Strange nucleon form factors: Solitonic approach to G(M)(s), G(E)(s), (G)over-tilde(A)(p) and (G)over-tilde(A)(n) and comparison with world data

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Goeke, K (Autor) Outra; Kim, HC (Autor) Outra; A. Silva (Autor) FEUP; Diana Urbano (Autor) FEUP

Revista

Título: European Physical Journal A

Vol. 32 Nº 4

Páginas: 393-397

ISSN: 1434-6001

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 15 Citações

Scopus - 16 Citações

Outras Informações

ID Authenticus: P-004-9NW

DOI: 10.1140/epja/i2006-10398-7

Abstract (EN): We summarize the results of the chiral quark-soliton model (chi QSM) concerning basically all form factors necessary to interpret the present data of the parity-violating electron scattering experiments SAMPLE, HAPPEX, A4 and G0. The results particularly focus on the recently measured asymmetries and the detailed data for various combinations of G(M)(s), G(E)(s),(G) over bar (p)(A) and (G) over bar (n)(A) at Q 2 = 0.1GeV(2). The calculations yield positive strange magnetic and electric form factors and a negative axial vector one, all being rather small. The results are very close to the combined experimental world data from parity-violating electron scattering and elastic v p and vp scattering.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5