Measurement of the charm mixing parameter yCP- yCPKπ using two-body D0 meson decays

(LHCb Collaboration)

doi:10.1103/PhysRevD.105.092013

Measurement of the charm mixing parameter yCP- yCPKπ using two-body D0 meson decays

(LHCb Collaboration)

Science Park 105
University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Clermont-Auvergne University
Sorbonne Université
University of Michigan, Ann Arbor
Sezione INFN di Milano
University of Cincinnati
Fakultät Physik
University of Dortmund
European Organization for Nuclear Research
SUPA
University of Glasgow
University of Barcelona
Department of Physics and Astronomy
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
University of Cambridge
Instituto de Biofisica da UFRJ
Université Paris-Saclay
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
University of Chinese Academy of Sciences
University of Heidelberg
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Aix-Marseille Université
Ip Paris
Institute of Physics
ENAC-IIC-GEL
Centro Brasileiro de Pesquisas Fisicas
University of Florence
Imperial College London

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

18 Citations (Scopus)

Résumé

A measurement of the ratios of the effective decay widths of D0→π-π+ and D0→K-K+ decays over that of D0→K-π+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb-1. These observables give access to the charm mixing parameters yCPππ-yCPKπ and yCPKK-yCPKπ, and are measured as yCPππ-yCPKπ=(6.57±0.53±0.16)×10-3, yCPKK-yCPKπ=(7.08±0.30±0.14)×10-3, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is yCP-yCPKπ=(6.96±0.26±0.13)×10-3, which is four times more precise than the previous world average.

langue originale	Anglais
Numéro d'article	092013
journal	Physical Review D
Volume	105
Numéro de publication	9
Les DOIs	https://doi.org/10.1103/PhysRevD.105.092013
état	Publié - 1 mai 2022

Accès au document

10.1103/PhysRevD.105.092013

Contient cette citation

@article{aac3e5c00e6d4e4abaf37a7c4c769b9d,

title = "Measurement of the charm mixing parameter yCP- yCPKπ using two-body D0 meson decays",

abstract = "A measurement of the ratios of the effective decay widths of D0→π-π+ and D0→K-K+ decays over that of D0→K-π+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb-1. These observables give access to the charm mixing parameters yCPππ-yCPKπ and yCPKK-yCPKπ, and are measured as yCPππ-yCPKπ=(6.57±0.53±0.16){\texttimes}10-3, yCPKK-yCPKπ=(7.08±0.30±0.14){\texttimes}10-3, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is yCP-yCPKπ=(6.96±0.26±0.13){\texttimes}10-3, which is four times more precise than the previous world average.",

author = "\{(LHCb Collaboration)\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abell{\'a}n Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and G. Alkhazov and \{Alvarez Cartelle\}, P. 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. Ao and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista De Souza Leite\}, J. and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and W. Barter and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 CERN.",

year = "2022",

month = may,

day = "1",

doi = "10.1103/PhysRevD.105.092013",

language = "English",

volume = "105",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Measurement of the charm mixing parameter yCP- yCPKπ using two-body D0 meson decays

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellán Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

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 - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista De Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2022/5/1

Y1 - 2022/5/1

N2 - A measurement of the ratios of the effective decay widths of D0→π-π+ and D0→K-K+ decays over that of D0→K-π+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb-1. These observables give access to the charm mixing parameters yCPππ-yCPKπ and yCPKK-yCPKπ, and are measured as yCPππ-yCPKπ=(6.57±0.53±0.16)×10-3, yCPKK-yCPKπ=(7.08±0.30±0.14)×10-3, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is yCP-yCPKπ=(6.96±0.26±0.13)×10-3, which is four times more precise than the previous world average.

AB - A measurement of the ratios of the effective decay widths of D0→π-π+ and D0→K-K+ decays over that of D0→K-π+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb-1. These observables give access to the charm mixing parameters yCPππ-yCPKπ and yCPKK-yCPKπ, and are measured as yCPππ-yCPKπ=(6.57±0.53±0.16)×10-3, yCPKK-yCPKπ=(7.08±0.30±0.14)×10-3, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is yCP-yCPKπ=(6.96±0.26±0.13)×10-3, which is four times more precise than the previous world average.

U2 - 10.1103/PhysRevD.105.092013

DO - 10.1103/PhysRevD.105.092013

M3 - Article

AN - SCOPUS:85131700433

SN - 2470-0010

VL - 105

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092013

ER -

Measurement of the charm mixing parameter yCP- yCPKπ using two-body D0 meson decays

Résumé

Accès au document

Empreinte digitale

Contient cette citation