ar X iv : n uc l - th / 9 41 10 13 v 1 1 5 N ov 1 99 4 Generalized Pseudo - SU ( 3 ) Model and Pairing ∗
نویسنده
چکیده
The pseudo-SU(3) model is extended to explicitly include the spin and protonneutron degrees of freedom. A general formalism for evaluating matrix elements of one-body and two-body tensor operators within this framework is presented. The pairing interaction, which couples different irreducible representations of SU(3), is expressed in terms of pseudo-space tensors and a general result is given for calculating its matrix elements. The importance of pairing correlations in pseudo-SU(3) model calculations is demonstrated by examining the dependence of wavefunctions, lowenergy collective excitation spectra, and moments of inertia on the strength of the pairing interaction.
منابع مشابه
ar X iv : n uc l - th / 9 71 10 28 v 1 1 4 N ov 1 99 7 A clue to the mechanism of Λ K + production in pp - reactions ∗
متن کامل
ar X iv : n uc l - th / 0 41 10 83 v 1 1 9 N ov 2 00 4 Electromagnetic transitions for A = 3 nuclear systems
Recent advances in the study of pd radiative capture in a wide range of center-of-mass energy below and above deuteron breakup threshold are presented and discussed.
متن کاملar X iv : n uc l - th / 9 60 80 57 v 2 1 8 N ov 1 99 6 Strong decays of nonstrange q 3 baryons
متن کامل
ar X iv : h ep - l at / 9 41 10 15 v 1 9 N ov 1 99 4 1 Instanton size distributions from calibrated cooling
Using an under-relaxed cooling algorithm we investigated the vacuum in the 2d O(3) model and 4d pure gauge SU (2). We calibrated the amount of cooling performed to have similar physical effect at different lattice spacings.
متن کاملar X iv : d g - ga / 9 41 10 11 v 1 2 3 N ov 1 99 4 The number of functionally independent invariants of a pseudo – Riemannian metric
The number of functionally independent scalar invariants of arbitrary order of a generic pseudo–Riemannian metric on an n–dimensional manifold is determined.
متن کامل