Ground state baryon magnetic moments and nucleon axial vector coupling

Pramana ◽  
1985 ◽  
Vol 24 (4) ◽  
pp. 619-628
Author(s):  
Pashupati N Pandit ◽  
M P Khanna
1998 ◽  
Vol 07 (01) ◽  
pp. 121-138 ◽  
Author(s):  
M. Schleif ◽  
R. Wünsch ◽  
T. Maissner

We study translational and spin-isospin symmetry restoration for the two-flavor chiral quark-loop soliton. Instead of a static soliton at rest we consider a boosted and rotating hedgehog soliton. Corrected classical meson fields are obtained by minimizing a corrected energy functional which has been derived by semi-classical methods (variation after projection). We evaluate corrected meson fields in the region 300 MeV ≤ M≤ 600 MeV of constituent quark masses M and compare them with the uncorrected fields. We study the effect of the corrections on various expectation values of nuclear observables such as the root-mean square radius, the axial-vector coupling constant, magnetic moments and the delta-nucleon mass splitting.


2006 ◽  
Vol 639 (3-4) ◽  
pp. 278-282 ◽  
Author(s):  
Véronique Bernard ◽  
Ulf-G. Meißner

1985 ◽  
Vol 63 (11) ◽  
pp. 1425-1426
Author(s):  
Kim Maltman

It is shown that the naive nonrelativistic quark model, in the presence of pion emission and absorption, reproduces the usual Goldberger–Treiman relation for the nucleon axial–vector coupling constant.


1997 ◽  
Vol 55 (7) ◽  
pp. 4066-4082 ◽  
Author(s):  
Frank X. Lee ◽  
Derek B. Leinweber ◽  
Xuemin Jin

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