Speaker
Mohsen Bigdeli
(University of Zanjan)
Description
Magnetars and pulsars are neutron stars with strong surface magnetic field which is about 1013 Gauss in case of pulsars [1] and 1015 Gauss in magnetars [2]. According to scalar virial theorem [3] the strength of magnetic field at the core of neutron stars exceed 1018 G. Such strong magnetic fields can change the internal structure of nucleons and reduce its mass [4]. Here, we have studied the influence of neutron mass reduction due to magnetic field on the equation of state of neutron matter. Here, we have used the lowest order constrained variational (LOCV) formalism and applied modern nucleon-nucleon potentials to determine the equation of state of the neutron matter. The LOCV method is a powerful tool for determination of the properties of the nucleonic matter [5].
Reference
[1] F. Pacini, Nature (London) 216 (1967) 567.
[2] C. Thompson and R. Duncan, Astrophy. J 473, (1996) 322.
[3] D. Lai and S. Shapiro, Astrophys. J. 383, 745 (1991).
[4] M.A. Andreichikov, B.O. Kerbikov, V.D. Orlovsky, Yu.A. Simonov Phys. Rev. D 89, 074033 (2014).
[5] M. Bigdeli, Phys. Rev. C 82 (2010) 054312; M. Bigdeli, submitted to Phys. Lett. B
Author
Mohsen Bigdeli
(University of Zanjan)
