Positron-Neutrino Correlation in the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mn>0</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow><mo>→</mo><mrow><msup><mrow><mn>0</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> Decay of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi></mi></mrow><mrow><mn>32</mn></mrow></msup></mrow><mi>Ar</mi></math></span>

E. G. Adelberger; C. Ortiz; A. García; H. E. Swanson; M. Beck; O. Tengblad; M. J. G. Borge; I. Martel; H. Bichsel; the ISOLDE Collaboration

doi:10.1103/PhysRevLett.83.1299

Positron-Neutrino Correlation in the $0^{+} \to 0^{+}$ Decay of $^{32} Ar$

E. G. Adelberger, C. Ortiz, A. García, H. E. Swanson, M. Beck, O. Tengblad, M. J. G. Borge, I. Martel, H. Bichsel, and the ISOLDE Collaboration

Phys. Rev. Lett. 83, 1299 – Published 16 August 1999; Erratum Phys. Rev. Lett. 83, 3101 (1999)

Abstract

The positron-neutrino correlation in the $0^{+} \to 0^{+}$ $β$ decay of $^{32} Ar$ was measured at ISOLDE by analyzing the effect of lepton recoil on the shape of the narrow proton group following the superallowed decay. Our result is consistent with the standard model prediction. For vanishing Fierz interference we find $a = 0.9989 \pm 0.0052 \pm 0.0039$ , which yields improved constraints on scalar weak interactions.

Received 24 February 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.1299

Erratum

Positron-Neutrino Correlation in the $0^{+} \to 0^{+}$ Decay of ${}^{32}A r$ [Phys. Rev. Lett. 83, 1299 (1999)]

E. G. Adelberger, C. Ortiz, A. García, H. E. Swanson, M. Beck, O. Tengblad, M. J. G. Borge, I. Martel, H. Bichsel, and the ISOLDE Collaboration

Phys. Rev. Lett. 83, 3101 (1999)

Authors & Affiliations

E. G. Adelberger¹, C. Ortiz², A. García², H. E. Swanson¹, M. Beck¹, O. Tengblad³, M. J. G. Borge³, I. Martel⁴, H. Bichsel¹, and the ISOLDE Collaboration⁴

¹Department of Physics, University of Washington, Seattle, Washington 98195-1560
²Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556
³Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
⁴EP Division, CERN, Geneva, Switzerland CH-1211

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Vol. 83, Iss. 7 — 16 August 1999

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Physical Review Letters

Positron-Neutrino Correlation in the 0+→0+ Decay of 32Ar

E. G. Adelberger, C. Ortiz, A. García, H. E. Swanson, M. Beck, O. Tengblad, M. J. G. Borge, I. Martel, H. Bichsel, and the ISOLDE Collaboration

Phys. Rev. Lett. 83, 1299 – Published 16 August 1999; Erratum Phys. Rev. Lett. 83, 3101 (1999)

Abstract

Erratum

Positron-Neutrino Correlation in the 0+→0+ Decay of A32r [Phys. Rev. Lett. 83, 1299 (1999)]

E. G. Adelberger, C. Ortiz, A. García, H. E. Swanson, M. Beck, O. Tengblad, M. J. G. Borge, I. Martel, H. Bichsel, and the ISOLDE Collaboration

Phys. Rev. Lett. 83, 3101 (1999)

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Positron-Neutrino Correlation in the $0^{+} \to 0^{+}$ Decay of $^{32} Ar$

Positron-Neutrino Correlation in the $0^{+} \to 0^{+}$ Decay of ${}^{32}A r$ [Phys. Rev. Lett. 83, 1299 (1999)]