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Title: Search for associated production of z and Higgs bosons in proton-antiproton collisions at 1.96 TeV

Thesis/Dissertation ·
DOI:https://doi.org/10.2172/1000550· OSTI ID:1000550
 [1]
  1. Univ. of Washington, Seattle, WA (United States)

We present a search for associated production of Z and Higgs bosons in 4.2 fb-1 of $$\bar{p}$$p collisions at √s = 1.96 TeV, produced in RunII of the Tevatron and recorded by the D0 detector. The search is performed in events containing at least two muons and at least two jets. The ZH signal is distinguished from the expected backgrounds by means of multivariate classifiers known as random forests. Binned random forest output distributions are used in comparing the data to background-only and signal+background hypotheses. No excess is observed in the data, so we set upper limits on ZH production with a 95% confidence level.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1000550
Report Number(s):
FERMILAB-THESIS-2010-52; TRN: US1100223
Country of Publication:
United States
Language:
English