Energizing gamma ray bursts via $$Z^{\prime }$$ mediated neutrino heating

Abstract The pair annihilation of neutrinos $$(\nu {\overline{\nu }}\rightarrow e^+e^-)$$ ( ν ¯ → e + - ) can energize violent stellar explosions such as gamma ray bursts (GRBs). energy in this neutrino heating mechanism be further enhanced by modifying the background spacetime over that Newtonian spacetime. However, one cannot attain maximum GRB $$(\sim 10^{52}~\text {erg})$$ ∼ 10 52 erg either or Schwarzschild and Hartle–Thorne background. On other hand, using modified gravity theories Quintessence field geometries, reached. In paper, we consider extending standard model an extra $$U(1)_{{\mathrm{B-L}}}$$ U 1 B L gauge group augmenting deposition process including contributions mediated $$Z^{\prime }$$ Z ′ boson belonging to model. From observed GRB, obtain constraints on coupling different spacetimes. We find bounds quintessence are stronger than those coming from neutrino-electron scattering experiments limit small masses. Future observations with better accuracy strengthen these bounds.