Document Type

Article

Publication Date

2017

DOI

10.1016/j.physletb.2017.06.034

Publication Title

Physics Letters B

Volume

772

Pages

78-86

Abstract

We study the transverse momentum distributions of single inclusive hadron production in e+e− annihilation processes. Although the only available experimental data are scarce and quite old, we find that the fundamental features of transverse momentum dependent (TMD) evolution, historically addressed in Drell–Yan processes and, more recently, in Semi-inclusive deep inelastic scattering processes, are visible in e+e− annihilations as well. Interesting effects related to its non-perturbative regime can be observed.

We test two different parameterizations for the p⊥ dependence of the cross section: the usual Gaussian distribution and a power-law model. We find the latter to be more appropriate in describing this particular set of experimental data, over a relatively large range of p⊥ values. We use this model to map some of the features of the data within the framework of TMD evolution, and discuss the caveats of this and other possible interpretations, related to the one-dimensional nature of the available experimental data.

Comments

Open Access funded by SCOAP3 - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license (https://creativecommons.org/licenses/by/4.0/).

Original Publication Citation

Boglione, M., Gonzalez-Hernandez, J. O., & Taghavi, R. (2017). Transverse parton momenta in single inclusive hadron production in e+e− annihilation processes. Physics Letters B, 772, 78-86. doi:10.1016/j.physletb.2017.06.034

ORCID

0000-0003-4352-9564 (Gonzalez-Hernandez)

Download

Share

COinS