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EFT for electroweak processes of light nuclei | | Tae-Sun Park
; | | Date: |
8 Sep 2003 | | Journal: | Nucl.Phys. A737 (2004) 190-194 | | Subject: | nucl-th | | Abstract: | Recently we succeeded to make a reliable EFT prediction in a totally parameter-free manner for the $S$ factors for the solar $pp$ and $hep$ processes, $p+p o d + e^+ +
u_e$ and $He3+p o He4 + e^+ +
u_e$. The strategy used in there is to embed a highly sophisticated standard nuclear physics approach (SNPA) exploiting realistic potentials into an EFT framework, that we refer to as EFT*. Up to next-next-to-leading order in chiral expansion, it turnes out that there is effectively only one counter-term relevant to this process, the coefficient of which -- ($hat d^R$) -- has been renormalized to reproduce the experimental value of the tritium-beta decay. Our study has also led to {em very} accurate EFT calculations on two-body weak processes that also receive contributions from the $hat d^R$ term, $mu-d$ capture rate, and $
u-d$ scattering cross section. | | Source: | arXiv, nucl-th/0309013 | | Services: | Forum | Review | PDF | Favorites | |
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