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

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-l...

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Bibliographic Details
Published in:The journal of high energy physics 2017-06, Vol.2017 (6), p.1-35, Article 81
Main Authors: Bacchetta, Alessandro, Delcarro, Filippo, Pisano, Cristian, Radici, Marco, Signori, Andrea
Format: Article
Language:English
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
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Summary: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.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2017)081