Search for the Standard Model Higgs Boson in the $$Z^+ H \to \mu + \mu + b \bar{b}$$ Channel in $$p \bar{p}$$ Collisions at $$\sqrt{s}$$ = 1.96 TeV
- State Univ. of New York (SUNY), Stony Brook, NY (United States)
This dissertation describes a search for the standard model Higgs boson (H) produced in association with a Z boson at the DØ experiment. This analysis is based on an integrated luminosity of L = 370 pb-1 of data. The p$$\bar{p}$$ → ZH → µ+µ- + b$$\bar{b}$$ channel is studied where the Z boson decays to µ+µ- and the H decays to b$$\bar{b}$$. In order to boost the the signal rate we first introduce the optimized di-muon isolation probability for separating the Z + 2j signal from the multi-jet background, then use the optimized b-jet identifier to enhance the double b-tag signal significance. The upper limits on the σ(p$$\bar{p}$$ → ZH) × Br(H → b$$\bar{b}$$) for Higgs masses between 105 GeV and 145 GeV are set at 95% C.L.
- Research Organization:
- Fermi National Accelerator Laboratory (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:
- 1415836
- Report Number(s):
- AAT--3334940; PROQUEST--1642913001; FERMILAB-THESIS--2007-11; 755492
- Country of Publication:
- United States
- Language:
- English
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