Low Mass Standard Model Higgs Limit at the Tevatron
Abstract
The searches for the Standard Model (SM) Higgs Boson at the Fermilab Tevatron by the CDF and D experiments are presented. Their state of the art techniques, including maximizing Higgs signal acceptance, reducing background through b-jet ID, and with Multi-Variate discrimination between signal and background, are elucidated. The two experiments are able to achieve a sensitivity of three to five times SM cross section (σSM) at the benchmark mass point of mH=115 GeV/c2 using the main search channels WH->lvbb, ZH->vvbb, and ZH->llbb, and on combining all the channels from CDF and D, the observed (expected) limit is 1.56 (1.45) x σSM. The present expected limit is 1.8 x σSM or below for the entire low mass range, and sensitivity projections at present anticipate in Tevatron Run II a 3σ sensitivity achievement for mH=115 GeV/c2.
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