Search for dark matter particles in proton-proton collisions at s = 8 √s=8 TeV using the razor variables
Name
Khachatryan2016_Article_SearchForDarkMatterParticlesIn.pdf
Description
Published version
Size
1.9 MB
Format
Adobe PDF
Checksum (MD5)
3075fcdac77a76c6dc4768d2a6ce8c23
Author(s)
The CMS Collaboration
Date Issued
2016
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
The, C. M. S. collaboration, et al. "Search for Dark Matter Particles in Proton-Proton Collisions at vS=8 Tev Using the Razor Variables." Journal of High Energy Physics 2016 12 (2016).
Version
Final published version
Abstract
© 2016, The Author(s). A search for dark matter particles directly produced in proton-proton collisions recorded by the CMS experiment at the LHC is presented. The data correspond to an integrated luminosity of 18.8 fb−1, at a center-of-mass energy of 8 TeV. The event selection requires at least two jets and no isolated leptons. The razor variables are used to quantify the transverse momentum balance in the jet momenta. The study is performed separately for events with and without jets originating from b quarks. The observed yields are consistent with the expected backgrounds and, depending on the nature of the production mechanism, dark matter production at the LHC is excluded at 90% confidence level for a mediator mass scale Λ below 1 TeV. The use of razor variables yields results that complement those previously published.[Figure not available: see fulltext.]
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP12(2016)088
