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Title: Constraints on [ital T]-odd and [ital P]-even hadronic interactions from nucleon, nuclear, and atomic electric dipole moments

Journal Article · · Physical Review, D (Particles Fields); (United States)
;  [1];  [2]
  1. Institute for Nuclear Theory, NK-12 and Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)
  2. Continuous Electron Beam Accelerator Facility Theory Group, MS 12H, Newport News, Virginia 23606 (United States) Department of Physics, Old Dominion University, Norfolk, Virigina 23529 (United States)

We deduce constraints on time-reversal-noninvariant (TRNI), parity-conserving (PC) hadronic interactions from nucleon, nuclear, and atomic electric dipole moment (EDM) limits. Such interactions generate EDM's through weak radiative corrections. We consider long-range mechanisms, i.e., those mediated by meson exchanges in contrast with short-range two-loop mechanisms. We find that the ratio of typical TRNI, PC nuclear matrix elements to those of the strong interaction are [approx lt]10[sup [minus]5], a limit about 2 orders of magntiude more stringent than those from direct detailed balance studies of such interactions. This corresponds to a bound of [vert bar][ital [bar g]][sub [rho]][vert bar][approx lt]10[sup [minus]3], where [ital [bar g]][sub [rho]] is a TRNI PC [rho][ital NN] coupling.

OSTI ID:
7142524
Journal Information:
Physical Review, D (Particles Fields); (United States), Vol. 50:5; ISSN 0556-2821
Country of Publication:
United States
Language:
English