Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at s = 8 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470573" target="_blank" >RIV/68378271:_____/16:00470573 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/JHEP01(2016)032" target="_blank" >http://dx.doi.org/10.1007/JHEP01(2016)032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP01(2016)032" target="_blank" >10.1007/JHEP01(2016)032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at s = 8 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A search for a high-mass Higgs boson H is performed in the H WW ℓνℓν and H WW ℓνqq decay channels using pp collision data corresponding to an integrated luminosity of 20.3 fb1 collected at s=8 TeV by the ATLAS detector at the Large Hadron Collider. No evidence of a high-mass Higgs boson is found. Limits on σH BR(H WW) as a function of the Higgs boson mass mH are determined in three different scenarios: one in which the heavy Higgs boson has a narrow width compared to the experimental resolution, one for a width increasing with the boson mass and modeled by the complex-pole scheme following the same behavior as in the Standard Model, and one for intermediate widths. The upper range of the search is mH = 1500 GeV for the narrow-width scenario and mH = 1000 GeV for the other two scenarios. The lower edge of the search range is 200–300 GeV and depends on the analysis channel and search scenario. For each signal interpretation, individual and combined limits from the two WW decay channels are presented. At mH = 1500 GeV, the highest-mass point tested, σH BR(H WW) for a narrow-width Higgs boson is constrained to be less than 22 fb and 6.6 fb at 95% CL for the gluon fusion and vector-boson fusion production modes, respectively.

Název v anglickém jazyce

Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at s = 8 TeV with the ATLAS detector

Popis výsledku anglicky

A search for a high-mass Higgs boson H is performed in the H WW ℓνℓν and H WW ℓνqq decay channels using pp collision data corresponding to an integrated luminosity of 20.3 fb1 collected at s=8 TeV by the ATLAS detector at the Large Hadron Collider. No evidence of a high-mass Higgs boson is found. Limits on σH BR(H WW) as a function of the Higgs boson mass mH are determined in three different scenarios: one in which the heavy Higgs boson has a narrow width compared to the experimental resolution, one for a width increasing with the boson mass and modeled by the complex-pole scheme following the same behavior as in the Standard Model, and one for intermediate widths. The upper range of the search is mH = 1500 GeV for the narrow-width scenario and mH = 1000 GeV for the other two scenarios. The lower edge of the search range is 200–300 GeV and depends on the analysis channel and search scenario. For each signal interpretation, individual and combined limits from the two WW decay channels are presented. At mH = 1500 GeV, the highest-mass point tested, σH BR(H WW) for a narrow-width Higgs boson is constrained to be less than 22 fb and 6.6 fb at 95% CL for the gluon fusion and vector-boson fusion production modes, respectively.

Druh

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

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2016

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

68

Strana od-do

—

Kód UT WoS článku

000370437200002

EID výsledku v databázi Scopus

2-s2.0-84954454986