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 → 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 baryon and eases inclusion of the → pK−π+ decay mode in hadronic amplitude analyses
(2023). Λc+ polarimetry using the dominant hadronic mode [journal article - articolo]. In JOURNAL OF HIGH ENERGY PHYSICS. Retrieved from https://hdl.handle.net/10446/264136
Λc+ polarimetry using the dominant hadronic mode
Lupato, A.;Redi, F.;
2023-01-01
Abstract
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 → 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 baryon and eases inclusion of the → pK−π+ decay mode in hadronic amplitude analysesFile | Dimensione del file | Formato | |
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