Transverse momentum dependent (TMD) parton distribution functions: status and prospects

R. Angeles-Martinez, A. Bacchetta, I. I. Balitsky, D. Boer, M. Boglione, R. Boussarie, F. A. Ceccopieri, I. O. Cherednikov, P. Connor, M. G. Echevarria, G. Ferrera, J. Grados Luyando, F. Hautmann*, H. Jung, T. Kasemets, K. Kutak, J. P. Lansberg, A. Lelek, G. Lykasov, J. D. Madrigal MartinezP. J. Mulders, E. R. Nocera, E. Petreska, C. Pisano, R. Placakyte, V. Radescu, M. Radici, G. Schnell, I. Scimemi, A. Signori, L. Szymanowski, S. Taheri Monfared, F. F. Van der Veken, H. J. van Haevermaet, P. Van Mechelen, A. A. Vladimirov, S. Wallon

*Corresponding author for this work

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Abstract

We review transverse momentum dependent (TMD) parton distribution functions, their application to topical issues in high-energy physics phenomenology, and their theoretical connections with QCD resummation, evolution and factorization theorems. We illustrate the use of TMDs via examples of multi-scale problems in hadronic collisions. These include transverse momentum q(T) spectra of Higgs and vector bosons for low q(T), and azimuthal correlations in the production of multiple jets associated with heavy bosons at large jet masses. We discuss computational tools for TMDs, and present the application of a new tool, TMDLIB, to parton density fits and parameterizations.

Original languageEnglish
Pages (from-to)2501-2534
Number of pages34
JournalActa Physica Polonica B
Volume46
Issue number12
DOIs
Publication statusPublished - Dec-2015

Keywords

  • DEEP-INELASTIC SCATTERING
  • PROTON-PROTON COLLISIONS
  • MONTE-CARLO GENERATOR
  • HIGH-ENERGY FACTORIZATION
  • HARD-COLLINEAR COEFFICIENTS
  • DIFFERENTIAL CROSS-SECTION
  • SINGLE-SPIN ASYMMETRIES
  • HEAVY FLAVOR PRODUCTION
  • VECTOR-BOSON PRODUCTION
  • SMALL-X EVOLUTION

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