Nuclear Anapole Moments and the Parity-nonconserving Nuclear Interaction
نویسنده
چکیده
The anapole moment is a parity-odd and time-reversal-even electromagnetic moment. Although it was conjectured shortly after the discovery of parity nonconservation, its existence has not been confirmed until recently in heavy nuclear systems, which are known to be the suitable laboratories because of the manybody enhancement. By carefully identifying the nuclear-spin-dependent atomic parity nonconserving effect, the first clear evidence was found in cesium. In this talk, I will discuss how nuclear anapole moments are used to constrain the parity-nonconserving nuclear force, a still less well-known channel among weak interactions. Nuclear Anapole Moments and the Parity-nonconserving Nuclear Interaction
منابع مشابه
Calculation of parity-nonconserving optical rotation in iodine at 1315 nm
We examine the feasibility of a parity nonconserving (PNC) optical rotation experiment for the P3/2 → P1/2 transition of atomic iodine at 1315 nm. The calculated E1PNC to M1 amplitude ratio is R = 0.80(16) × 10−8. We show that very large PNC rotations (greater than 10 μrad) are obtained for iodine-atom column densities of ∼1022 cm−2, which can be produced by increasing the effective interaction...
متن کاملNuclear anapole moments
Nuclear anapole moments are parity-odd, time-reversal-even E1 moments of the electromagnetic current operator. Although the existence of this moment was recognized theoretically soon after the discovery of parity nonconservation ~PNC!, its experimental isolation was achieved only recently, when a new level of precision was reached in a measurement of the hyperfine dependence of atomic PNC in Cs...
متن کاملParity-violating Nucleon-nucleon Interactions: What Can We Learn from Nuclear Anapole Moments?
Knowledge about parity-violating effects both from theory and experiment is reviewed. Further information that could be obtained from measurements of nuclear anapole moments is discussed.
متن کامل2 4 Ju n 19 99 Enhancement of parity and time invariance violation in Radium atom
There are several factors which lead to a huge enhancement of parity and time invariance violating effects in the Ra atom: very close electronic levels of opposite parity, the large nuclear charge Z and the collective nature of T,P-odd nuclear moments. Experiments with Radium may be used to measure it's nuclear anapole, magnetic quadrupole and Schiff moments. Such measurements provide informati...
متن کاملAnapole moment and other constraints on the strangeness conserving Hadronic weak interaction.
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, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002