Figari, Rodolfo and Teta, Alessandro (2005) A one-dimensional model for ionization induced by scattering with a heavy particle. [Pubblicazione in rivista scientifica]
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|Item Type:||Pubblicazione in rivista scientifica|
|Uncontrolled Keywords:||Interazioni puntuali, Decoerenza|
|Date Deposited:||09 Nov 2005|
|Last Modified:||30 Apr 2014 19:22|
The ionization probability for a one-dimensional model atom perturbed by a moving repulsive scatterer is considered. The moving scattering centre is meant to mimic a second quantum particle crossing the region where a much lighter particle is initially bound in the atom. We compute the first three terms (of order t3/2, t2, t5/2 respectively) in the expansion for small times of the ionization probability and we deduce that the first term showing explicit dependence on the velocity of the scatterer is of order t5/2. A possible application of the model for the description of a quantum particle in a cloud chamber is also outlined.
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