Λc+ polarimetry using the dominant hadronic mode

The LHCb collaboration

doi:10.1007/JHEP07(2023)228

Λc+ polarimetry using the dominant hadronic mode

The LHCb collaboration

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Universidade de Santiago de Compostela
University of Bristol
Uppsala University
Clermont-Auvergne University
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University of Glasgow
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Aix-Marseille Université
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Laboratoire de Physique des Particules
University of Heidelberg
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University of Florence
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Universitat Ramon LLull - CSIC
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Wuhan University
Imperial College London
Maastricht University
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

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.].

langue originale	Anglais
Numéro d'article	228
journal	Journal of High Energy Physics
Volume	2023
Numéro de publication	7
Les DOIs	https://doi.org/10.1007/JHEP07(2023)228
état	Publié - 1 août 2023

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10.1007/JHEP07(2023)228

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@article{044844cf6aff4cd2bad2617220e7673d,

title = "Λc+ polarimetry using the dominant hadronic mode",

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 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.].",

keywords = "Charm Physics, Flavour Physics, Hadron-Hadron Scattering, Polarization",

author = "\{The LHCb collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and \{Bachiller Perea\}, I. and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista de Souza Leite\}, J. and M. Barbetti and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = aug,

day = "1",

doi = "10.1007/JHEP07(2023)228",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Λc+ polarimetry using the dominant hadronic mode

AU - The LHCb collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachiller Perea, I.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista de Souza Leite, J.

AU - Barbetti, M.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2023/8/1

Y1 - 2023/8/1

N2 - 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.].

AB - 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.].

KW - Charm Physics

KW - Flavour Physics

KW - Hadron-Hadron Scattering

KW - Polarization

UR - https://www.scopus.com/pages/publications/85167587596

U2 - 10.1007/JHEP07(2023)228

DO - 10.1007/JHEP07(2023)228

M3 - Article

AN - SCOPUS:85167587596

SN - 1126-6708

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 228

ER -

Λc+ polarimetry using the dominant hadronic mode

Résumé

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