⁺ e^- annihilations

2021/08/09 by M. Boglione, Boglione, M., J. O. Gonzalez-Hernandez +3
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.2108.04182

To appear in the Proceedings of the XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2021)

openalex publication_date 2021/08/09 · arxiv created 2021/08/10 · arxiv updated 2021/08/11 · openalex created_date 2022/08/28 · openalex updated_date 2026/07/28

Abstract

Factorizing the cross section for single hadron production in e⁺e^- annihilations, differential in z_h, P_T and thrust, is a highly non trivial task. We have devised a factorization scheme that allows us to recast the e⁺e^- → hX cross section in the convolution of a perturbatively calculable coefficient and a universal Transverse Momentum Dependent (TMD) Fragmentation Function (FF). The predictions obtained from our NLO-NLL perturbative computation, together with a simple ansatz to model the non-perturbative part of the TMD, are applied to the experimental measurements of the BELLE Collaboration for the phenomenological extraction of this process independent TMD FF.

Related

• Λ polarizing fragmentation function from Belle e⁺e^- data
• Transverse momentum dependent gluon fragmentation functions from J/ψ π production at e⁺ e^- colliders
• Global analysis of hadron-production data in e⁺ e^- annihilation for determining fragmentation functions
• QCD factorization with multihadron fragmentation functions
• Perturbative description of inclusive single hadron production at HERA