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Title: Search for doubly charged Higgs bosons in like-sign dilepton final states at √s¯= 7 TeV with the ATLAS detector

Abstract

A search for doubly-charged Higgs bosons decaying to pairs of electrons and/or muons is presented. The search is performed using a data sample corresponding to an integrated luminosity of 4.7 fb -1 of pp collisions at √s¯ = 7 TeV collected by the ATLAS detector at the LHC. Pairs of prompt, isolated, high-p T leptons with the same electric charge (e ±e ±, e ±μ ±, μ ±μ ±) are selected, and their invariant mass distribution is searched for a narrow resonance. No significant excess over Standard Model background expectations is observed, and limits are placed on the cross section times branching ratio for pair production of doubly-charged Higgs bosons. The masses of doubly-charged Higgs bosons are constrained depending on the branching ratio into these leptonic final states. Assuming pair production, coupling to left-handed fermions, and a branching ratio of 100% for each final state, masses below 409 GeV, 375 GeV, and 398 GeV are excluded for e ±e ±, e ±μ ±, and μ ±μ ±, respectively.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
Univ. of Pennsylvania, Philadelphia, PA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
ATLAS Collaboration; The ATLAS Collaboration
OSTI Identifier:
1409408
Alternate Identifier(s):
OSTI ID: 1200817
Grant/Contract Number:  
FG02-95ER40893; AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 72; Journal Issue: 12; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; EFFECTIVE MASS; ELECTRONS; EXPERIMENTAL DATA; HIGGS BOSONS; INTEGRAL CROSS SECTIONS; LEPTONIC DECAY; MASS SPECTRA; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; POSITRONS; PROTON-PROTON INTERACTIONS; REST MASS; TEV RANGE 01-10; TRANSVERSE MOMENTUM; doubly-charged Higgs bosons

Citation Formats

Aad, G. Search for doubly charged Higgs bosons in like-sign dilepton final states at √s¯= 7 TeV with the ATLAS detector. United States: N. p., 2012. Web. doi:10.1140/epjc/s10052-012-2244-2.
Aad, G. Search for doubly charged Higgs bosons in like-sign dilepton final states at √s¯= 7 TeV with the ATLAS detector. United States. doi:10.1140/epjc/s10052-012-2244-2.
Aad, G. Tue . "Search for doubly charged Higgs bosons in like-sign dilepton final states at √s¯= 7 TeV with the ATLAS detector". United States. doi:10.1140/epjc/s10052-012-2244-2. https://www.osti.gov/servlets/purl/1409408.
@article{osti_1409408,
title = {Search for doubly charged Higgs bosons in like-sign dilepton final states at √s¯= 7 TeV with the ATLAS detector},
author = {Aad, G.},
abstractNote = {A search for doubly-charged Higgs bosons decaying to pairs of electrons and/or muons is presented. The search is performed using a data sample corresponding to an integrated luminosity of 4.7 fb-1 of pp collisions at √s¯ = 7 TeV collected by the ATLAS detector at the LHC. Pairs of prompt, isolated, high-pT leptons with the same electric charge (e±e±, e±μ±, μ±μ±) are selected, and their invariant mass distribution is searched for a narrow resonance. No significant excess over Standard Model background expectations is observed, and limits are placed on the cross section times branching ratio for pair production of doubly-charged Higgs bosons. The masses of doubly-charged Higgs bosons are constrained depending on the branching ratio into these leptonic final states. Assuming pair production, coupling to left-handed fermions, and a branching ratio of 100% for each final state, masses below 409 GeV, 375 GeV, and 398 GeV are excluded for e±e±, e±μ±, and μ±μ±, respectively.},
doi = {10.1140/epjc/s10052-012-2244-2},
journal = {European Physical Journal. C, Particles and Fields},
issn = {1434-6044},
number = 12,
volume = 72,
place = {United States},
year = {2012},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 60 works
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