以下のようにNT-Hongo-CNS セミナーが以下のように
7月14日と16日の日程で行われます。

--- For 1st seminar ---
Date: July 14, 2015 (Tue.) 13:00 - 15:00
Place: Room 446, Faculty of Science Building 1, Hongo, The University of
Tokyo
Lecturer: Prof. Andrea Vitturi
Institution: University of Padova / Istituto Nazionale di Fisica Nucleare
(INFN)
Title: Pair transfer reactions as a structure spectroscopic tool for the
study of pairing interactions

--- For 2nd seminar ---
Date: July 16, 2015 (Thu.) 16:30 - 18:30
Place: Room 446, Faculty of Science Building 1, Hongo, The University of
Tokyo
Lecturer: Prof. Andrea Vitturi
Institution: University of Padova / Istituto Nazionale di Fisica Nucleare
(INFN)
Title: Excitation of low-lying (PDR) and high-lying (GDR) dipole modes in
neutron-rich nuclei by nuclear and electromagnetic fields


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--- For 1st seminar ---

Abstract: I will discuss the reaction mechanism associated with two-particle
transfer reactions in a simple one-dimensional model. The reaction process
is generated by two moving wells and we follow in time the evolution of the
two-particle wave function, initially concentrated in one of the two wells.
At the end of the process one can single out the population of the different
final channels, namely elastic and inelastic, one particle and two-particle
transfer and one- and two-particle break-up (with one or two particles in
the continuum). When a residual short-ranged pairing interaction between the
two particles is included in addition to the moving potentials, one notice a
clear enhancement of the pair transfer as compared to the case of
uncorrelated particle transfer. By acting on the parameters of the model
(depths and sizes of the wells, velocity of the moving wells, distance of
closest approach) one can simulate different physical situations. In
particular one can investigate the effect of the pairing in diluted systems
by tuning the parameters to obtain the situation of weak-binding in one (or
both) of the colliding systems.
As examples of the possibility of using two-particle transfer process as a
spectroscopic tool I will finally discuss transfer processes leading to 32Mg
and 68Ni.


--- For 2nd seminar ---
Abstract: I will discuss the occurrence and the characteristics of low-lying
dipole strength in neutron rich nuclei. Microscopic results obtained within
RPA are compared with macroscopic collective models for the GDR and the PDR.
The role of nuclear excitation of these modes in processes as (alpha.alpha')
are discussed and microscopically-based formfactors are constructed to
generate predictions for the inelastic cross sections. Comparison of the
selectivity of (alpha,alpha') with respect to (gamma,gamma') is discussed
and the nature of the "pygmy" states possibly clarified.