Thursday, February 23, 2012

1202.4937 (Diptimoy Ghosh et al.)

Higgs signal in Chargino-Neutralino production at the LHC    [PDF]

Diptimoy Ghosh, Monoranjan Guchait, Dipan Sengupta
We have analyzed the prospect of detecting a higgs signal in mSUGRA/CMSSM
based Supersymmetric(SUSY) model via chargino-neutralino($\CH_1\N0_2$)
production at 8 TeV LHC energy. The signal is studied in the channel with $\ell
+ b \bar b + \PMET$ following the decays, $\CH_1 \to W^\pm \N0_1$, $\N0_2 \to
\N0_1 h$ and $h \to b \bar b$. In this analysis reconstruction of the higgs
mass out of two b-jets plays a very crucial role in determining the signal to
background ratio. We follow two techniques to reconstruct higgs mass: (A) using
two identified b-jets, (B) using jet substructure technique. In addition,
imposing a certain set of selection cuts we observe the significance is better
for the latter method. We find that a viable signal can be obtained for the
higgs mass $\sim$ 125 GeV with an integrated luminosity 100 $\lumi$.
View original: http://arxiv.org/abs/1202.4937

No comments:

Post a Comment