Year: 2010
Type: article
Abstract: A study of the parameterization uncertainty at low Bjorken x⩽0.1 for the parton distribution functions of the proton is presented. The study is based on the HERA I combined data using a flexible parameterization form based on Chebyshev polynomials with and without an additional regularization constraint. The accuracy of the data allows to determine the gluon density in the kinematic range of 0.0005⩽x⩽0.05 with a small parameterization uncertainty. An additional regularization prior leads to a significantly reduced uncertainty for x⩽0.0005.
Source: Physics Letters B
Authors: A. Glazov, S. Moch, V. Radescu
Institutions: Deutsches Elektronen-Synchrotron DESY, Heidelberg University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
Funder: Helmholtz-Gemeinschaft
Awards: G4712547375, G7021019180
OpenAlex ID: W2104524503