Speaker
Dr
Oleksii Ivanytskyi
(University of Salamanca)
Description
Based on recent experimental and theoretical hints on possible formation of a resonant four-neutron system we study effects of appearance of such a cluster in neutron rich baryon matter inside NSs. For this purpose we employ a relativistic mean field approach which includes nucleons, $\Delta$-baryons as well as light nuclear clusters. Our analysis demonstrates that tetraneutrons existing as the Bose-Einstein condensate can affect the equation of state of cold baryonic matter and observable characteristics of neutrons stars. Tetraneutron driven suppression of $\Delta$-baryons is another important result of our study. Influence of tetraneutrons on formation of superconducting phase is also discussed.
Authors
Dr
Oleksii Ivanytskyi
(University of Salamanca)
Prof.
Conrado Albertus Torres
(University of Salamanca)
M. Angeles Perez-Garcia
(University of Salamanca and IUFFyM)
