{ "id": "1306.4661", "version": "v4", "published": "2013-06-19T19:40:50.000Z", "updated": "2014-08-26T13:38:12.000Z", "title": "Wave functions of the Q.Q interaction in terms of unitary 9-j coefficients", "authors": [ "L. Zamick", "Y. Y. Sharon", "A. Escuderos", "T. Hoang", "S. J. Q. Robinson" ], "categories": [ "nucl-th" ], "abstract": "We obtain wave functions for 2 protons and 2 neutrons in the g_{9/2} shell expressed as column vectors with amplitudes D(J_{p},J_{n}). When we use a quadrupole-quadrupole interaction (Q.Q)we get, in many cases, a very strong overlap with wave functions given by a single set of unitary 9j coefficients --U9j= ((jj)^{2j} (jj^{J_{B}} \\ (jj)^{J_{p}} (jj)^{J_{n}})^{I}. Here J_{B} = 9 or even I T=0 states. Fot I even T=1 states and odd I T=0 states we take J_{B} =8 whilst for odd I T=1 J_{B} is taken to be 7.", "revisions": [ { "version": "v3", "updated": "2013-07-15T02:19:19.000Z", "title": "Four Particles and Eight Particles in a Single j- Shell-The Backbone of the Shell Model", "abstract": "Previous results of single -j shell calculations for ^{44} Ti and ^{48} Cr are compared to experiment. In the single j-shell approximation for these N=Z nucliewe have respectively four partilces and eight particles in the f_{7/2} shell. Agreement is not perfect but is sufficiently good to lend support to the validity of the shell model. We comapre B(E2)'s in the Shell, Rotational and Vibrational Models for ^{44} Ti and ^{48} Cr. We discuss the I=0 ground state wave functions of even-even Ti isotopes usnng isospin considerations.", "comment": null, "journal": null, "doi": null }, { "version": "v4", "updated": "2014-08-26T13:38:12.000Z" } ], "analyses": { "subjects": [ "21.60.Cs", "21.30.Fe" ], "keywords": [ "shell model", "shell-the backbone", "ti isotopes usnng isospin considerations", "even-even ti isotopes usnng isospin", "ground state wave functions" ], "publication": { "doi": "10.1103/PhysRevC.91.034331" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1239200, "adsabs": "2013arXiv1306.4661Z" } } }