Primordial black holes having gravitomagnetic monopole

A primordial black hole (PBH) is thought to be made of the regular matter or ordinary mass ($M$) only, and hence could have already been decayed due Hawking radiation if its initial were $\ensuremath{\lesssim}5\ifmmode\times\else\texttimes\fi{}{10}^{11}\text{ }\text{ }\mathrm{kg}$. Here, we study role a gravitomagnetic monopole for evaporation PBHs, propose that lower-energy PBHs (equivalent $M\ensuremath{\ll}5\ifmmode\times\else\texttimes\fi{}{10}^{11}\text{ }\mathrm{kg}$) still exist in our present Universe, it has monopole. If PBH was initially both monopole, decay away radiation. The remnant might not entirely decay, which found as form `pseudomass-energy'. with $M\ensuremath{\gtrsim}5\ifmmode\times\else\texttimes\fi{}{10}^{11}\text{ }\mathrm{kg}$ detected, one may able conclude but, plausible detection relatively low-energy $2.176\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}\text{ }\mathrm{kg}<M\ensuremath{\lesssim}5\ifmmode\times\else\texttimes\fi{}{10}^{11}\text{ future imply existence PBH, contain mass.