Naslov
Search strategy for the Higgs boson in the ZZ^(*) decay channel at sqrt(s)=10 TeV with the CMS experiment

Autori
Baffioni, S. ; ... ; Plestina, R. ; Puljak, I. ; ...

Izvornik
CMS Analysis Note 2010/237

Vrsta, podvrsta
Ostale vrste radova, ostalo

Godina
2010

Ključne riječi
CMS; LHC; Higgs boson

Sažetak
A study of the sensitivity for the inclusive production of Standard Model Higgs bosons ${;\rm H};$ decaying in ZZ$^{;(*)};$ pairs is presented with the CMS experiment at the CERN LHC $pp$ collider at 10 TeV center-of-mass energy, for the integrated luminosity of 200 pb$^{;-1};$ and 1 fb$^{;-1};$. The analysis is performed for the leptonic decay channels ${;\rm H}; \rightarrow {;\rm Z};{;\rm Z};^{;(*)}; \rightarrow 4\ell$ with $\ell = e, \mu$ and for a mass $m_{;\rm H};$ in the range from $115$ to $250 \GeVcc$. % Signal and background datasets obtained with a detailed Monte Carlo simulation of the detector response are treated using a complete reconstruction chain. % A simple $m_{;\rm H};$ independent sequence of cuts is established which provides a clean sample of $4\ell$ events while preserving the highest signal detection efficiency. A $m_{;\rm H};$ dependent analysis is also designed for several mass ranges by optimizing the cuts according to statistical estimators for the discovery and the exclusion of a signal compatible with the existence of a Standard Model Higgs. No evidence for a signal is found for a Higgs boson with a mass $m_{;\rm H};$ lying anywhere in the mass range considered. % In absence of significant deviations from background expectations, upper limits on the production cross-section of a Standard Model- like Higgs boson can be established. The limits extend beyond existing constraints.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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