Pionic Final State Interactions and the Hypertriton Lifetime

Autor: Hildenbrand, Fabian, Hammer, Hans-Werner
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: We analyze the contribution of pionic final state interactions (FSI) in the weak decay of the hypertriton. Focusing on the $^3$He channel, we find a contribution of the pionic FSI of the order of $18\%$. Assuming a fixed value for the branching ratio $R_3$ for the decay width into $^3$He over the decay width into $^3$He and $pd$ final states, we find values for the hypertriton lifetime that are consistent with the world average as well as recent measurements by the ALICE Collaboration.
Comment: 11 pages, 4 figures
Databáze: arXiv