Naslov
External and final state internal bremsstrahlung effects and Higgs mass reconstruction in H->ZZ*->4e for MH=130 GeV

Autori
Charlot, Claude ; Puljak, Ivica

Izvornik
CMS notes (1193-9273) (1997), 043; 1-31

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, pregledni rad, stručni

Ključne riječi
bremsstrahlung; electron reconstruction; Higgs; CMS; LHC

Sažetak
The effect of external as well as internal bremsstrahlung in Higgs to ZZ* to four electrons channel is studied in full detector simulation. A method is proposed for external and internal bremsstrahlung recovery, allowing us to use more than 95 percent of electrons with E over generated momentum between -0.8 and 0.8. It is shown that traditionnal E/p cut can be implemented with high efficiency, but that precise mass reconstruction is achievable with higher efficiency without applying such cuts. Z and Higgs reconstruction efficiencies are given, in presence of jet background from the underlying event. The final efficiency for Higgs reconstruction within plus or minus 2 sigmas amounts to 37 percent, with a resolution of 0.85 GeV for a realistic PbWO4 calorimeter. The resolution drops to 1.28 GeV for a pessimistic version of the calorimeter resolution.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

Napomena
The Compact Muon Solenoid (CMS) Experiment

POVEZANOST RADA