4.8 Article

Search for the Higgs Boson Produced in Association with Z → l+ l- in p (p)over-bar Collisions at √s=1.96 TeV

Journal

PHYSICAL REVIEW LETTERS
Volume 101, Issue 25, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.251803

Keywords

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Funding

  1. U.S. Department of Energy and National Science Foundation
  2. Italian Istituto Nazionale di Fisica Nucleare
  3. Ministry of Education, Culture, Sports, Science and Technology of Japan
  4. Natural Sciences and Engineering Research Council of Canada
  5. National Science Council of the Republic of China
  6. Swiss National Science Foundation
  7. A.P. Sloan Foundation
  8. Bundesministerium fur Bildung und Forschung, Germany
  9. Korean Science and Engineering Foundation
  10. Korean Research Foundation
  11. Science and Technology Facilities Council and the Royal Society, U.K.
  12. Institut National de Physique Nucleaire et Physique des Particules/CNRS
  13. Russian Foundation for Basic Research
  14. Ministerio de Educacion y Ciencia and Programa Consolider-Ingenio 2010, Spain
  15. Slovak RD Agency
  16. Academy of Finland
  17. STFC [ST/G502412/1, PP/E002722/1, PP/E000452/1] Funding Source: UKRI
  18. Science and Technology Facilities Council [ST/G502412/1, PP/E000444/1, PPA/A/S/2003/00461/2, PP/E002722/1, PP/E000452/1] Funding Source: researchfish

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We present a search for the Higgs boson in the process q (q) over bar -> ZH -> l(+) l(-) b (b) over bar. The analysis uses an integrated luminosity of 1 fb(-1) of p (p) over bar collisions produced at root s = 1.96 TeV and accumulated by the upgraded Collider Detector at Fermilab (CDF II). We employ artificial neural networks both to correct jets mismeasured in the calorimeter and to distinguish the signal kinematic distributions from those of the background. We see no evidence for Higgs boson production, and set 95% C.L. upper limits on sigma B-ZH(H -> b (b) over bar), ranging from 1.5 to 1.2 pb for a Higgs boson mass (m(H)) of 110 to 150 GeV/c(2).

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