Inverse β- decay of 40Ar: A new approach for observing MeV neutrinos from laboratory and astrophysical sources

Details Inverse β- decay of 40Ar: A new approach for observing MeV neutrinos from laboratory and astrophysical sources Inverse β- decay of 40Ar: A new approach for observing MeV neutrinos from laboratory and astrophysical sources

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..34.2088r&link_type=abstract

Physical Review D (Particles and Fields), Volume 34, Issue 7, 1 October 1986, pp.2088-2091

Astronomy and Astrophysics

Astrophysics

10

Radiation Detectors, Neutrino Scattering

Scientific paper

Inverse β- decay of 40Ar to its isobaric analog state in 40K should occur with a large cross section (σ) for neutrino (νe) capture above a threshold of Eth=5.885 MeV. The νe capture is distinguished by a characteristic γ-ray coincidence signature. With a σ typically larger than that for (e,νe) scattering, the new capture mode of detection should significantly enhance the sensitivity and usefulness of liquid-Ar chambers as νe spectrometers at meson factories and for astrophysical sources such as the Sun, cosmic rays, and collapsing stars.

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