UNSPECIFIED (2014) Search for the X(4140) state in B+→J/ψϕK+ decays with the D0 detector. Physical Review D, 89 (1): 012004. ISSN 1550-7998
Abstract
We investigate the decay B+→J/ψϕK+ in a search for the X(4140) state, a narrow threshold resonance in the J/ψϕ system. The data sample corresponds to an integrated luminosity of 10.4 fb−1 of pp¯ collisions at 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±4.3(stat)±6.6(syst) MeV and its width to be Γ=19.9±12.6(stat)+3.0−8.0(syst) MeV.
Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
© 2014 American Physical Society
Departments:
ID Code:
68373
Deposited By:
Deposited On:
24 Jan 2014 05:55
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Aug 2024 23:44