Even-wave harmonic-oscillator theory of baryonic states. IV. Structure functions versus slope of neutron charge form factor

Gupta, M. ; Mitra, A. N. (1978) Even-wave harmonic-oscillator theory of baryonic states. IV. Structure functions versus slope of neutron charge form factor Physical Review D - Particles, Fields, Gravitation and Cosmology, 18 (5). pp. 1585-1590. ISSN 1550-7998

Full text not available from this repository.

Official URL: http://link.aps.org/doi/10.1103/PhysRevD.18.1585

Related URL: http://dx.doi.org/10.1103/PhysRevD.18.1585

Abstract

The structure of a mixed nucleon facilitated by the even-wave harmonic-oscillator model, which was shown to be quite successful in explaining certain important low-energy parameters such as GA/GV, Δ-->Nπ width, GNNπ, and a few hitherto unresolved cases of baryon photocouplings, is employed, without extra parameters, to study the shape of the n,p structure functions as well as the neutron charge radius squared (‹rn2›). A mixing angle close to the ideal (cotθ=√2) (determined from earlier investigations) is found to give a good account of the ratio Rnp (=F2en/F2ep) except for small values of the scaling variable (z) as well as of the difference Δpn (=F2ep-F2en) over the entire range of z. However, the same angle (θ>0) gives the wrong sign for ‹rn2›. The incompatibility of the sign of ‹rn2› with the behavior of Rnp, as found by A. Le Yaouanc et al., thus remains unresolved in this simplest version of the even-wave model without further assumptions.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:35085
Deposited On:09 Apr 2011 07:41
Last Modified:09 Apr 2011 07:41

Repository Staff Only: item control page