Search for Contact Interactions in Dilepton Mass Spectra in pp Collisions at sqrt(s) = 8 TeV
Collaboration
Citations per year
Abstract:
A search for contact interactions in events with muon or electron
pairs has been performed. The data samples were collected by the CMS
detector and correspond to integrated luminosities of 20.6 and
19.7\,fb for the muon and electron channels, respectively, for
proton-proton collisions at \,TeV. Within the context of a
quark and lepton compositeness model with a left-left isoscalar
contact interaction, 95\% CL lower limits are set on , the
energy scale parameter for the contact interaction. For dimuons the
limits are 12.0 and 15.2\,TeV for destructive and constructive
interference with Drell--Yan production, respectively; for dielectrons
the limits are 13.5 and 18.3\,TeV. These limits are the most stringent
to date.Note:
- Preliminary results
- Data
- dilepton: mass spectrum
- p p: scattering
- contact interaction
- electron: pair production
- muon: pair production
- Drell-Yan process
- interference
- CMS
- fermion: composite
References(49)
Figures(13)
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