$Λ^+_\mathrm{c}$ polarimetry using the dominant hadronic mode
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arXiv
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866909137353310208 |
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| author | LHCb collaboration |
| author_facet | LHCb collaboration |
| contents | 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 $Λ^+_\mathrm{c} \to p K^- π^+$ 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 $Λ^+_\mathrm{c}$ baryon and eases inclusion of the $Λ^+_\mathrm{c} \to p K^- π^+$ decay mode in hadronic amplitude analyses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2301_07010 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | $Λ^+_\mathrm{c}$ polarimetry using the dominant hadronic mode LHCb collaboration High Energy Physics - Experiment High Energy Physics - Phenomenology 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 $Λ^+_\mathrm{c} \to p K^- π^+$ 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 $Λ^+_\mathrm{c}$ baryon and eases inclusion of the $Λ^+_\mathrm{c} \to p K^- π^+$ decay mode in hadronic amplitude analyses. |
| title | $Λ^+_\mathrm{c}$ polarimetry using the dominant hadronic mode |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2301.07010 |