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Total branching ratio of the K-two-nucleon absorption in 12C
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Abstract
This work is a critical re-analysis of the results obtained by the AMADEUS
collaboration, concerning the measurement of the K− multi-nucleon absorption
reactions, on a 12C target, in the Λp final state. We show that a good estimate of
the K− two-nucleon absorption total branching ratio can be extracted, given that
the measured final state interactions and conversion reactions contain information on
almost all the remaining hyperon-nucleon final state combinations.
The total branching ratio of the K− two-nucleon absorption in Carbon is found to be (16±3(stat.)+4−5(syst.))%, which is in agreement with recent theoretical predictions.
The missing contribution from those few channels for which a Λp pair can not be detected in the final state of the interaction is also estimated
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GRANDE, Raffaele del, et al. Total branching ratio of the K-two-nucleon absorption in 12C. Physica Scripta. 2020. Vol. 95, num. 8. ISSN 0031-8949. [consulted: 15 of June of 2026]. Available at: https://hdl.handle.net/2445/219353