Journal article
Search for the Xb and other hidden-beauty states in the π+π−ϒ(1S) channel at ATLAS
Physics letters. B, Vol.740, pp.199-217
2015
DOI: 10.1016/j.physletb.2014.11.055
Abstract
This Letter presents a search for a hidden-beauty counterpart of the X(3872) in the mass ranges of 10.05-10.31 GeV and 10.40-11.00 GeV, in the channel Xb→π+π−ϒ(1S)(→μ+μ−), using 16.2 fb−1 of √s=8 TeVpp collision data collected by the ATLAS detector at the LHC. No evidence for new narrow states is found, and upper limits are set on the product of the Xb cross section and branching fraction, relative to those of the ϒ(2S), at the 95% confidence level using the CLS approach. These limits range from 0.8% to 4.0%, depending on mass. For masses above 10.1 GeV, the expected upper limits from this analysis are the most restrictive to date. Searches for production of the ϒ(13DJ), ϒ(10860), and ϒ(11020) states also reveal no significant signals.
Details
- Title: Subtitle
- Search for the Xb and other hidden-beauty states in the π+π−ϒ(1S) channel at ATLAS
- Creators
- G Aad - Aix-Marseille UniversitéR Aben - University of AmsterdamI Angelozzi - University of AmsterdamL.J Beemster - University of AmsterdamS Bentvelsen - University of AmsterdamD Berge - University of AmsterdamG.J Bobbink - University of AmsterdamK Bos - University of AmsterdamH Boterenbrood - University of AmsterdamP Butti - University of AmsterdamA Castelli - University of AmsterdamA.P ColijnP de JongL de NooijI DeigaardC DelucaP.O DeviveirosS DhaliwalP FerrariS GadatschD.A.A GeertsF HartjesN.P HesseyN HodO IgonkinaP KluitE KoffemanF LindeH LeeJ MahlstedtJ MechnichK.P OussorenP PaniD SalekN ValencicW van den WollenbergP.C van der DeijlR van der GeerH van der GraafR van der LeeuwI van VulpenW VerkerkeJ.C VermeulenM VreeswijkH WeitsATLAS CollaborationU Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.740, pp.199-217
- DOI
- 10.1016/j.physletb.2014.11.055
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier B.V
- Grant note
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- Language
- English
- Date published
- 2015
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984200056602771
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