Artículos de revistas
Additional time-dependent phase in the flavor-conversion formulas
Registro en:
Europhysics Letters. Edp Sciences S A, v. 73, n. 2, n. 157, n. 163, 2006.
0295-5075
WOS:000234447700001
10.1209/epl/i2005-10376-7
Autor
Bernardini, AE
Institución
Resumen
In the framework of intermediate wave-packets for treating flavor oscillations, we quantify the modi. cations which appear when we assume a strictly peaked momentum distribution and consider the second-order corrections in a power series expansion of the energy. By following a sequence of analytic approximations, we point out that an extra time-dependent phase is merely the residue of second-order corrections. Such phase effects are usually ignored in the relativistic wave-packet treatment, but they do not vanish non-relativistically and can introduce some small modi. cations to the oscillation pattern even in the ultra-relativistic limit. 73 2 157 163