https://doi.org/10.1140/epjp/i2013-13064-6
Regular Article
Pairing effect on spectral statistics of even and odd mass nuclei
1
Department of Nuclear Physics, University of Tabriz, 51664, Tabriz, Iran
2
Department of Theoretical Physics and Astrophysics, University of Tabriz, 51664, Tabriz, Iran
3
Research Institute for Fundamental Sciences, 51664, Tabriz, Iran
* e-mail: h-sabri@tabrizu.ac.ir
Received:
18
March
2013
Revised:
9
May
2013
Accepted:
27
May
2013
Published online:
24
June
2013
The interplay of pairing is explored for the spectral statistics of nuclear systems with emphasis on the nearest neighbor spacing distributions by employing the kernel density and maximum-likelihood estimation techniques. Different sequences prepared by all the available empirical data for low-lying energy levels of even- and odd-mass nuclei in the 
mass region. A deviation to more regular dynamics is apparent for even-mass nuclei in comparison to the odd-mass ones, and there are suggestions of the effects due to unclosed proton shells on more chaotic dynamics.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2013
