arXiv:1507.05267·v1·High Energy Physics — Phenomenology
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🇩🇪
Abstract
We provide a concise overview on 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 an application of a new tool, TMDlib, to parton density fits and parameterizations.
Comments: 20 pages