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Titolo:
DIRAC-FOLDY TERM AND THE ELECTROMAGNETIC POLARIZABILITY OF THE NEUTRON
Autore:
BAWIN M; COON SA;
Indirizzi:
UNIV LIEGE,INST PHYS B5 B-4000 LIEGE 1 BELGIUM UNIV MELBOURNE,SCH PHYS,HIGH ENERGY PHYS RES CTR PARKVILLE VIC 3052 AUSTRALIA NEW MEXICO STATE UNIV,DEPT PHYS LAS CRUCES NM 88003
Titolo Testata:
Physical review. C. Nuclear physics
fascicolo: 1, volume: 55, anno: 1997,
pagine: 419 - 423
SICI:
0556-2813(1997)55:1<419:DTATEP>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRIC POLARIZABILITY; COMPTON-SCATTERING; PARTICLES; NUCLEONS; PROTON; PHASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
M. Bawin e S.A. Coon, "DIRAC-FOLDY TERM AND THE ELECTROMAGNETIC POLARIZABILITY OF THE NEUTRON", Physical review. C. Nuclear physics, 55(1), 1997, pp. 419-423

Abstract

We reconsider the Dirac-Foldy contribution mu(2)/m to the neutron electric polarizability. Using a Dirac equation approach to neutron-nucleus scattering, we review the definitions of Compton continuum (<(alpha)over bar>), classical static (alpha(E)(n)), and Schrodinger (alpha(Sch)) polarizabilities and discuss in some detail their relationship. The latter alpha(Sch) is the value of the neutron electric polarizability as obtained from an analysis using the Schrodinger equation. We findin particular alpha(Sch)=<(alpha)over bar>-mu(2)/m, where mu is the magnitude of the magnetic moment of a neutron of mass m. However, we argue that the static polarizability alpha(E)(n) is correctly defined inthe rest frame of the particle, leading to the conclusion that twice the Dirac-Foldy contribution should be added to alpha(Sch) to obtain the static polarizability alpha(E)(n).

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Documento generato il 24/09/20 alle ore 04:10:05