U(1)' dark matter

Details U(1)' dark matter U(1)' dark matter

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..41.1067b&link_type=abstract

Physical Review D (Particles and Fields), Volume 41, Issue 4, 15 February 1990, pp.1067-1076

Physics

7

Scientific paper

We consider models with a gauged U(1)', to which is coupled a fermionic standard-model singlet ψ. If ψ's close the Universe, a Lee-Weinberg calculation gives the four-fermion coupling G' from the mass mψ. We can then calculate the germanium scattering cross section as a function of mψ. The results are nearly model independent and close to experimental limits for 10 GeV<=mψ<=100 GeV. In the region 400 GeV<=mψ<=40 TeV the scattering cross section depends on MZ', and again approaches experimental limits if MZ'<=2 TeV.

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