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Particle-number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle

Simenel, Cédric

Physical review letters, 2011-03, Vol.106 (11), p.112502-112502, Article 112502 [Revista revisada por pares]

United States: American Physical Society

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Particle-number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle
Autor: Simenel, Cédric
Materias: ALKALINE EARTH ISOTOPES ; APPROXIMATIONS ; BARYONS ; CALCIUM 40 ; CALCIUM ISOTOPES ; CALCULATION METHODS ; CORRELATIONS ; DEEP INELASTIC SCATTERING ; DIRECT REACTIONS ; ELEMENTARY PARTICLES ; EVEN-EVEN NUCLEI ; FERMIONS ; FLUCTUATIONS ; HADRONS ; HARTREE-FOCK METHOD ; INELASTIC SCATTERING ; INTERACTIONS ; ISOTOPES ; LEPTON-BARYON INTERACTIONS ; LEPTON-HADRON INTERACTIONS ; LEPTON-NUCLEON INTERACTIONS ; LIGHT NUCLEI ; MANY-BODY PROBLEM ; MEAN-FIELD THEORY ; NEUTRONS ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEAR REACTIONS ; Nuclear Theory ; NUCLEI ; NUCLEONS ; PARTICLE INTERACTIONS ; Physics ; PROTONS ; SCATTERING ; STABLE ISOTOPES ; TIME DEPENDENCE ; TRANSFER REACTIONS ; VARIATIONAL METHODS ; VARIATIONS
Es parte de: Physical review letters, 2011-03, Vol.106 (11), p.112502-112502, Article 112502
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descripción: The Balian-Vénéroni (BV) variational principle, which optimizes the evolution of the state according to the relevant observable, is used at the mean-field level to determine the particle-number fluctuations in fragments of many-body systems. For fermions, the numerical evaluation of such fluctuations requires the use of a time-dependent Hartree-Fock (TDHF) code. Proton, neutron, and total nucleon number fluctuations in fragments produced in collisions of two (40)Ca are computed well above the fusion barrier. For deep-inelastic collisions, the fluctuations calculated from the BV variational principle are much larger than standard TDHF results, and closer to experimental fluctuations. Correlations between proton and neutron numbers are determined. These correlations are shown to be larger with exotic systems where charge equilibration occurs.
Editor: United States: American Physical Society
Idioma: Inglés

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Particle-number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle

Simenel, Cédric

United States: American Physical Society

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