Nucleon parton distributions in a light-front quark model

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Generalized Parton Distributions in the Light-Front Constituent Quark Model

The Generalized Parton Distributions (GPDs) of the nucleon are analyzed within the relativistic constituent quark model formulated on the light-front. It is shown that the matrix elements of the plus component of the one-body vector current are plagued by spurious effects related to the dependence on the hyperplane where the nucleon wave function is defined in terms of its constituents. The phy...

متن کامل

Polarized Parton Distributions in Light-front Dynamics

We present a consistent calculation of the structure functions within a light-front constituent quark model of the nucleon. Relativistic effects and the relevance of the covariance constraints are analyzed for polarized parton distributions. Various models, which differ in their gluonic structure at the hadronic scale, are investigated. The results of the full covariant calculation are compared...

متن کامل

Light-Front Dynamics and Generalized Parton Distributions

High energy reactions necessarily involve large momentum transfer to the target’s constituents, which thus rebound near light speed. The experimentally observed correlation between initial and final states measures the system’s response along the light cone. A convenient theoretical description of such reactions is light-front dynamics where the properties of physical states are described along...

متن کامل

Polarized parton distributions and Light-Front Dynamics

We present a consistent calculation of the polarized structure functions within a light-front covariant quark model of the nucleon. We analyze the effect of relativity in the momentum distributions and discuss its relevance for the structure functions by recalling previous calculations using non-relativistic models. We show explicit calculations of the polarized gluon distribution in various mo...

متن کامل

Hadron Distributions in a Quark - Parton Model

We present distributions in longitudinal and transverse momentum for hadrons produced in various deep inelastic processes for a particular picture of quark dressing. The sensitivity of various parameters in the model to presently available data is explored. Predictions are also made for the correlations expected in proton-proton scattering events which yield a high transverse momentum pion or k...

متن کامل

ذخیره 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: 2017

ISSN: 1434-6044,1434-6052

DOI: 10.1140/epjc/s10052-017-4648-5