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A Precise Determination of the Pion-Nuclear Coupling Parameter from Weak Processes in ^3He | | Nimai C. Mukhopadhyay
; K. Junker
; | | Date: |
13 Dec 1996 | | Journal: | Phys.Rev.Lett. 77 (1996) 5342-5345 | | Subject: | nucl-th | | Affiliation: | 1 and 2) and K. Junker ( RPI, PSI | | Abstract: | We utilize precise weak interaction experiments on atomic muon capture and beta decay in the A = 3 nuclei, and take into account the effects of nuclear "anomalous thresholds" to extract the pseudoscalar pi-^3He-^3H coupling parameter, G^{eff}(m_pi^2) = 45.8+- 2.4. This is an order of magnitude improvement in precision over that from the use of pion-nuclear scattering data and dispersion relations. | | Source: | arXiv, nucl-th/9612035 | | Services: | Forum | Review | PDF | Favorites | |
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