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Nuclear Seminar
From
Nuclear Forces to Neutron Stars
Dr.
Achim Schwenk
Indiana University, Bloomington
Monday, May
23, 2005 4:00 p.m. NSH 124
(Refreshments served prior to seminar
in NSH 124)
Nucleons are strongly-interacting composite particles and thus
nuclear forces have a complex structure. To date, a number of
microscopically guided models have been fitted with high precision
to nucleon-nucleon scattering. I show how these different interaction
models lead to a universal low-momentum interaction, called Vk,
which unifies all microscopic nuclear forces. Corresponding low-momentum
three-nucleon interactions are perturbative and therefore tractable
in nuclei. I discuss promising results in nuclear structure and
highlight an application to pairing in neutron stars and its impact
on neutron star cooling.
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