Construction of spectral functions for medium-mass nuclei

This article is aimed at improving the description of lepton-nucleus interactions in the sub-GeV energy range. Approximate spectral functions for oxygen, calcium, and argon are constructed and used to obtain the electron cross sections in a given scattering angle. Comparison with a sample of availab...

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Veröffentlicht in:Physical review. C, Nuclear physics Nuclear physics, 2008-04, Vol.77 (4), Article 044311
Hauptverfasser: Ankowski, Artur M., Sobczyk, Jan T.
Format: Artikel
Sprache:eng
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Zusammenfassung:This article is aimed at improving the description of lepton-nucleus interactions in the sub-GeV energy range. Approximate spectral functions for oxygen, calcium, and argon are constructed and used to obtain the electron cross sections in a given scattering angle. Comparison with a sample of available experimental data shows satisfactory agreement. Discrepancy between the presented model and the systematic computations available for oxygen [O. Benhar et al., Phys. Rev. D 72, 053005 (2005)] is also found to be very small. Analysis of appropriate kinematical regions leads to the conclusion that the obtained argon spectral function should describe well neutrino scattering in the 800-MeV energy region. Several approximations used in the model are critically reviewed. All the details needed to implement the presented approach in Monte Carlo simulations are given.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.77.044311