THE NUCLEAR FORCE AND THE ELECTROMAGNETIC CURRENT OPERATOR

作者: D.O. RISKA

DOI: 10.1016/B978-0-444-86979-1.50042-9

关键词: PhysicsIsospinIsovectorMesonOperator (computer programming)Particle physicsExchange interactionNuclear forcePionQuantum electrodynamicsObservable

摘要: Publisher Summary This chapter highlights the nuclear force and electromagnetic current operator. It discusses relation between operator nucleon–nucleon interaction. The describes assumptions needed for construction of two-body directly from isospin- velocity-dependent components interaction potential observable consequences exchange constructed operators that are associated with give rise to large corrections in few body-systems, their effects nuclei usually relatively small. isovector tensor small but non-negligible contributions magnetic form factors throughout periodic system already being at intermediate values momentum transfer improve agreement empirical values. In a dense medium, meson will be modified both by self-energy propagators describe propagating medium reduction meson–nucleon coupling strength caused quasiparticle screening nucleons. There is tendency cancellation these two effects, which most notable case pion exchange. polarization may used as an—albeit only qualitative—justification common practice employing bare models calculation properties nuclei.

参考文章(17)
K. Holinde, R. Machleidt, OBEP and eikonal form factor Nuclear Physics A. ,vol. 256, pp. 479- 496 ,(1976) , 10.1016/0375-9474(76)90385-7
N. Anantaraman, B. A. Brown, G. M. Crawley, A. Galonsky, C. Djalali, N. Marty, M. Morlet, A. Willis, J. -C. Jourdain, B. H. Wildenthal, Observation of quenching in isoscalar and isovector 0/sup +/. -->. 1/sup +/ transitions in /sup 28/Si(p,p') Physical Review Letters. ,vol. 52, pp. 1409- 1412 ,(1984) , 10.1103/PHYSREVLETT.52.1409
N. Austern, R. G. Sachs, Interaction Effects on Radiative Transitions in Nuclei Physical Review. ,vol. 81, pp. 710- 716 ,(1951) , 10.1103/PHYSREV.81.710
Bertrand Desplanques, Jean-François Mathiot, The magnetic form factor of nuclei at high momentum transfers Physics Letters B. ,vol. 116, pp. 82- 86 ,(1982) , 10.1016/0370-2693(82)90980-7
S. Auffret, J. M. Cavedon, J. C. Clemens, B. Frois, D. Goutte, M. Huet, Ph. Leconte, J. Martino, Y. Mizuno, X. -H. Phan, S. Platchkov, I. Sick, Magnetic form factor of the deuteron. Physical Review Letters. ,vol. 54, pp. 649- 652 ,(1985) , 10.1103/PHYSREVLETT.54.649
D O Riska, M Poppius, Velocity Dependence and Nuclear Magnetic Structure Physica Scripta. ,vol. 32, pp. 581- 591 ,(1985) , 10.1088/0031-8949/32/6/004
Akito Arima, Nuclear magnetic properties and gamow-teller transitions Progress in Particle and Nuclear Physics. ,vol. 11, pp. 53- 89 ,(1984) , 10.1016/0146-6410(84)90012-7
J. Adam, E. Truhlík, Isovector electromagnetic exchange currents in the chiral approach Czechoslovak Journal of Physics. ,vol. 34, pp. 1157- 1178 ,(1984) , 10.1007/BF01590064
Dan Olof Riska, Electromagnetic meson exchange currents Progress in Particle and Nuclear Physics. ,vol. 11, pp. 199- 243 ,(1984) , 10.1016/0146-6410(84)90017-6
H. Toki, W. Weise, On the mass dependent quenching of magnetic transitions in nuclei Physics Letters B. ,vol. 97, pp. 12- 16 ,(1980) , 10.1016/0370-2693(80)90535-3