Inclusive Search for New Physics with Like-Sign Dilepton Events in ppˉp \bar{p} Collisions at s\sqrt{s} = 1.96-TeV

Collaboration
Feb, 2007
8 pages
Published in:
  • Phys.Rev.Lett. 98 (2007) 221803
e-Print:
Report number:
  • FERMILAB-PUB-07-053-E
Experiments:

Citations per year

2007201020132016201902468101214
Abstract: (arXiv)
We describe a search for anomalous production of events with two leptons (ee or μ\mu) of the same electric charge in \ppbar collisions at a center-of-mass energy of 1.96 TeV. Many extensions to the standard model predict the production of two leptons of the same electric charge. This search has a significant increase in sensitivity compared to earlier searches. Using a data sample corresponding to 1 \invfb of integrated luminosity recorded by the CDF II detector, we observe no significant excess in an inclusive selection (expect 33.2±4.733.2\pm4.7 events, observe 44) or in a SUSY-optimized selection (expect 7.8±1.17.8\pm1.1 events, observe 13.)
Note:
  • replaced with published version
  • 12.60.Jv
  • 14.80.Ly
  • 13.85.Qk
  • CDF
  • anti-p p: colliding beams
  • anti-p p: inclusive reaction
  • final state: dilepton
  • charge: 2
  • lepton: transverse momentum
  • new particle: hadroproduction