We have measured the polarization of ∧5He produced by the (π+, K+) reaction for the first time by observing the asymmetric emission of its weak decay pions. The large asymmetry parameter of the mesonic decay, which is unique to ∧5He, made the measurement possible. The measurement is consistent with the theoretical prediction by which the mechanism of the hypernuclear polarization was clarified. This technique will open a new field to the spectroscopic study of hypernuclei.
|Number of pages||4|
|Journal||Physical Review Letters|
|Publication status||Published - 1998|
ASJC Scopus subject areas
- Physics and Astronomy(all)