Observation of J/ψϕ structures consistent with exotic states from amplitude analysis of B+ -> J/ψϕ K+ decays
File(s)PhysRevLett.118.022003.pdf (379.31 KB)
Published version
Author(s)
Type
Journal Article
Abstract
The first full amplitude analysis of B+→J/ψϕK+ with J/ψ→μ+μ−, ϕ→K+K− decays is performed with a data sample of 3 fb−1 of pp collision data collected at √s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into ϕK+, and four J/ψϕ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.
Date Issued
2017-01-11
Date Acceptance
2016-09-29
Citation
Physical Review Letters, 2017, 118 (2)
ISSN
1079-7114
Publisher
American Physical Society
Journal / Book Title
Physical Review Letters
Volume
118
Issue
2
Copyright Statement
© 2017 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000391926900004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
PARTICLES
GEV/C
SPIN
hep-ex
General Physics
02 Physical Sciences
Publication Status
Published
Article Number
ARTN 022003