Standard analyses of low-energy NN and nuclear parity-violating observables have been based on a pi-, rho-, and omega-exchange model capable of describing all five independent s-p partial waves. Here a parallel analysis is performed for the one-body, exchange-current, and nuclear polarization contributions to the anapole moments of 133Cs and 205Tl. The resulting constraints are not consistent, ...

Parity and time invariance violating (P, T-odd) nuclear forces produce P, T-odd nuclear moments. In turn, these moments can induce electric dipole moments (EDMs) in atoms through the mixing of electron wavefunctions of opposite parity. The nuclear EDM is screened by atomic electrons. The EDM of an atom with closed electron subshells is induced by the nuclear Schiff moment. Previously the intera...

Parity and time invariance violating (P, T-odd) nuclear forces produce P, T-odd nuclear moments. In turn, these moments can induce electric dipole moments (EDMs) in atoms through the mixing of electron wavefunctions of opposite parity. The nuclear EDM is screened by atomic electrons. The EDM of an atom with closed electron subshells is induced by the nuclear Schiff moment. Previously the intera...

Parity violating electron nucleus scattering is a clean and powerful tool for measuring the spatial distributions of neutrons in nuclei with unprecedented accuracy. Parity violation arises from the interference of electromagnetic and weak neutral amplitudes, and the Z0 of the Standard Model couples primarily to neutrons at low Q2. The data can be interpreted with as much confidence as electroma...

Let me begin by thanking Bernard Frois and the Organizing Committee for making it possible for us to enjoy both the 1998 International Nuclear Physics Conference and the lovely city of Paris. My charge today is to summarize fundamental symmetries and theory, a topic with a rich history in nuclear physics. A generation ago nuclear studies of β decay helped established the V-A nature of the weak ...

We report on a determination of the parity nonconserving (PNC) matrix element in the bound parity doublet f--y’ of “‘Tc. The experiment was carried out at the GSI, Darmstadt and LNL, Legnaro laboratories. The recoil-mass-separated radioactive beam of ‘“Tc nuclei in the yisomer, following a fusion-evaporation reaction, was polarized by the tilted-foil method and the resulting O”-180” y asymmetry...

conclusions increment in the number of parity can lead to decrease antioxidant defense mechanisms in multiparous women and their newborns. so, control of oxidative stress is considered to be beneficial in multiparous women. background parturition has been associated with free radicals, itself linked with poor pregnancy outcome. objectives this study aimed to investigate the relationship between...

We show that local parity violation due to chirality imbalance in relativistic nuclear collisions can be revealed by measuring the projection of polarization vector onto momentum, i.e. helicity, final state baryons. The proposed method does not require a coupling electromagnetic field, like Chiral Magnetic Effect. By using linear response theory, we that, presence chiral imbalance, spin 1/2 bar...

We propose a nuclear mechanism which can induce an atomic electric dipole moment (EDM). Parity and time reversal violating (P, T-odd) nuclear forces generate a mixed P, T-odd nuclear polarizability β ik (defined by an energy shift U = −β ik E i H k , E is electric field and H magnetic field). The interaction of atomic electrons with β ik produces an atomic EDM. We performed an analytical calcul...

We calculate in chiral perturbation theory the parity-violating two-pion exchange nucleon-nucleon potentials at leading one-loop order. At a distance of r = m−1 π ≃ 1.4 fm they amount to about ±16% of the parity-violating 1π-exchange potential. We evaluate also the parity-violating effects arising from 2π-exchange with excitation of virtual ∆(1232)-isobars. These come out to be relatively small...