Dhiman Chakraborty

Education:
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  * B.Tech., Engineering Physics, Indian Institute of Technology, Mumbai, 1988
  * Ph. D., Physics, State University of New York, Stony Brook, 1994

Positions held:
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  * Assistant Professor, Northern Illinois University, 2001-present
  * Research Scientist, SUNY Stony Brook, 1997-2001
  * Post-doctoral Research Associate, SUNY Stony Brook, 1995-1997
  * Post-doctoral Research Associate, University of Iowa, 1994-1995

Research Activities and Service Work:
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I have been on D0 since 1989. As a graduate student, I worked first on monitoring 
the Central Drift Chamber and later on calorimeter reconstruction software. I 
contributed to the discovery of the top quark in 1995 through my doctoral dissertation 
on a search for top quark pair production ending in lepton+jets final states.
During my first post-doctoral appointment, I worked on the design and testing of 
the Beam-Pipe Calorimeter for the ZEUS experiment at DESY and studied diffractive 
photoproduction of vector mesons.
Upon my return to D0 in 1995, I served as the "czar" of calorimeter offline software 
for the remainder of Run 1. I carried out a search for charged Higgs bosons in decays 
of the top quark and co-led the top physics group for 2 years. For Run 2, I contributed 
to the technical design of the Forward Preshower detector, design and implementation 
of the offline analysis framework and the detector alignment software. I also developed 
the neural-network-based algorithm for the identification of tau leptons, which led to 
the first observation of Z -> tau tau events at D0. I served as a co-convener of the 
tau identification group from 2001 to 2005. Presently I am working with my student on 
a search for ttbar events in tau+X final states.
Since 2001, our group at NIU has been deeply involved in the R&D of a finely segmented 
scintillator-based hadron calorimeter, detector simulation, and reconstruction software
 for the International Linear Collider. I have been a co-leader of calorimetry for the 
American Linear Collider Physics Group (http://physics.uoregon.edu/~jimbrau/LC/ALCPG/) 
since 2002. I am also a member of the ALCPG's Funding Proposal Coordination Committee 
since 2003.
For the past several years, I have regularly volunteered in the "Ask a Scientist" program 
at Fermilab.