Search for charged Higgs bosons in decays of top quarks

Journal Article · Mon Jun 01 04:00:00 EDT 2009 · Phys.Rev.D

DOI:https://doi.org/10.1103/PhysRevD.80.051107· OSTI ID:1893491

Abazov, V. M.

We present a search for charged Higgs bosons in decays of top quarks, in the mass range $$80 < m_{H^{\pm} < 155$$ GeV, assuming the subsequent decay $$H^{+} \to \tau^{+} \nu_\tau$$ (and its charge conjugate). Using 0.9 fb$$^{-1}$$ of lepton+jets data collected with the D0 detector at the Fermilab Tevatron $$p\bar{p}$$ collider, operating at a center of mass energy $$\sqrt{s}=1.96$$ TeV, we find no evidence for a $$H^{\pm}$$ signal. Hence, we exclude branching ratios $$B(t \to H^+b) > 0.24$$ for $$m_{H^{\pm}=80$$ GeV, and $$B(t \to H^+b) > 0.19$$ for $$m_{H^{\pm}=155$$ GeV, at the 95% C.L.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Contributing Organization: D0
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1893491
• Report Number(s): FERMILAB-PUB-09-329-E; arXiv:0906.5326; oai:inspirehep.net:824331
• Journal Information: Phys.Rev.D, Journal Name: Phys.Rev.D Vol. 80
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS