Collective modes and current-algebraic sum rules in nuclear medium

Details Collective modes and current-algebraic sum rules in nuclear medium Collective modes and current-algebraic sum rules in nuclear medium

1998-07-31

arxiv.org/abs/nucl-th/9807086v1

Nucl.Phys. A643 (1998) 161-188

Physics

Nuclear Physics

Nuclear Theory

latex, elsart.sty, 32 pages, 11 figures

Scientific paper

10.1016/S0375-9474(98)00544-2

In-medium sum rules following from the chiral charge algebra of QCD are reviewed, and new sum rules are derived. The new sum rules relate the I^G(J^{PC})=1^-(0^{++}) excitations (quantum numbers of a_0(980)) to the scalar and isovector densities, and are nontrivial for the isospin-asymmetric medium. We present an extensive illustration of the sum rules with help of quark matter in the Nambu-Jona--Lasinio model. Collective excitations different from the usual meson branches (spin-isospin sound modes) are shown to contribute significantly to the sum rules and to play a crucial role in the limit of vanishing current quark masses.

Affiliated with

Also associated with

No associations

Rating

Collective modes and current-algebraic sum rules in nuclear medium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Collective modes and current-algebraic sum rules in nuclear medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective modes and current-algebraic sum rules in nuclear medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-289000