SAIP2013

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

10 Jul 2013, 09:20

20m

Oral Presentation Track B - Nuclear, Particle and Radiation Physics NPRP

Speaker

Mr Guillermo Hamity (Msc Physics (WITS))

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

No

Abstract content <br> &nbsp; (Max 300 words)

The Higgs to ΖZ^(∗) to l⁺l^-l⁺l^- 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 ( m_Ζ < m_H < 2m_Ζ ). This makes the ΖΖ^(∗) channel one the most relevant channels to study at the LHC, where it has been found that m_H≈125 GeV . Although the Higgs to ΖΖ^(∗) decay channel played an important role in this discovery, the decay leptons considered excluded Ζ bosons decaying into τ leptons. Reasons for this lie in the hard-to-detect hadronic or leptonic τ decays. A study which includes Ζ 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 Η→ΖZ^(∗)→τ⁺ τ^- l⁺l^-, (l = e or μ) will be presented and discussed.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

MSc

Main supervisor (name and email)<br>and his / her institution

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

Presentation Materials

Paper

SAIP_proceedings_V1.pdf

Peer reviewing

Paper

Accepted on 22 Jun 2014 by Roelf Botha

Hamity.pdf