The statistical parton distributions: status and prospects
نویسندگان
چکیده
منابع مشابه
Generalized parton distributions: Status and perspectives
We summarize recent developments in understanding the concept of generalized parton distributions (GPDs), its relation to nucleon structure, and its application to high–Q2 electroproduction processes. Following a brief review of QCD factorization and transverse nucleon structure, we discuss (a) new theoretical methods for the analysis of deeply–virtual Compton scattering (t–channel–based GPD pa...
متن کاملFunctional statistical inference of parton distributions
The parton model is applicable to large momentum transfer hadronic processes. Scaling in hadronic cross-sections is interpreted in the parton model as a consequence of the existence of charged pointlike constituents in hadrons. Parton model cross-sections are calculated by combining amplitudes for the scattering of these constituents with probability densities (parton distribution functions) fo...
متن کاملStatus of Deeply Inelastic Parton Distributions
A brief review on the status of unpolarized parton densities and the determination of the QCD scale ΛQCD from deep-inelastic scattering data is presented.
متن کاملRecent status of polarized parton distributions
We study an influence of precise data on uncertainty of polarized parton distribution functions. This analysis includes the SLAC-E155 proton target data which are precise measurements. Polarized PDF uncertainties are estimated by using the Hessian matrix. We examine correlation effect between the antiquark and gluon uncertainties. It suggests that reducing the gluon uncertainty is needed to det...
متن کاملQuantum Statistical Parton Distributions and the Spin Crisis
Quantum statistical distributions for the partons provide a fair description of deep inelastic scattering data at Q2 = 3 and 10 (GeV/c)2. The study of the polarized structure functions seems to suggest an alternative possible solution of the spin crisis based on the Pauli principle. In this scheme, in fact, the defects of the Gottfried sum rule and Ellis–Jaffe sum rule for proton, result strong...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2005
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2005-02205-2