The Weak $ΛΛK^0$ Interaction

Details The Weak $ΛΛK^0$ Interaction The Weak $ΛΛK^0$ Interaction

1997-08-27

arxiv.org/abs/nucl-th/9708049v1

Phys.Rev.C57:1478-1484,1998

Physics

Nuclear Physics

Nuclear Theory

13 pages, 5 figures, latex

Scientific paper

10.1103/PhysRevC.57.1478

We calculate the leading contribution to the weak $\Lambda \Lambda K$ coupling in heavy baryon chiral perturbation theory, including the SU(3) breaking terms arising at one-loop. This coupling gives the leading one-boson exchange amplitude for the process $\Lambda\Lambda\to\Lambda n$ and is an important component in understanding the decay of $\Lambda\Lambda$-hypernuclei. We find the S-wave and P-wave amplitudes to be stable under one-loop corrections, but the associated errors become large. We discuss the theoretical errors and potential effects of higher order terms.

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