Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H[superscript ±] → τ[superscript ±]ν, are presented. The analysis is based on 19.5 fb[superscript −1] of proton-proton collision data at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider....
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2015
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| Online Access: | http://hdl.handle.net/1721.1/97171 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826193584408231936 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H[superscript ±] → τ[superscript ±]ν, are presented. The analysis is based on 19.5 fb[superscript −1] of proton-proton collision data at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. Charged Higgs bosons are searched for in events consistent with top-quark pair production or in associated production with a top quark, depending on the considered H[superscript ±] mass. The final state is characterised by the presence of a hadronic τ decay, missing transverse momentum, b-tagged jets, a hadronically decaying W boson, and the absence of any isolated electrons or muons with high transverse momenta. The data are consistent with the expected background from Standard Model processes. A statistical analysis leads to 95% confidence-level upper limits on the product of branching ratios ℬ(t → bH[superscript ±]) × ℬ(H[superscript ±] → τ[superscript ±]ν), between 0.23% and 1.3% for charged Higgs boson masses in the range 80-160GeV. It also leads to 95% confidence-level upper limits on the production cross section times branching ratio, σ(pp → tH[superscript ±] + X) × ℬ(H[superscript ±] → τ[superscript ±]ν), between 0.76 pb and 4.5 fb, for charged Higgs boson masses ranging from 180 GeV to 1000 GeV. In the context of different scenarios of the Minimal Supersymmetric Standard Model, these results exclude nearly all values of tan β above one for charged Higgs boson masses between 80 GeV and 160 GeV, and exclude a region of parameter space with high tan β for H[superscript ±] masses between 200 GeV and 250 GeV. |
| first_indexed | 2024-09-23T09:41:25Z |
| format | Article |
| id | mit-1721.1/97171 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:41:25Z |
| publishDate | 2015 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/971712022-09-30T16:11:13Z Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H[superscript ±] → τ[superscript ±]ν, are presented. The analysis is based on 19.5 fb[superscript −1] of proton-proton collision data at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. Charged Higgs bosons are searched for in events consistent with top-quark pair production or in associated production with a top quark, depending on the considered H[superscript ±] mass. The final state is characterised by the presence of a hadronic τ decay, missing transverse momentum, b-tagged jets, a hadronically decaying W boson, and the absence of any isolated electrons or muons with high transverse momenta. The data are consistent with the expected background from Standard Model processes. A statistical analysis leads to 95% confidence-level upper limits on the product of branching ratios ℬ(t → bH[superscript ±]) × ℬ(H[superscript ±] → τ[superscript ±]ν), between 0.23% and 1.3% for charged Higgs boson masses in the range 80-160GeV. It also leads to 95% confidence-level upper limits on the production cross section times branching ratio, σ(pp → tH[superscript ±] + X) × ℬ(H[superscript ±] → τ[superscript ±]ν), between 0.76 pb and 4.5 fb, for charged Higgs boson masses ranging from 180 GeV to 1000 GeV. In the context of different scenarios of the Minimal Supersymmetric Standard Model, these results exclude nearly all values of tan β above one for charged Higgs boson masses between 80 GeV and 160 GeV, and exclude a region of parameter space with high tan β for H[superscript ±] masses between 200 GeV and 250 GeV. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2015-06-03T12:45:32Z 2015-06-03T12:45:32Z 2015-03 2015-02 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/97171 Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Charged Higgs Bosons Decaying via H[superscript ±] → τ[superscript ±]ν in Fully Hadronic Final States Using pp Collision Data at √s = 8 TeV with the ATLAS Detector.” J. High Energ. Phys. 2015, no. 3 (March 2015). © 2015 CERN, for the benefit of the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1007/jhep03(2015)088 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Taylor, Frank E. Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title | Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title_full | Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title_fullStr | Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title_full_unstemmed | Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title_short | Search for charged Higgs bosons decaying via H[superscript ±] → τ[superscript ±]ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector |
| title_sort | search for charged higgs bosons decaying via h superscript τ superscript ν in fully hadronic final states using pp collision data at √s 8 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/97171 https://orcid.org/0000-0002-7586-7253 |
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