{ "id": "0805.4073", "version": "v4", "published": "2008-05-27T08:53:44.000Z", "updated": "2009-07-06T06:13:58.000Z", "title": "Nuclear deformation and neutrinoless double-$β$ decay of $^{94,96}$Zr, $^{98,100}$Mo, $^{104}$Ru, $^{110}$Pd, $^{128,130}$Te and $^{150}$Nd nuclei in mass mechanism", "authors": [ "K. Chaturvedi", "R. Chandra", "P. K. Rath", "P. K. Raina", "J. G. Hirsch" ], "comment": "15 pages, 1 figure", "journal": "Phys. Rev. C 78, 054302 (2008)", "doi": "10.1103/PhysRevC.78.054302", "categories": [ "nucl-th" ], "abstract": "The $(\\beta ^{-}\\beta ^{-})_{0\\nu}$ decay of $^{94,96}$Zr, $^{98,100}$Mo, $^{104}$Ru, $^{110}$Pd, $^{128,130}$Te and $^{150}$Nd isotopes for the $0^{+}\\to 0^{+}$ transition is studied in the Projected Hartree-Fock-Bogoliubov framework. In our earlier work, the reliability of HFB intrinsic wave functions participating in the $\\beta ^{-}\\beta ^{-}$ decay of the above mentioned nuclei has been established by obtaining an overall agreement between the theoretically calculated spectroscopic properties, namely yrast spectra, reduced $B(E2$:$0^{+}\\to 2^{+})$ transition probabilities, quadrupole moments $Q(2^{+})$, gyromagnetic factors $g(2^{+})$ as well as half-lives $T_{1/2}^{2\\nu}$ for the $0^{+}\\to 0^{+}$ transition and the available experimental data. In the present work, we study the $(\\beta ^{-}\\beta ^{-})_{0\\nu}$ decay for the $0^{+}\\to 0^{+}$ transition in the mass mechanism and extract limits on effective mass of light as well as heavy neutrinos from the observed half-lives $T_{1/2}^{0\\nu}(0^{+}\\to 0^{+})$ using nuclear transition matrix elements calculated with the same set of wave functions. Further, the effect of deformation on the nuclear transition matrix elements required to study the $(\\beta ^{-}\\beta ^{-})_{0\\nu}$ decay in the mass mechanism is investigated. It is noticed that the deformation effect on nuclear transition matrix elements is of approximately same magnitude in $(\\beta ^{-}\\beta ^{-})_{2\\nu}$ and $(\\beta ^{-}\\beta ^{-})_{0\\nu}$ decay.", "revisions": [ { "version": "v4", "updated": "2009-07-06T06:13:58.000Z" } ], "analyses": { "subjects": [ "23.40.Bw", "23.40.Hc", "21.60.Jz", "27.60.+j" ], "keywords": [ "nuclear transition matrix elements", "mass mechanism", "nd nuclei", "nuclear deformation" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review C", "year": 2008, "month": "Nov", "volume": 78, "number": 5, "pages": "054302" }, "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "inspire": 786678, "adsabs": "2008PhRvC..78e4302C" } } }