A cosmological neutrino sea model is used to place bounds on torsion and Lorentz violation and primordial magnetic fields. When one uses gravitational newtonian constant $G_{ N}$ we obtain more stringent bounds than the ones obtained by Kostelecky and Russel [PRL,(2001)] which is of the order of $T^{ 0}\le{ 10^{ -31}GeV}$ axial torsion, which is $T^{ 0}\le{ 10^{ -38}GeV}$. When the strong gravity f-meson dominance gravitational constant $G_{ f}\sim{ 10^{ 38}G_{ N}}$ the torsion bound LV is too high of the order of $10^{ -2}GeV$. Primordial magnetic field bounds also based on neutrino oscillation is founded to be $B_{ \nu}\sim{ 10^{ 21}G}$ which is compatible with Enqvist et al [PRL.(1998)]. Earlier the author [MPLA (2011)]has found a bound for torsion of the order $10^{ -37}GeV$ from CP ${ \alpha}^{ 2}-dynamos$ which still not as stringent as the present limit of this paper. By computing the ratio $r=\frac{ { \rho}_{ B}}{ { \rho}_{ \gamma}}\sim{ 10^{ -37}}$ in the case of Planck temperatures, shows that r maybe too low to need dynamo action amplify magnetic fields. The most important result of the paper is that making use of cosmological neutrinos in early universe a detectable torsion value of $T\sim{ 10MeV}$ in present level of energies of LHC is obtained.
Categories: physics.gen-ph