Self-consistent pushing and cranking corrections to the meson fields of the chiral quark-loop soliton

被引:16
|
作者
Schleif, M
Wunsch, R
Meissner, T
机构
[1] Rossendorf Inc, Forschungszentrum Rossendorf EV, Inst Kern & Hadronenphys, D-01314 Dresden, Germany
[2] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
关键词
D O I
10.1142/S0218301398000063
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
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 less than or equal to M less than or equal to 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.
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页码:121 / 138
页数:18
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