https://doi.org/10.1140/epja/i2003-10240-x
Strange and singlet form factors of the nucleon: Predictions for G0, A4, and HAPPEX II experiments
1
Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780, Bochum, Germany
2
Departamento de Física and Centro de Física Computacional, Universidade de Coimbra, P-3000, Coimbra, Portugal
3
Pusan National University, 609-735, Busan, Republic of Korea
* e-mail: hchkim@pusan.ac.kr
Received:
27
August
2003
Accepted:
8
July
2004
Published online:
11
November
2004
We investigate the strange and flavor-singlet electric and magnetic form factors of the nucleon within the framework of the SU(3) chiral quark-soliton model. Isospin symmetry is assumed and the symmetry-conserving SU(3) quantization is employed, rotational and strange-quark mass corrections being included. For the experiments G0, A4, and HAPPEX II we predict the quantities G 0 E + βG 0 M and G s E + βG s M. The dependence of the results on the parameters of the model and the treatment of the Yukawa asymptotic behavior of the soliton are investigated.
PACS: 12.40.-y Other models for strong interactions – / 14.20.Dh Protons and neutrons –
© Società Italiana di Fisica and Springer-Verlag, 2004