Anton Nikholaiev Antonov

Nombre:	A. N. Antonov
Institución:	Institute of Nuclear Research and Nuclear Energy,             Bulgarian Academy of Sciences,  Sofia , Bulgaria
Título:	Nucleon  Momentum  Distribution  in  Deuteron     and  Other  Nuclei Within  the  Light-Front      Dynamics Method.  Y-Scaling  Analysis  of  Deuteron
Lugar :	Seminario Depto. Física Atómica, Molecular y Nuclear, 3$^a$ planta, 218a.
Fecha :	19 de junio de 2003
Hora:	17:00 horas

Resumen

     The relativistic light-front dynamics method is applied to calculate the nucleon momentum distribution n(q) in the deuteron as a complementary test of the possibility of the method to describe simultaneously both deuteron charge form factors (that has been already shown for the recent data of the Jefferson Laboratory) and y-scaling data on n(q) in the deuteron. The study is carried out consistently with the calculation of the asymptotic scaling function of the deuteron comparing it with the empirical data, as well as with the Bethe-Salpeter result and with calculations using wave functions corresponding to various NN potentials. An approach is developed to calculate n(q) in (A,Z)- nuclei on the basis of the deuteron momentum distribution. As examples, n(q) in the He-4, C-12, and Fe-56 nuclei are calculated and good agreement with the existing y-scaling data is obtained.