Constraints on T - Odd , P - Even Interactions from Electric Dipole Moments , Revisited
نویسندگان
چکیده
We construct the relationship between nonrenormalizable, effective , time-reversal violating (TV) parity-conserving (PC) interactions of quarks and gauge bosons and various low-energy TVPC and TV parity-violating (PV) observables. Using effective field theory methods , we delineate the scenarious under which experimental limits on permanent electric dipole moments (EDM's) of the electron, neutron, and neutral atoms as well as limits on TVPC observables provide the most stringent bounds on new TVPC interactions. Under scenarios in which parity invariance is restored at short distances, the one-loop EDM of elementary fermions generate the most severe constraints. The limits derived from the atomic EDM of 199 Hg are considerably weaker. When parity symmetry remains broken at short distances, direct TVPC search limits provide the least ambiguous bounds. The direct limits follow from TVPC interactions between two quarks.
منابع مشابه
M ar 2 00 2 Electric dipole moments of Hg , Xe , Rn , Ra , Pu , and TlF induced by the nuclear Schiff moment and limits on time - reversal violating interactions
We have calculated the atomic electric dipole moments (EDMs) induced in Hg, Xe, Rn, Ra, and Pu by their respective nuclear Schiff moments S. The results are (in units 10S(e fm)−1e cm): d(Hg) = −2.8, d(Xe) = 0.38, d(Rn) = 3.3, d(Ra) = −8.5, d(Pu) = −11. We have also calculated corrections to the parityand time-invariance-violating (P, T odd) spin-axis interaction constant in TlF. These results a...
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