Uclear shell model is based on the shell model for electrons

peterjaybee
Messages
62
Reaction score
0
The nuclear shell model is based on the shell model for electrons, and in the electron shell model, lasing is possible under the right conditions. Does this mean that if the nuclear shell model is correct, a nucleus will be able to undergo lasing. And does anyone know if this has ever been observed/created?
 
Physics news on Phys.org


I am not much aware of it, but it seems this idea was promoted by Edward Teller in the USA in the frame of the strategic defence initiative. They made several tests and abandoned it.

Bob.
 
Last edited:
Toponium is a hadron which is the bound state of a valance top quark and a valance antitop quark. Oversimplified presentations often state that top quarks don't form hadrons, because they decay to bottom quarks extremely rapidly after they are created, leaving no time to form a hadron. And, the vast majority of the time, this is true. But, the lifetime of a top quark is only an average lifetime. Sometimes it decays faster and sometimes it decays slower. In the highly improbable case that...
I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...
Back
Top