Feeble DM-SM interaction via new scalar and vector mediators in rotating neutron stars

We investigate the possible presence of dark matter (DM) in massive and rotating neutron stars (NSs). For purpose we extend our previous work [1] to introduce a light new physics vector mediator besides scalar one order ensure feeble interaction between fermionic DM $\beta$ stable hadronic NSs. The masses fermion, mediators couplings are chosen consistent with self-interaction constraint from Bullet cluster present day relic abundance. Assuming that both contribute equally abundance, compute equation state (EoS) admixed NSs find consideration do not bring any significant change EoS static NS properties compared case where only was considered [1]. However, obtained structural conditions good agreement various constraints on them pulsars like PSR J0348+0432 J0740+6620, gravitational wave (GW170817) data recently results NICER experiments for J0030+0451 J0740+6620. also extended rotational at different angular velocities. this regard suggest secondary component GW190814 may be rapidly NS. frequency B1937+21 J1748-2446ad satisfied by results. Also, moment inertia considering slow rotation. universality relation terms normalized holds EoS.