What question did this study set out to answer?

The research aims to develop a specialized detector, FINUDA, for in-depth studies in nuclear physics, particularly focusing on hypernuclei.

March 5, 2026Open Access

FINUDA - A Detector for Nuclear Physics at DAFNE (out of print esaurita)

Key Points

The research aims to develop a specialized detector, FINUDA, for in-depth studies in nuclear physics, particularly focusing on hypernuclei.
Designing and constructing the FINUDA detector at DAFNE.
Focusing on spectroscopy and decay modes of Λ-hypernuclei.
Producing hypernuclei via tagged K^{-} interactions with nuclear targets.
Implementing high-performance features like 0.2% momentum resolution and dedicated triggers.
Expected observation of around 20 hypernuclei, many of which are new.
Clarification on the validity of the ΛI=1/2 rule for non-mesonic decays of hypernuclei.
Potential for measuring low K=N interactions.

Abstract

We propose the construction of a detector dedicated to Nuclear Physics studies, called FINUDA, at DAFNE, the Frascati ∅-Factory. The initial physics program is focused on the spectroscopy and decay modes of Λ-hypernuclei, which are produced following of tagged K^- in nuclear targets. The unique property of kaons at DAFNE, coupled to the expected performances of FINUDA (momentum resolution of 0. 2% FWHM, and dedicated triggers) will allow an unprecedented step forward concerning the precision of the measurements and, even more, the counting rates. At l = 10³2 cm^-2 s^-1 we expect to produce and carefully study about 20 hypernuclei, most of them new. The puzzling situation regarding the validity of the ΛI=1/2 rule for non-mesonic decays of hypernuclei will be hopefully clarified. FINUDA could also be used for measurements on low K=N interaction.

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