8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

Search for dark matter from prompt lepton-jets in the electron channel

12 Aug 2011, 08:00
20m
Plenary Ballroom (Rhode Island Convention Center)

Plenary Ballroom

Rhode Island Convention Center

Parallel contribution Beyond the Standard Model Beyond the Standard Model

Speaker

Mahsana Ahsan (Department of Physics-University of Texas at Dallas-Unknown)

Description

We will present a search on dark matter particles of nearly GeV scale that decay into highly boosted set of electrons. \ These collimated set of leptons produced in the final state are called lepton-jets. \ The search is motivated by recent observations from astrophysical experiments on the anomalous excess of cosmic ray leptons. \ The analysis is performed using the data collected by the ATLAS detector from proton-proton collisions at $\sqrt{s}=7$ TeV at the Large Hadron Collider. \ The dominant source of background are events containing energetic jets from QCD productions which mimic the signal events. \ We utilize multivariate analysis techniques to discriminate the signal against the background and perform a cut-based analysis for cross-checks.

Primary author

Mahsana Ahsan (Department of Physics-University of Texas at Dallas-Unknown)

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