a Record control number 000302285700009

a ISSN 1895-1082

a Original cataloging agency NEU GrandLibrary

a Language code of text/sound track or separate title eng

a Classification number QC 21.3

b Item number .A67 2012

a Personal name Ikhdair, Sameer M.,

h Medium Electronic Document

a Title Approximate kappa-state solutions to the Dirac-Yukawa problem based on the spin and pseudospin symmetry

c Statement of responsibility, etc S. M. Ikhdair.

c Date of publication, distribution, etc 2012.

b Name of publisher, distributor, etc Versita,

a Place of publication, distribution, etc Warsaw :

a Summary, etc Using an approximation scheme to deal with the centrifugal (pseudo-centrifugal) term, we solve the Dirac equation with the screened Coulomb (Yukawa) potential for any arbitrary spin-orbit quantum number kappa. Based on the spin and pseudospin symmetry, analytic bound state energy spectrum formulas and their corresponding upper- and lower-spinor components of two Dirac particles are obtained using a shortcut of the Nikiforov-Uvarov method. We find a wide range of permissible values for the spin symmetry constant C (s) from the valence energy spectrum of particle and also for pseudospin symmetry constant C (ps) from the hole energy spectrum of antiparticle. Further, we show that the present potential interaction becomes less (more) attractive for a long (short) range screening parameter alpha. To remove the degeneracies in energy levels we consider the spin and pseudospin solution of Dirac equation for Yukawa potential plus a centrifugal-like term. A few special cases such as the exact spin (pseudospin) symmetry Dirac-Yukawa, the Yukawa plus centrifugal-like potentials, the limit when alpha becomes zero (Coulomb potential field) and the non-relativistic limit of our solution are studied. The nonrelativistic solutions are compared with those obtained by other methods.

a Topical term or geographic name as entry element Physics

a Topical term or geographic name as entry element Near East University Article

a Topical term or geographic name as entry element Yakın Doğu Üniversitesi Makale

a Topical term or geographic name as entry element Dirac equation

a Topical term or geographic name as entry element Spın symmetry

g Relationship information APR 2012, Vol 10 Issue 2, p361-381

t Title Central European Journal Of Physics

x International Standard Serial Number 18951082

u Uniform Resource Identifier http://library.neu.edu.tr:2048/login?url=http://dx.doi.org/10.2478/s11534-011-0121-5