Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production

• Published in: The journal of high energy physics Vol. 2017; no. 6; pp. 1 - 35
• Main Authors: Bacchetta, Alessandro, Delcarro, Filippo, Pisano, Cristian, Radici, Marco, Signori, Andrea
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-06-2017; Springer Nature B.V; Springer Berlin; SpringerOpen
• Subjects: Classical and Quantum Gravitation; Deep Inelastic Scattering (Phenomenology); Elementary Particles; Extraction; High energy physics; Inelastic scattering; Matching; Mathematical analysis; Physics; Physics and Astronomy; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD Phenomenology; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; String Theory; Transverse momentum; Deep Inelastic Scattering (Phenomenology); QCD Phenomenology
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP06(2017)081

A
bstract
We present an extraction of unpolarized partonic transverse momentum distributions (TMDs) from a simultaneous fit of available data measured in semi-inclusive deep-inelastic scattering, Drell-Yan and
Z
boson production. To connect data at different scales, we use TMD evolution at next-to-leading logarithmic accuracy. The analysis is restricted to the low-transverse-momentum region, with no matching to fixed-order calculations at high transverse momentum. We introduce specific choices to deal with TMD evolution at low scales, of the order of 1 GeV
2
. This could be considered as a first attempt at a global fit of TMDs.