Search for charged Higgs bosons decaying via H± → τ±ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector

The ATLAS Collaboration

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Abstract

Abstract: The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at s$$ \sqrt{s} $$ = 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± 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±) × ℬ(H± → τ±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± + X) × ℬ(H± → τ±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± masses between 200 GeV and 250 GeV.[Figure not available: see fulltext.]

Original languageEnglish (US)
Article number88
JournalJournal of High Energy Physics
Volume2015
Issue number3
DOIs
StatePublished - Mar 17 2015

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Higgs bosons
collisions
detectors
transverse momentum
confidence
quarks
protons
pair production
statistical analysis
leptons
muons
bosons
neutrinos
cross sections
decay
products
electrons

Keywords

  • Beyond Standard Model
  • Hadron-Hadron Scattering
  • Higgs physics
  • Supersymmetry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

@article{2a98df9a81214c8faa8d8df31e1a6708,
title = "Search for charged Higgs bosons decaying via H± → τ±ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector",
abstract = "Abstract: The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at s$$ \sqrt{s} $$ = 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± 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±) × ℬ(H± → τ±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± + X) × ℬ(H± → τ±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± masses between 200 GeV and 250 GeV.[Figure not available: see fulltext.]",
keywords = "Beyond Standard Model, Hadron-Hadron Scattering, Higgs physics, Supersymmetry",
author = "{The ATLAS Collaboration} and G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P A} and G. Akimoto and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, {B. M M} and Allison, {L. J.} and Cheu, {Elliott C} and Johns, {Kenneth A} and Rutherfoord, {John P} and Shupe, {Michael A} and Varnes, {Erich W}",
year = "2015",
month = "3",
day = "17",
doi = "10.1007/JHEP03(2015)088",
language = "English (US)",
volume = "2015",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "3",

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TY - JOUR

T1 - Search for charged Higgs bosons decaying via H± → τ±ν in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector

AU - The ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P A

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Allbrooke, B. M M

AU - Allison, L. J.

AU - Cheu, Elliott C

AU - Johns, Kenneth A

AU - Rutherfoord, John P

AU - Shupe, Michael A

AU - Varnes, Erich W

PY - 2015/3/17

Y1 - 2015/3/17

N2 - Abstract: The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at s$$ \sqrt{s} $$ = 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± 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±) × ℬ(H± → τ±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± + X) × ℬ(H± → τ±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± masses between 200 GeV and 250 GeV.[Figure not available: see fulltext.]

AB - Abstract: The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at s$$ \sqrt{s} $$ = 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± 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±) × ℬ(H± → τ±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± + X) × ℬ(H± → τ±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± masses between 200 GeV and 250 GeV.[Figure not available: see fulltext.]

KW - Beyond Standard Model

KW - Hadron-Hadron Scattering

KW - Higgs physics

KW - Supersymmetry

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U2 - 10.1007/JHEP03(2015)088

DO - 10.1007/JHEP03(2015)088

M3 - Article

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 3

M1 - 88

ER -