Search for first generation scalar leptoquarks in the eνjj channel in pp collisions at √{ s} = 7 TeV
Abstract
A search for pair-production of first generation scalar leptoquarks is performed in the final state containing an electron, a neutrino, and at least two jets using proton-proton collision data at √{ s} = 7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb-1. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron + neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar leptoquark at 339 GeV for β = 0.5, where β is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of β greater than 0.05.
- Publication:
-
Physics Letters B
- Pub Date:
- September 2011
- DOI:
- 10.1016/j.physletb.2011.07.089
- arXiv:
- arXiv:1105.5237
- Bibcode:
- 2011PhLB..703..246C
- Keywords:
-
- LHC;
- CMS;
- Physics;
- Exotica;
- Leptoquarks;
- High Energy Physics - Experiment
- E-Print:
- Phys Lett B 703 (2011) 246