Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2001-06-07
Phys.Rev.Lett. 87 (2001) 052501
Physics
Nuclear Physics
Nuclear Theory
4 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.87.052501
Within the impulse approximation the response of a many body system at large momentum tranfer can be written in a simple and transparent form, allowing to directly relate the inclusive scattering cross section to the properties of the target ground state. Although the physics assumptions underlying impulse approximation are well defined, their implementation involves ambiguities that may cause significant differences in the calculated responses. We show that, while minimal use of the impulse approximation assumptions naturally leads to write the response in terms of the target spectral function, the widely used alternative definition in terms of the momentum distribution involves a more extended use of the same assumtpions. The difference between the responses resulting from the two procedures is illustrated by two examples.
Benhar Omar
Fabrocini Adelchi
Fantoni Stefano
No associations
LandOfFree
Ambiguities in the implementation of the impulse approximation for the response of many-fermion systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ambiguities in the implementation of the impulse approximation for the response of many-fermion systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambiguities in the implementation of the impulse approximation for the response of many-fermion systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-459488