Single-and multi-nucleon K− interactions with nuclei near threshold
Racah Institute of Physics, the Hebrew University, Jerusalem
Published online: 25 June 2018
Six recent SU(3) chiral-model EFT approaches to the K̅-nucleon interaction near threshold, constrained by K− p low-energy scattering and reaction data and by the kaonic hydrogen SIDDHARTA experiment, are used as input in kaonic atom calculations. Good agreement with the world-data on kaonic atoms is achieved with optical potentials built on the above models only when K̅N amplitudes are supplemented by a phenomenological multi-nucleon term. Comparing predictions with experimental single-nucleon absorption-at-rest fractions on nuclei, only two of the models together with their associated phenomenological term are acceptable. The information content of K−-nucleus data near threshold is discussed and the topic of deeply-bound kaonic atoms is re-visited.
© The Authors, published by EDP Sciences, 2018
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