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The potential of hyperon-antihyperon studies with PANDA at FAIR | | PANDA Collaboration
; | | Date: |
24 Sep 2020 | | Abstract: | The antiproton experiment PANDA at FAIR is designed to bring hadron physics
to a new level in scope, precision and accuracy. In this work, its unique
capability for studies of hyperons is outlined. We discuss ground-state
hyperons as diagnostic tools to study non-perturbative aspects of the strong
interaction, and fundamental symmetries. New simulation studies have been
carried out for two benchmark hyperon-antihyperon production channels. The
results, presented in detail in this paper, show that octet hyperon-antihyperon
pairs can be exclusively reconstructed with high efficiency and very low
background contamination. In addition, the polarisation and spin correlations
have been studied, exploiting the weak, self-analysing decay of hyperons and
antihyperons. Two independent approaches to the finite efficiency have been
applied and evaluated: one standard multidimensional efficiency correction
approach, and one efficiency independent approach. The applicability of the
latter was thoroughly evaluated for all channels, beam momenta and observables.
The standard method yields good results in all cases, and shows that spin
observables can be studied with high precision and accuracy already in the
first phase of data taking with PANDA. | | Source: | arXiv, 2009.11582 | | Services: | Forum | Review | PDF | Favorites | |
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