Search for the X(4140) state in B+->J/psi phi K+ decays with the D0 detector

V.M. Abazov; F. Badaud; U. Bassler; M. Besançon; D. Brown; E. Chapon; F. Couderc; F. Deliot; y. Enari; S. Greder; G. Grenier; Ph Gris; A. Grohsjean; Z. Hubacek; T. Kurca; P. Lebrun; J. Lellouch; D. Li; F. Miconi; I. Ripp-Baudot; C. Royon; V. Shary; M. Titov; B. Tuchming; D. Vilanova; L. Zivkovic; G. Sajot; J. Stark; J.-F. Grivaz; T. Guillemin; M. Jaffré; P. Pétroff; M.-C. Cousinou; A. Duperrin; W. Geng; E. Kajfasz; S. Kermiche; E. Nagy; N. Osman; D0 Collaboration; Michael Y. Wang

doi:10.1103/PhysRevD.89.012004

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Search for the X(4140) state in B+->J/psi phi K+ decays with the D0 detector

Journal article

Peer reviewed

Search for the X(4140) state in B+->J/psi phi K+ decays with the D0 detector

V.M. Abazov, F. Badaud, U. Bassler, M. Besançon, D. Brown, E. Chapon, F. Couderc, F. Deliot, y. Enari, S. Greder, …

Physical review. D, Particles, fields, gravitation, and cosmology, Vol.89(1), p.012004

2014

DOI: https://doi.org/10.1103/PhysRevD.89.012004

Abstract

High Energy Physics - Experiment

Physics

We investigate the decay B^+ -> J/psi phi K^+ in a search for the X(4140) state, a narrow threshold resonance in the J/psi phi system. The data sample corresponds to an integrated luminosity of 10.4 fb^{-1} of ppbar collisions at sqrt s =1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. We observe a mass peak with a statistical significance of 3.1 standard deviations and measure its invariant mass to be M=4159.0 +-.3 (stat) +- 6.6 (syst) MeV and its width to be Gamma= 19.9+-12.6 (stat)}^{+1.0}_{-8.0} (syst) MeV. Identifying this mass peak as the X(4140), we measure, for M(J/psi phi) <4.59 GeV, the relative branching fraction B_rel= B(B^+ -> X(4140) K^+)/ B(B^+ ->J/psi phi K^+) to be 21+-8 (stat) +- 4 (syst)%. In addition, the data can accommodate the presence of a second enhancement at a mass of 4328.5+- 12.0 MeV.

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 5 Physics; 5.9 Particles & Fields; 5.9.73 Nucleon
Web Of Science research areas: Astronomy & Astrophysics; Physics, Particles & Fields
ESI research areas: Physics

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Title: Search for the X(4140) state in B+->J/psi phi K+ decays with the D0 detector
Creators: V.M. Abazov - Joint Institute for Nuclear Research
F. Badaud - Institut Pascal
U. Bassler - Institut de Recherches sur les lois Fondamentales de l'Univers
M. Besançon - Institut de Recherches sur les lois Fondamentales de l'Univers
D. Brown - University of Paris
E. Chapon - Institut de Recherches sur les lois Fondamentales de l'Univers
F. Couderc - Institut de Recherches sur les lois Fondamentales de l'Univers
F. Deliot - Institut de Recherches sur les lois Fondamentales de l'Univers
y. Enari - University of Paris
S. Greder - University of Strasbourg
G. Grenier - Claude Bernard University Lyon 1
Ph Gris - Institut Pascal
A. Grohsjean - Institut de Recherches sur les lois Fondamentales de l'Univers
Z. Hubacek - Czech Technical University in Prague
T. Kurca - Claude Bernard University Lyon 1
P. Lebrun - Claude Bernard University Lyon 1
J. Lellouch - University of Paris
D. Li - University of Paris
F. Miconi - University of Strasbourg
I. Ripp-Baudot - University of Strasbourg
C. Royon - Institut de Recherches sur les lois Fondamentales de l'Univers
V. Shary - Institut de Recherches sur les lois Fondamentales de l'Univers
M. Titov - Institut de Recherches sur les lois Fondamentales de l'Univers
B. Tuchming - Institut de Recherches sur les lois Fondamentales de l'Univers
D. Vilanova - Institut de Recherches sur les lois Fondamentales de l'Univers
L. Zivkovic - University of Paris
G. Sajot - Joseph Fourier University
J. Stark - Joseph Fourier University
J.-F. Grivaz - University of Paris-Sud
T. Guillemin - University of Paris-Sud
M. Jaffré - University of Paris-Sud
P. Pétroff - University of Paris-Sud
M.-C. Cousinou - Aix-Marseille University
A. Duperrin - Aix-Marseille University
W. Geng - Michigan State University
E. Kajfasz - Aix-Marseille University
S. Kermiche - Aix-Marseille University
E. Nagy - Aix-Marseille University
N. Osman - Aix-Marseille University
D0 Collaboration
Michael Y. Wang - UMMG Dept of Neurological Surgery
Publication Details: Physical review. D, Particles, fields, gravitation, and cosmology, Vol.89(1), p.012004
Publisher: American Physical Society
Academic Unit: UMMG Dept of Neurological Surgery; Miller School of Medicine
Language: English
Resource Type: Journal article
Record Identifier: 991031740211202976