Nuclear vorticity in isoscalar e 1 modes: Skyrme-random-phase approximation analysis

Reinhard PG, Nesterenko VO, Repko A, Kvasil J (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Physical Review C - Nuclear Physics American Physical Society

Book Volume: 89

Article Number: 024321

Journal Issue: 2

DOI: 10.1103/PhysRevC.89.024321

Abstract

Two basic concepts of nuclear vorticity, hydrodynamical (HD) and Rawenthall-Wambach (RW), are critically inspected. As a test case, we consider the interplay of irrotational and vortical motion in isoscalar electric dipole E1(T=0) modes in 208Pb, namely the toroidal and compression modes. The modes are described in a self-consistent random-phase approximation (RPA) with the Skyrme force SLy6. They are examined in terms of strength functions, transition densities, current fields, and form factors. It is shown that the RW conception (suggesting the upper component of the nuclear current as the vorticity indicator) is not robust. The HD vorticity is not easily applicable either because the definition of a velocity field is too involved in nuclear systems. Instead, the vorticity is better characterized by the toroidal strength which closely corresponds to HD treatment and is approximately decoupled from the continuity equation. © 2014 American Physical Society.

Authors with CRIS profile

Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Involved external institutions

Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ) RU Russian Federation (RU) Univerzita Karlova v Praze / Charles University in Prague CZ Czech Republic (CZ)

How to cite

APA:

Reinhard, P.-G., Nesterenko, V.O., Repko, A., & Kvasil, J. (2014). Nuclear vorticity in isoscalar e 1 modes: Skyrme-random-phase approximation analysis. Physical Review C - Nuclear Physics, 89(2). https://doi.org/10.1103/PhysRevC.89.024321

MLA:

Reinhard, Paul-Gerhard, et al. "Nuclear vorticity in isoscalar e 1 modes: Skyrme-random-phase approximation analysis." Physical Review C - Nuclear Physics 89.2 (2014).

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