ar X iv : n uc l - th / 9 70 40 27 v 1 1 4 A pr 1 99 7 Muon capture by oriented nuclei : new possibilities for studying induced pseudoscalar interaction

Abstract

Angular distribution of neutrinos (recoil nucleus) in muon capture for an allowed Gamov-Teller transition is considered by taking account of hyperfine effects. This angular distribution is shown to include a correlation of the form ∼ P2(cos θ), where θ is the angle between the neutrino momentum and the axis specifying the orientation of the initial mesic atom This correlation, which arises only if the initial mesic atom is aligned, proves highly sensitive to the form factor gP of induced pseudoscalar interaction. The proposed method for determinating gP may be realized for the transition 1 + → 2 from the ground state of the Li nucleus to the narrow resonance of the He nucleus in continuum, as well as in the processes like B(3) → Be(2), B(3/2) → Be(1/2−), Na(3/2) → Ne(1/2) with transitions to bound states.

Cite this paper

@inproceedings{Barabanov1997arXI, title={ar X iv : n uc l - th / 9 70 40 27 v 1 1 4 A pr 1 99 7 Muon capture by oriented nuclei : new possibilities for studying induced pseudoscalar interaction}, author={Alexander Barabanov and Yu . V . Gaponov and B. V. Danilin and N . B . Shul}, year={1997} }