Giant
resonances in ^{40}Ca
and ^{48}Ca,
M. R. Anders, S. Shlomo
It
is well
known that the energies of the compression modes, the isoscalar
giant monopole
resonance (ISGMR) and isoscalar giant dipole resonance (ISGDR),
are very
sensitive to the value of KNM.
Also the
energies of the isovector giant resonances, in particular, the
isovector giant
dipole resonance (IVGDR), are sensitive to the density
dependence of J.
Furthermore, information on the density dependence of J can also
be obtained by
studying the isotopic dependence of strength functions, such as
the difference
between the strength functions of 40Ca and 48Ca.
We
will
present results of fully selfconsistent Hartree Fock based
random phase
approximation calculations of the strength functions and
centroid energies ECEN
of isoscalar (T = 0) and isovector (T = 1) giant resonances of
multipolarities
L = 0  3 in ^{40}Ca and ^{48}Ca, using a wide
range of
commonly employed Skyrme type nucleonnucleon effective
interactions. We will
discuss the sensitivity of ECEN and of the differences ECEN(^{48}Ca)

ECEN(^{40}Ca) to physical quantities, such as nuclear
mater
incompressibility coefficient and symmetry energy, associated
with the
effective nucleonnucleon interactions and compare the results
with available
experimental data.