Abstract
We calculate the lifetime of the hypertriton as a function of the separation energy in an effective field theory with and deuteron degrees of freedom. We also consider the impact of new measurements of the weak decay parameter of the . While the sensitivity of the total width to is small, the partial widths for decays into individual final states and the experimentally measured ratio show a strong dependence. For the standard value MeV, we find , which is in good agreement with past experimental studies and theoretical calculations. For the recent STAR value MeV, we obtain .
2 More- Received 24 July 2020
- Accepted 17 November 2020
DOI:https://doi.org/10.1103/PhysRevC.102.064002
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