Effects of TMD evolution and partonic flavor on e+e− annihilation into hadrons

A. Bacchetta; M. Garcia; P.J.G. Mulders; M. Radici; A. Signori

doi:10.1007/JHEP11(2015)076

Effects of TMD evolution and partonic flavor on e+e− annihilation into hadrons

A. Bacchetta, M. Garcia, P.J.G. Mulders, M. Radici, A. Signori

(Astro)-Particles Physics

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Abstract

Abstract: We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of Bes-III and Belle experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted from the semi-inclusive deep-inelastic-scattering multiplicities at low energy from Hermes. TMD evolution is applied according to different approaches and using different parameters for the nonperturbative part of the evolution kernel, thus exploring the sensitivity of our results to these different choices and to the flavor dependence of parton fragmentation functions. We discuss how experimental measurements could discriminate among the various scenarios.

Original language	English
Journal	Journal of High Energy Physics
Volume	76
DOIs	https://doi.org/10.1007/JHEP11(2015)076
Publication status	Published - 2015

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title = "Effects of TMD evolution and partonic flavor on e+e− annihilation into hadrons",

abstract = "Abstract: We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of Bes-III and Belle experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted from the semi-inclusive deep-inelastic-scattering multiplicities at low energy from Hermes. TMD evolution is applied according to different approaches and using different parameters for the nonperturbative part of the evolution kernel, thus exploring the sensitivity of our results to these different choices and to the flavor dependence of parton fragmentation functions. We discuss how experimental measurements could discriminate among the various scenarios.",

author = "A. Bacchetta and M. Garcia and P.J.G. Mulders and M. Radici and A. Signori",

year = "2015",

doi = "10.1007/JHEP11(2015)076",

language = "English",

volume = "76",

journal = "Journal of High Energy Physics",

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T1 - Effects of TMD evolution and partonic flavor on e+e− annihilation into hadrons

AU - Bacchetta, A.

AU - Garcia, M.

AU - Mulders, P.J.G.

AU - Radici, M.

AU - Signori, A.

PY - 2015

Y1 - 2015

N2 - Abstract: We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of Bes-III and Belle experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted from the semi-inclusive deep-inelastic-scattering multiplicities at low energy from Hermes. TMD evolution is applied according to different approaches and using different parameters for the nonperturbative part of the evolution kernel, thus exploring the sensitivity of our results to these different choices and to the flavor dependence of parton fragmentation functions. We discuss how experimental measurements could discriminate among the various scenarios.

AB - Abstract: We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of Bes-III and Belle experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted from the semi-inclusive deep-inelastic-scattering multiplicities at low energy from Hermes. TMD evolution is applied according to different approaches and using different parameters for the nonperturbative part of the evolution kernel, thus exploring the sensitivity of our results to these different choices and to the flavor dependence of parton fragmentation functions. We discuss how experimental measurements could discriminate among the various scenarios.

U2 - 10.1007/JHEP11(2015)076

DO - 10.1007/JHEP11(2015)076

M3 - Article

SN - 1126-6708

VL - 76

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

ER -

Effects of TMD evolution and partonic flavor on e+e− annihilation into hadrons

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