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Search for the Standard Model Higgs Boson in the WH→ τ v b$$\bar{b}$$ Channel with the D0 Detector

Thesis/Dissertation ·
DOI:https://doi.org/10.2172/1128104· OSTI ID:1128104
 [1]
  1. Univ. of Manchester (United Kingdom)
A search for the Standard Model Higgs boson is performed in 4.0 fb-1 of p$$\bar{p}$$ collisions at √s = 1.96 TeV, collected with the DØ detector at the Fermilab Tevatron. The final state considered is a pair of b-jets with large missing transverse energy and one hadronic tau decay as expected from the reaction p$$\bar{p}$$ → WH → τ v b$$\bar{b}$$. Boosted decision trees are used to discriminate the signal from the background. Good agreement is observed between data and expected backgrounds. For a Higgs boson mass of 115 GeV, a limit is set at 95% C.L. on the cross-section times branching fraction of (p$$\bar{p}$$→ (Z/W)H)×(H → b$$\bar{b}$$) which is 14 times larger than the Standard Model value.
Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1128104
Report Number(s):
FERMILAB-THESIS--2009-74
Country of Publication:
United States
Language:
English