The twist-3 parton distribution function e(a)(x) in large-N-c chiral theory

• Type: Article in International Scientific Journal
• Date: 2008

Authors

C. Cebulla (Author) Other; J. Ossman (Author) Other; P. Schweitzer (Author) Other; Diana Maria Carreira Pires Urbano (Author) FEUP

Journal

Title: ACTA PHYSICA POLONICA B

Vol. 39 No. 3

Pages: 609-639

ISSN: 0587-4254

Publisher: Palgrave Macmillan

Indexing

ISI Web of Knowledge - 15 Citations

ISI Web of Science

Scopus - 15 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

CORDIS: Physical sciences > Physics

Other information

Authenticus ID: P-004-0YR

Abstract (EN): The chirally-odd twist-3 parton distribution function ea(x) of the nucleon is studied in the large-Nc limit in the framework of the chiral quarksoliton model. It is demonstrated that in spite of properties not shared by other distribution functions, namely the appearance of a (x)-singularity and quadratic divergences in ea(x), an equally reliable calculation is possible. Among the most remarkable results obtained in this work is the fact that the coefficient of the (x)-singularity can be computed exactly in this model, avoiding involved numerics. Our results complete existing studies in literature.

Language: Portuguese

Type (Professor's evaluation): Scientific