Charge-exchange quasielastic process nd→p(nn) under 0° in the frame of elastic np→np scattering to 180°
Seminars
Seminar “Relativistic nuclear dynamics”
Date and Time: Thursday, 30 January 2020, at 11:30 AM
Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics
Seminar topic: «Charge-exchange quasielastic process nd→p(nn) under 0° in the frame of elastic np→np scattering to 180°»
Speaker: R. Shindin (VBLHEP JINR)
Abstract:
It is considered the problem of spin physics related to the difference of representation of the elastic interaction between the neutron and proton. In the first case the charge-exchange reaction np→pn under the angle θ is supposed, in the second – the simple elastic scattering of np→np, when the neutron is going to oppo-site direction π-θ. The transition from one representation to another is provided by the Majorana operator. In the framework of impulse approximation it’s twice calculated the quasi-elastic charge-exchange reaction of a neutron on a deuteron. In the frame of nd→(nn)p scattering of proton to the angle θ it gives the well-known Dean formula. Using other representation nd→(nn)p as a neutron elastic scattering under the angle π-θ (together with neutron-spectator in nn-pair) the alternative formula is present-ed.