First Observation of D0-D-0 Oscillations in D0 →k+π-π+π- Decays and Measurement of the Associated Coherence Parameters

(LHCb Collaboration)

doi:10.1103/PhysRevLett.116.241801

First Observation of D0-D-0 Oscillations in D0 →k+π-π+π- Decays and Measurement of the Associated Coherence Parameters

(LHCb Collaboration)

European Organization for Nuclear Research
University of Zurich
University Santiago de Compostela
University of Bristol
University of Liverpool
Clermont-Auvergne University
Aix Marseille Université
University of Dortmund
University of Glasgow
Science Park 105
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
University of Cincinnati
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Tsinghua University
ENAC-IIC-GEL
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
University of Manchester
Max-Planck-Institut für Kernphysik
University of Heidelberg
Kurchatov Institute
Syracuse University
Sezione di Roma
Università degli Studi della Basilicata
University of Warwick
University of Barcelona
Pontifícia Universidade Católica do Rio de Janeiro
National Centre for Nuclear Research (NCBJ)
Université Savoie Mont Blanc
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Centro Brasileiro de Pesquisas Fisicas
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Institute for Theoretical and Experimental Physics
Universités Paris VI and VII
LNF-INFN
Moscow State University
INFN Sezione di Bologna
University of Birmingham
University of Modena and Reggio Emilia
Novosibirsk State University
Sezione INFN di Cagliari
Yandex School of Data Analysis
Universitat Ramon LLull - CSIC
University of Bologna
University of Rome “Tor Vergata”
Sezione di Genova
University of Genoa
University of Edinburgh
Scuola Normale Superiore di Pisa
University of Oxford
Institute for Nuclear Physics
University of Cambridge
Universitá di Cagliari
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Padova
Sezione INFN di Milano
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
Agh University of Science and Technology Faculty of Computer Science
Universidade Federal Do Triângulo Mineiro (UFTM)
Universität Rostock
RWTH Aachen University
Massachusetts Institute of Technology
Vrije Universiteit Amsterdam
Kurchatov Institute
University of Valencia
University College Dublin
University of Milano
Universidad Nacional de Colombia
Hanoi University of Science
Institute of Nuclear Research, National Academy of Sciences in Ukraine
ICS/University of Groningen
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
University of Rome
University of Pisa
University of Urbino Carlo Bo
Central China Normal University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences

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

Résumé

Charm meson oscillations are observed in a time-dependent analysis of the ratio of D0→K+π-π+π- to D0→K-π+π-π+ decay rates, using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes rDK3π and the product of the coherence factor RDK3π and a charm mixing parameter yK3π′. The constraints measured are rDK3π=(5.67±0.12)×10-2, which is the most precise determination to date, and RDK3πyK3π′=(0.3±1.8)×10-3, which provides useful input for determinations of the CP-violating phase γ in B±→DK±, D→Kπ±ππ± decays. The analysis also gives the most precise measurement of the D0→K+π-π+π- branching fraction, and the first observation of D0-D-0 oscillations in this decay mode, with a significance of 8.2 standard deviations.

langue originale	Anglais
Numéro d'article	241801
journal	Physical Review Letters
Volume	116
Numéro de publication	24
Les DOIs	https://doi.org/10.1103/PhysRevLett.116.241801
état	Publié - 17 juin 2016

Accès au document

10.1103/PhysRevLett.116.241801

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{81839a9c647e473b9916e00e5d0c635d,

title = "First Observation of D0-D-0 Oscillations in D0 →k+π-π+π- Decays and Measurement of the Associated Coherence Parameters",

abstract = "Charm meson oscillations are observed in a time-dependent analysis of the ratio of D0→K+π-π+π- to D0→K-π+π-π+ decay rates, using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes rDK3π and the product of the coherence factor RDK3π and a charm mixing parameter yK3π′. The constraints measured are rDK3π=(5.67±0.12)×10-2, which is the most precise determination to date, and RDK3πyK3π′=(0.3±1.8)×10-3, which provides useful input for determinations of the CP-violating phase γ in B±→DK±, D→Kπ±ππ± decays. The analysis also gives the most precise measurement of the D0→K+π-π+π- branching fraction, and the first observation of D0-D-0 oscillations in this decay mode, with a significance of 8.2 standard deviations.",

author = "\{(LHCb Collaboration)\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. and F. Archilli and P. D'Argent and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and Bel, \{L. J.\} and V. Bellee and F. Fleuret",

note = "Publisher Copyright: {\textcopyright} 2016 CERN.",

year = "2016",

month = jun,

day = "17",

doi = "10.1103/PhysRevLett.116.241801",

language = "English",

volume = "116",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "24",

}

TY - JOUR

T1 - First Observation of D0-D-0 Oscillations in D0 →k+π-π+π- Decays and Measurement of the Associated Coherence Parameters

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - D'Argent, P.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Bel, L. J.

AU - Bellee, V.

AU - Fleuret, F.

PY - 2016/6/17

Y1 - 2016/6/17

N2 - Charm meson oscillations are observed in a time-dependent analysis of the ratio of D0→K+π-π+π- to D0→K-π+π-π+ decay rates, using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes rDK3π and the product of the coherence factor RDK3π and a charm mixing parameter yK3π′. The constraints measured are rDK3π=(5.67±0.12)×10-2, which is the most precise determination to date, and RDK3πyK3π′=(0.3±1.8)×10-3, which provides useful input for determinations of the CP-violating phase γ in B±→DK±, D→Kπ±ππ± decays. The analysis also gives the most precise measurement of the D0→K+π-π+π- branching fraction, and the first observation of D0-D-0 oscillations in this decay mode, with a significance of 8.2 standard deviations.

AB - Charm meson oscillations are observed in a time-dependent analysis of the ratio of D0→K+π-π+π- to D0→K-π+π-π+ decay rates, using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes rDK3π and the product of the coherence factor RDK3π and a charm mixing parameter yK3π′. The constraints measured are rDK3π=(5.67±0.12)×10-2, which is the most precise determination to date, and RDK3πyK3π′=(0.3±1.8)×10-3, which provides useful input for determinations of the CP-violating phase γ in B±→DK±, D→Kπ±ππ± decays. The analysis also gives the most precise measurement of the D0→K+π-π+π- branching fraction, and the first observation of D0-D-0 oscillations in this decay mode, with a significance of 8.2 standard deviations.

UR - https://www.scopus.com/pages/publications/84975512199

U2 - 10.1103/PhysRevLett.116.241801

DO - 10.1103/PhysRevLett.116.241801

M3 - Article

AN - SCOPUS:84975512199

SN - 0031-9007

VL - 116

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 241801

ER -

First Observation of D0-D-0 Oscillations in D0 →k+π-π+π- Decays and Measurement of the Associated Coherence Parameters

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Contient cette citation