Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb1 of pp collisions at s = 1.96 TeV using the CDF II detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00389133" target="_blank" >RIV/68378271:_____/12:00389133 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.physletb.2012.07.045" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2012.07.045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2012.07.045" target="_blank" >10.1016/j.physletb.2012.07.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb1 of pp collisions at s = 1.96 TeV using the CDF II detector

Popis výsledku v původním jazyce

We present a search for the standard model Higgs boson produced in association with a Z boson, using up to 7.9 fb1 of integrated luminosity from pp? collisions collected with the CDF II detector. We utilize several novel techniques, including multivariate lepton selection, multivariate trigger parametrization, and a multi-stage signal discriminant consisting of specialized functions trained to distinguish individual backgrounds. By increasing acceptance and enhancing signal discrimination, these techniques have significantly improved the sensitivity of the analysis above what was expected from a larger dataset alone. We observe no significant evidence for a signal, and we set limits on the ZH production cross section. For a Higgs boson with mass 115 GeV/c2, we expect (observe) a limit of 3.9 (4.8) times the standard model predicted value, at the 95% credibility level.

Název v anglickém jazyce

Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb1 of pp collisions at s = 1.96 TeV using the CDF II detector

Popis výsledku anglicky

We present a search for the standard model Higgs boson produced in association with a Z boson, using up to 7.9 fb1 of integrated luminosity from pp? collisions collected with the CDF II detector. We utilize several novel techniques, including multivariate lepton selection, multivariate trigger parametrization, and a multi-stage signal discriminant consisting of specialized functions trained to distinguish individual backgrounds. By increasing acceptance and enhancing signal discrimination, these techniques have significantly improved the sensitivity of the analysis above what was expected from a larger dataset alone. We observe no significant evidence for a signal, and we set limits on the ZH production cross section. For a Higgs boson with mass 115 GeV/c2, we expect (observe) a limit of 3.9 (4.8) times the standard model predicted value, at the 95% credibility level.

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

<a href="/cs/project/LC527" target="_blank" >LC527: Centrum částicové fyziky</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

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Svazek periodika

715

Číslo periodika v rámci svazku

1-3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

98-104

Kód UT WoS článku

000308519000013

EID výsledku v databázi Scopus

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