Λc+ polarimetry using the dominant hadronic mode

The LHCb collaboration

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Resum

The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the Λc+ → pK π + decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. The obtained representation can facilitate polarisation measurements of the Λc+ baryon and eases inclusion of the Λc+ → pK π + decay mode in hadronic amplitude analyses. [Figure not available: see fulltext.].

Idioma originalAnglès
Número d’article228
RevistaJournal of High Energy Physics
Volum2023
Número7
DOIs
Estat de la publicacióPublicada - d’ag. 2023

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