8-12 July 2013
Africa/Johannesburg timezone
Home > Timetable > Session details > Contribution details
PDF | XML | iCal

Research progress in the Η→ΖΖ(∗)→τ+ τ- l+l- decay channel

Presented by Mr. Guillermo HAMITY on 10 Jul 2013 from 09:20 to 09:40
Type: Oral Presentation
Session: NPRP
Track: Track B - Nuclear, Particle and Radiation Physics

Abstract

<p>The Higgs to <i>ΖZ<sup>(∗)</sup></i> to <i>l<sup>+</sup>l<sup>-</sup>l<sup>+</sup>l<sup>-</sup></i> decay channel has good signal to background ratio and can be used to reconstruct the Higgs invariant mass with quite good resolution for an intermediate mass range Higgs ( <i>m<sub>Ζ</sub> < m<sub>H</sub> < 2m<sub>Ζ</sub></i> ). This makes the <i>ΖΖ<sup>(∗)</sup></i> channel one the most relevant channels to study at the LHC, where it has been found that <i>m<sub>H<sub></i>≈125 GeV . Although the Higgs to <i>ΖΖ<sup>(∗)</sup></i> decay channel played an important role in this discovery, the decay leptons considered excluded <i>Ζ</i> bosons decaying into τ leptons. Reasons for this lie in the hard-to-detect hadronic or leptonic τ decays. A study which includes <i>Ζ</i> decaying into τ is beneficial to completing the picture of the Higgs search, particularly in the statistically limited vector-boson-fusion like search. Preliminary results of the search for Higgs channel <i>Η→ΖZ<sup>(∗)</sup>→τ<sup>+</sup> τ<sup>-</sup> l<sup>+</sup>l<sup>-</sup>, (l = e or μ)</i> will be presented and discussed.</p>

Award

No

Level

MSc

Supervisor

Trevor Vickey (Trevor.Vickey@cern.ch) WITS

Paper

No

Place

Location: A1-38


Primary authors

More