<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">β</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> decays of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ca</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>37</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>: Implications for the efficiency of the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Cl</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>37</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> solar ν detector

A. Garca; E. G. Adelberger; P. V. Magnus; H. E. Swanson; O. Tengblad; ISOLDE Collaboration; D. M. Molz

doi:10.1103/PhysRevLett.67.3654

$β^{+}$ decays of ${}^{37}{Ca}$ : Implications for the efficiency of the ${}^{37}{Cl}$ solar ν detector

A. Garca, E. G. Adelberger, P. V. Magnus, H. E. Swanson, O. Tengblad, ISOLDE Collaboration, and D. M. Molz

Phys. Rev. Lett. 67, 3654 – Published 23 December 1991

Abstract

We studied ${}^{37}{Ca}$ $β^{+}$ decays using a mass separated ${}^{37}{Ca}$ beam and a proton telescope with 16-keV resolution. Delayed p’s were detected in coincidence with γ’s to identify p decays of ${}^{37}K$ daughter levels to excited states of ${}^{36}{Ar}$ . We observed 43 previously undetected proton groups, yielding an integrated B(GT) twice as large as that observed previously. Although our result increases the efficiency of the ${}^{37}{Cl}$ detector for counting solar ν’s by 6%, its main effect is to reduce uncertainties in this efficiency arising from discrepancies between previous ${}^{37}{Ca}$ β decay and ${}^{37}{Cl}$ (p,n) results.