The heavy-ion spin–orbit interaction

✍ Scribed by D.M. Brink; C.V. Sukumar

• Book ID: 104335047
• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 124 KB
• Volume: 697
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(01)01263-5

✦ Synopsis

Vector polarization in a heavy-ion collision is influenced by coupling to inelastic channels. In the adiabatic approximation the coupling can be represented by an energy-independent induced spinorbit interaction. The present paper presents a generalization which includes nonadiabatic effects as well as a contribution from the ground-state quadrupole moment. The derivation is based on secondorder perturbation theory. The approximate effective spin-orbit potential includes the effects of the coupling to an inelastic channel for all values of the interaction time τ 0 . It reduces to the adiabatic approximation when τ 0 ε/ h 1 where ε is the channel excitation energy. There is an application to the vector polarization observed in the scattering of 6 Li and 7 Li by 58 Ni.