Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F13%3A33146060" target="_blank" >RIV/61989592:15310/13:33146060 - isvavai.cz</a>

Výsledek na webu

<a href="http://download.springer.com/static/pdf/742/art%253A10.1007%252FJHEP03%25282013%2529076.pdf?auth66=1389872861_cadf55198081ae789fefefb6c7f21889&ext=.pdf" target="_blank" >http://download.springer.com/static/pdf/742/art%253A10.1007%252FJHEP03%25282013%2529076.pdf?auth66=1389872861_cadf55198081ae789fefefb6c7f21889&ext=.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP03(2013)076" target="_blank" >10.1007/JHEP03(2013)076</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment

Popis výsledku v původním jazyce

In several extensions of the Standard Model, the top quark can decay into a bottom quark and a light charged Higgs boson H+, t -} bH(+), in addition to the Standard Model decay t -} bW. Since W bosons decay to the three lepton generations equally, whileH+ may predominantly decay into tau nu, charged Higgs bosons can be searched for using the violation of lepton universality in top quark decays. The analysis in this paper is based on 4.6 fb(-1) of proton-proton collision data at root s = 7 TeV collectedby the ATLAS experiment at the Large Hadron Collider. Signatures containing leptons (e or mu) and/or a hadronically decaying tau (tau(had)) are used. Event yield ratios between e+ tau(had) and e + mu, as well as between mu + tau(had) and mu + e, final states are measured in the data and compared to predictions from simulations. This ratio-based method reduces the impact of systematic uncertainties in the analysis. No significant deviation from the Standard Model predictions is observed.

Název v anglickém jazyce

Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment

Popis výsledku anglicky

In several extensions of the Standard Model, the top quark can decay into a bottom quark and a light charged Higgs boson H+, t -} bH(+), in addition to the Standard Model decay t -} bW. Since W bosons decay to the three lepton generations equally, whileH+ may predominantly decay into tau nu, charged Higgs bosons can be searched for using the violation of lepton universality in top quark decays. The analysis in this paper is based on 4.6 fb(-1) of proton-proton collision data at root s = 7 TeV collectedby the ATLAS experiment at the Large Hadron Collider. Signatures containing leptons (e or mu) and/or a hadronically decaying tau (tau(had)) are used. Event yield ratios between e+ tau(had) and e + mu, as well as between mu + tau(had) and mu + e, final states are measured in the data and compared to predictions from simulations. This ratio-based method reduces the impact of systematic uncertainties in the analysis. No significant deviation from the Standard Model predictions is observed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics (print)

ISSN

1126-6708

e-ISSN

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Svazek periodika

2013

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

36

Strana od-do

"076-1"-"076-36"

Kód UT WoS článku

000317521200076

EID výsledku v databázi Scopus

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