Vector Boson plus Jets background to the early MET plus jets search

Mariarosaria D'Alfonso, George Alverson, Pran Nath, Brent Nelson
2010
A search in large missing transverse momentum (MET) plus jets final state topology has great potential for discovery of new physics involving dark matter candidates early in LHC running. Some Standard Model processes produce the same observable signature. One of the main background is expected to be from higher order QCD contributions to single vector boson, which is difficult to predict with Monte Carlo. A strategy to estimate this contribution from data for the early search with the CMS
more » ... with the CMS detector using different control samples is presented. Abstract. Searches in large missing transverse momentum (MET) plus jets final state topology have great potential for discovery of new physics involving dark matter candidates during early LHC running. Standard Model processes that produce the same observable signature constitute the background to this type of searches. One of the main background is expected to come from higher-order QCD radiation is single vector boson production, which is difficult to model with Monte Carlo simulations. A strategy to estimate this background using data driven methods with various control samples is presented for the early search with the CMS detector.
doi:10.1063/1.3327571 fatcat:xz4vmztv55hglixdhpr44lgcc4