GPD phenomenology and DVCS fitting
نویسندگان
چکیده
منابع مشابه
v 2 1 3 Ja n 19 98 Higher orders and IR renormalon phenomenology in DVCS
We present the results on the evaluation of the higher order perturbative corrections to Compton scattering in the generalized Bjorken kinematics. The approach we have used is based on the combination of two techniques: conformal operator product expansion, on the one side, and resummation of the fermion vacuum insertions with consequent restoration of the full QCD β-function via the naive nona...
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We have developed a fitting code based on the leading-twist handbag Deep Virtual Compton Scattering (DVCS) amplitude in order to extract Generalized Parton Distribution (GPD) information from DVCS observables in the valence region. In a first stage, with simulations and pseudo-data, we show that the full GPD information can be recovered from experimental data if enough observables are measured....
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The beam charge asymmetry helps to isolate the real part of the deeply virtual Compton scattering (DVCS) amplitude. It is discussed what information can be gained both from the real and imaginary part of the DVCS amplitude. INTRODUCTION Form factors are the coherent amplitude that the nucleon remains intact when one of its quarks absorbs a certain momentum transfer ∆μ . In this amplitude, the c...
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Deeply Virtual Compton Scattering is the simplest interaction that allows access to Generalised Parton Distributions (GPDs), a theoretical framework that can be used to describe nucleon structure. The strong interest in GPDs results from the fact that they offer access to the total angular momentum of quarks inside the nucleon and to a 3-dimensional picture of nucleon structure. The measurement...
متن کاملDVCS with CLAS
Generalized parton distributions provide a unifying framework for the interpretation of exclusive reactions at high Q2. The most promising reaction for the investigation of these distributions is the hard production of photons using Deeply Virtual Compton Scattering (DVCS). This reaction can be accessed experimentally by determining the production asymmetry using polarized electrons on a proton...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2016
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2016-16157-3