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Title: | Positron-neutrino correlation in the O+ -> O+ decay of Ar-32 |
Authors: | Adelberger, E. G.; Ortiz, C.; García, A.; Swanson, H. E.; Beck, M.; Tengblad, Olof ![]() ![]() |
Keywords: | [PACS] Angular distribution and correlation measurements [PACS] Leptonic, semileptonic, and radiative decays [PACS] Weak-interaction and lepton (including neutrino) aspects [PACS] Nuclear tests of fundamental interactions and symmetries |
Issue Date: | 16-Aug-1999 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters 83(7): 1299-1302 (1999) |
Abstract: | The positron-neutrino correlation in the O+ -> O+ decay of Ar-32 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 ± 0.0052 ± 0.0039, which yields improved constraints on scalar weak interactions. |
Description: | 4 pages, 1 table, 4 figures.-- PACS nrs.: 23.20.En, 13.30.Ce, 23.40.Bw, 24.80.+y.-- Erratum to this paper in: Phys. Rev. Lett. 83(15): 3101-3101 (1999). Erratum available at: http://digital.csic.es/handle/10261/12896 |
Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevLett.83.1299 |
URI: | http://hdl.handle.net/10261/9922 |
DOI: | 10.1103/PhysRevLett.83.1299 |
ISSN: | 0031-9007 |
Appears in Collections: | (CFMAC-IEM) Artículos |
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PhysRevLett 83 (1999)1299.pdf | Articulo principal | 126,89 kB | Adobe PDF | ![]() View/Open |
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