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Title: Search for the Standard Model Higgs Boson in $$ZH \to \ell^+ \ell^- b\bar{b}$$ Production with the D0 Detector in 9.7 fb$$^{-1}$$ of $$p\bar{p}$$ Collisions at $$\sqrt{s}=1.96$$ TeV

Abstract

We present a search for the standard model (SM) Higgs boson produced in association with a Z boson in 9.7 fb -1 of ppbar collisions collected with the D0 detector at the Fermilab Tevatron Collider at sqrt(s) = 1.96 TeV. Selected events contain one reconstructed Z → e⁺e⁻ or Z → μ⁺μ⁻ candidate and at least two jets, including at least one jet identified as likely to contain a b quark. To validate the search procedure, we also measure the cross section for ZZ production in the same final state. It is found to be consistent with its SM prediction. We set upper limits on the ZH production cross section times branching ratio for H → $$b\bar{b}$$ at the 95% C.L. for Higgs boson masses 90 < $$M_H$$ < 150 GeV. Lastly, the observed (expected) limit for $$M_H$$ = 125 GeV is 7.1 (5.1) times the SM cross section.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
D0 Collaboration
OSTI Identifier:
1352875
Alternate Identifier(s):
OSTI ID: 1103358
Report Number(s):
FERMILAB-PUB-12-403-E; arXiv:1207.5819
Journal ID: ISSN 0031-9007; 1123791
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 12; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Abazov, Victor Mukhamedovich. Search for the Standard Model Higgs Boson in $ZH \to \ell^+ \ell^- b\bar{b}$ Production with the D0 Detector in 9.7 fb$^{-1}$ of $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV. United States: N. p., 2012. Web. doi:10.1103/PhysRevLett.109.121803.
Abazov, Victor Mukhamedovich. Search for the Standard Model Higgs Boson in $ZH \to \ell^+ \ell^- b\bar{b}$ Production with the D0 Detector in 9.7 fb$^{-1}$ of $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV. United States. doi:10.1103/PhysRevLett.109.121803.
Abazov, Victor Mukhamedovich. Thu . "Search for the Standard Model Higgs Boson in $ZH \to \ell^+ \ell^- b\bar{b}$ Production with the D0 Detector in 9.7 fb$^{-1}$ of $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV". United States. doi:10.1103/PhysRevLett.109.121803. https://www.osti.gov/servlets/purl/1352875.
@article{osti_1352875,
title = {Search for the Standard Model Higgs Boson in $ZH \to \ell^+ \ell^- b\bar{b}$ Production with the D0 Detector in 9.7 fb$^{-1}$ of $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV},
author = {Abazov, Victor Mukhamedovich},
abstractNote = {We present a search for the standard model (SM) Higgs boson produced in association with a Z boson in 9.7 fb-1 of ppbar collisions collected with the D0 detector at the Fermilab Tevatron Collider at sqrt(s) = 1.96 TeV. Selected events contain one reconstructed Z → e⁺e⁻ or Z → μ⁺μ⁻ candidate and at least two jets, including at least one jet identified as likely to contain a b quark. To validate the search procedure, we also measure the cross section for ZZ production in the same final state. It is found to be consistent with its SM prediction. We set upper limits on the ZH production cross section times branching ratio for H → $b\bar{b}$ at the 95% C.L. for Higgs boson masses 90 < $M_H$ < 150 GeV. Lastly, the observed (expected) limit for $M_H$ = 125 GeV is 7.1 (5.1) times the SM cross section.},
doi = {10.1103/PhysRevLett.109.121803},
journal = {Physical Review Letters},
number = 12,
volume = 109,
place = {United States},
year = {2012},
month = {9}
}

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Random Forests
journal, January 2001