Λ+c polarimetry using the dominant hadronic mode



Aaij, R, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C
et al (show 1052 more authors) (2023) Λ+c polarimetry using the dominant hadronic mode. Journal of High Energy Physics, 2023 (7).

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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 Λ�+ → 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 Λ�+ baryon and eases inclusion of the Λ�+ → pK−π+ decay mode in hadronic amplitude analyses.

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 18 Sep 2023 08:05
Last Modified: 30 Nov 2023 15:23
DOI: 10.1007/jhep07(2023)228
Open Access URL: https://link.springer.com/content/pdf/10.1007/JHEP...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3172811