Relating transverse structure of various parton distributions
نویسندگان
چکیده
منابع مشابه
Transverse structure of nucleon parton distributions from lattice QCD.
This work presents the first calculation in lattice QCD of three moments of spin-averaged and spin-polarized generalized parton distributions in the proton. It is shown that the slope of the associated generalized form factors decreases significantly as the moment increases, indicating that the transverse size of the light-cone quark distribution decreases as the momentum fraction of the struck...
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I review recent progress in the determination of the parton structure of the nucleon, in particular from deep-inelastic structure functions. I explain how the needs of current and future precision phenomenology, specifically at the LHC, have turned the determination of parton distributions into a quantitative problem. I describe the results and difficulties of current approaches and ideas to go...
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Much of the predictive content of perturbative QCD (pQCD) treatment of the hadronic hard scattering is contained in factorization theorems [ 1]. Their purpose is to separate longfrom short-distance effects in scattering amplitudes. They supply perturbatively uncalculable long-distance effects with physics content in terms of well-defined matrix elements, which allows them to be measured experim...
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Parton distributions play an important role in the QCD description of hard scattering processes. In particular, generalized parton distributions (GPDs) and transverse momentum dependent parton distributions (TMDs) have extensively been studied during the last decade. We focus here on the most general form of quark-quark correlation functions, the socalled generalized transverse momentum depende...
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We study the universality issue of the transverse momentum dependent parton distributions at small x, by comparing the initial and final state interaction effects in di-jet-correlations in pA collisions with those in deep inelastic lepton-nucleus scattering. We demonstrate the nonuniversality by performing an explicit calculation in a particular model where the multiple gauge boson exchange con...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2016
ISSN: 1029-8479
DOI: 10.1007/jhep01(2016)165