https://doi.org/10.1140/epja/s10050-022-00762-2
Regular Article - Theoretical Physics
A description of charmonia decays 
within the QCD factorisation framework
Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748, Garching, Germany
Received:
14
March
2022
Accepted:
1
June
2022
Published online:
26
July
2022
Decays 
into octet baryon-antibaryons pairs are studied within the QCD factorisation framework. The next-to-leading power correction to the leading-order decay amplitude is calculated for the first time. The phenomenological analysis also includes the interference with the electromagnetic decay 
. The branching fractions and the angular coefficients 
are obtained with an accuracy of about 
. The obtained results allow us to conclude that the calculated amplitudes provide a dominant contribution and therefore QCD factorisation provides a suitable basis for understanding of these decays.
© The Author(s) 2022
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