Amplitude analysis of the Ξc                      + → pK−π+ decay and Ξc                      + baryon polarization measurement in semileptonic beauty-hadron decays

LHCb Collaboration

doi:10.1103/gcft-fgp1

Amplitude analysis of the Ξ_c ⁺ → pK⁻π⁺ decay and Ξ_c ⁺ baryon polarization measurement in semileptonic beauty-hadron decays

LHCb Collaboration

Science Park 105
University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Syracuse University
Universidade de Santiago de Compostela
University of Bristol
Department of Physics and Astronomy
Uppsala University
Université Paris-Saclay
University of Michigan, Ann Arbor
Clermont-Auvergne University
University of Cincinnati
LNF-INFN
Fakultät Physik
University of Dortmund
Lamarr Institute for Machine Learning and Artificial Intelligence
European Organization for Nuclear Research
Department of Physics and Astronomy
University of Manchester
University of Cambridge
Sorbonne Université
Instituto de Biofisica da UFRJ
State Key Laboratory of Nuclear Physics and Technology
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
University of Chinese Academy of Sciences
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Consejo Nacional de Rectores (CONARE)
Aix-Marseille Université
Institute of Physics
ENAC-IIC-GEL
Massachusetts Institute of Technology
University of Oxford
Laboratoire de Physique des Particules
University of Heidelberg

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

1 Citation (Scopus)

Résumé

An amplitude analysis of the Ξ⁺ _c → pK⁻π⁺ decay together with a measurement of the Ξ⁺ _c polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb⁻¹. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable Ξ⁺ _c polarization is found. A large sensitivity of the Ξ⁺ _c → pK⁻π⁺ decay to the polarization is seen, making the amplitude model suitable for Ξ⁺ _c polarization measurements in other systems.

langue originale	Anglais
Numéro d'article	092003
Pages (de - à)	1-23
Nombre de pages	23
journal	Physical Review D
Volume	112
Numéro de publication	9
Les DOIs	https://doi.org/10.1103/gcft-fgp1
état	Publié - 7 nov. 2025

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10.1103/gcft-fgp1

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@article{7fdbc463224546b08cb13d7841d0529c,

title = "Amplitude analysis of the Ξc + → pK−π+ decay and Ξc + baryon polarization measurement in semileptonic beauty-hadron decays",

abstract = "An amplitude analysis of the Ξ+ c → pK−π+ decay together with a measurement of the Ξ+ c polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable Ξ+ c polarization is found. A large sensitivity of the Ξ+ c → pK−π+ decay to the polarization is seen, making the amplitude model suitable for Ξ+ c polarization measurements in other systems.",

author = "\{LHCb Collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and Beteta, \{C. Abellan\} and F. Abudin{\'e}n and T. Ackernley and Adefisoye, \{A. A.\} and B. Adeva and M. Adinolfi and P. Adlarson 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 Z. Aliouche and Cartelle, \{P. Alvarez\} 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 P. Andreola and M. Andreotti and D. Andreou and A. Anelli and D. Ao and F. Archilli and M. Argenton and Cuendis, \{S. Arguedas\} and A. Artamonov and M. Artuso and E. Aslanides and \{Da Silva\}, \{R. Ata{\'i}de\} and M. Atzeni and B. Audurier and D. Bacher and Perea, \{I. Bachiller\} and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and V. Balagura and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

note = "Publisher Copyright: {\textcopyright} 2025 CERN, for the LHCb Collaboration",

year = "2025",

month = nov,

day = "7",

doi = "10.1103/gcft-fgp1",

language = "English",

volume = "112",

pages = "1--23",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "9",

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T1 - Amplitude analysis of the Ξc + → pK−π+ decay and Ξc + baryon polarization measurement in semileptonic beauty-hadron decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Beteta, C. Abellan

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adefisoye, A. A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adlarson, P.

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 - Aliouche, Z.

AU - Cartelle, P. Alvarez

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 - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Anelli, A.

AU - Ao, D.

AU - Archilli, F.

AU - Argenton, M.

AU - Cuendis, S. Arguedas

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Da Silva, R. Ataíde

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Perea, I. Bachiller

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Balagura, V.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2025/11/7

Y1 - 2025/11/7

N2 - An amplitude analysis of the Ξ+ c → pK−π+ decay together with a measurement of the Ξ+ c polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable Ξ+ c polarization is found. A large sensitivity of the Ξ+ c → pK−π+ decay to the polarization is seen, making the amplitude model suitable for Ξ+ c polarization measurements in other systems.

AB - An amplitude analysis of the Ξ+ c → pK−π+ decay together with a measurement of the Ξ+ c polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable Ξ+ c polarization is found. A large sensitivity of the Ξ+ c → pK−π+ decay to the polarization is seen, making the amplitude model suitable for Ξ+ c polarization measurements in other systems.

UR - https://www.scopus.com/pages/publications/105025703690

U2 - 10.1103/gcft-fgp1

DO - 10.1103/gcft-fgp1

M3 - Article

AN - SCOPUS:105025703690

SN - 2470-0010

VL - 112

SP - 1

EP - 23

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092003

ER -

Amplitude analysis of the Ξc + → pK−π+ decay and Ξc + baryon polarization measurement in semileptonic beauty-hadron decays

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Contient cette citation

Amplitude analysis of the Ξ_c ⁺ → pK⁻π⁺ decay and Ξ_c ⁺ baryon polarization measurement in semileptonic beauty-hadron decays