My primary research interest is in elementary particle physics
Particle Physics?). Particle physicists
investigate fundamental questions about the structure and behaviour of the
universe. This work provides information about the weak and strong
forces (counterparts to gravity and electromagnetism) and offers
sensitive probes for new fundamental phenomena.
There is growing evidence that discoveries in the next decade may
bring to light new physical phenomena that will shed light on
important mysteries. For example, the matter
asymmetry of the universe tells us two things: there must be large
sources of CP violation we have not yet found and there must be baryon
number violating processes, which are also not yet observed. Also,
the amount of dark matter in the universe is about ten times larger
than the amount of baryonic matter, but no dark matter candidates have
been observed. An unknown force, often called ``dark energy,''
is forcing the universe apart. These are only three examples.
Experiments in this field take a decade or more to design, build,
and carry out. They require the construction of large detectors
and the collaboration of hundreds of scientists.
I work closely with two other Vanderbilt faculty (Professors Johns and
Webster); the activities
of our research group
are funded by the National Science
Our current efforts are on two experiments,
Fermi National Accelerator
(Fermilab), near Chicago, Illinois,
CMS experiment at
in Geneva, Switzerland.
An important aspect of particle physics is the construction
of the large detectors necessary to carry out experiments in the field.
I was in charge of building the outer muon system for
was the group leader for the BTeV muon system.
I am also the principal investigator for a
physicists and computer scientists and engineers
that is investigating real-time
embedded systems that are high performance, heterogenous, fault-tolerant
and fault-adaptive. One specific application that is driving this
research and providing a test platform for it is the trigger and
data acquisition system for the
Motivated by the huge demands for High Performance Computing and
Cyber-Infrastructure in my primary area of research, I
have become involved in efforts to develop HPC/CI tools and
infrastructure. I have co-lead the development and implementation
a campus wide HPC center that brings together campus
researchers in wide variety of disciplines.
I am also collaborating on the
Open Science Grid (OSG) and
International Virtual Data Grid Laboratory
The notion of a globally integrated computation and information
been termed the computational data grid, or grid for short. The
grid will connect the world's computers, databases, instruments,
and people in a seamless web, supporting computation-rich
applications such as wide-area high performance computing,
real-time widely distributed instruments, and data mining.
The OSG and iVDGL projects provide a
platform for the development of
``grid-enabled'' applications and for the testing
and vetting of grid middleware. I am also collaborating
on the development of a
Skim Grid Portal.
This research is supported by the
National Science Foundation
under Grants SCI-0121658 and PHY-0600694.