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College of Arts and Sciences

Elementary Particle / High Energy Physics


particlesThe Indiana University High Energy Theory group carries out research in three broad areas. Steve Gottlieb is a member of the MILC collaboration, and studies the properties of hadronic particles using Lattice QCD. Recent breakthroughs in this technique have allowed an unprecedented levels of accuracy in the prediction of hadronic properties. Alan Kostelecky is one of the world's leading authorities in the study of violations of Lorentz and CPT symmetries, and extensions to the Standard Model of particle physics. Mike Berger conducts theoretical studies over a broad range of topics that includes supersymmetry, cosmology, and collider phenomenology.


The Indiana University Experimental High Energy Physics program provides a broad range of research opportunities. The energy frontier is currently being explored at Fermilab using the D0 detector, and at the Large Hadron Collider at the CERN laboratory in Europe using the ATLAS detector. In addition, our group conducts measurements of neutrino mass and mixing using the MINOS detector at Fermilab, with future neutrino studies planned using the NOVA detector, also at Fermilab. In addition, our group is the lead institution in the development of the GlueX experiment at Jefferson National Laboratory, which is designed to study exotic states of hadronic matter. Finally, our group is involved in a number of astrophysics projects, including SNAP, which is a future space-based experiment designed to study the nature of 'dark energy', and CREST, which is a Long-Duration Balloon (LDB) experiment designed to study electron production in nearby supernovae remnants.

ATLAS ATLAS is a large general-purpose detector designed to discover the origin of electroweak symmetry breaking and new physics at the 14 TeV (14,000,000,000,000 electron volts) energy. This five story high detector, weighing approximately 7000 tons, is being built by the efforts of more than 1800 physicists from 154 institutions around the world.
D0 The D0 Experiment consists of a worldwide collaboration of scientists conducting research on the fundamental nature of matter. The experiment is located at the world's premier high-energy accelerator, theTevatron Collider, at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, USA.The research is focused on precise studies of interactions of protons and antiprotons at the highest available energies. It involves an intense search for subatomic clues that reveal the character of the building blocks of the universe.
SNAP SNAP (SuperNova/ Acceleration Probe) is a satellite experiment designed to verify the remarkable cosmological discovery that the Universal expansion is accelerating, and to determine the nature and evolution of the “dark energy” driving this acceleration. Recent measurements carried out by the Supernova Cosmology Project (SCP) and the High-Z Supernova team have made the startling discovery that the expansion of the universe is accelerating.
MINOS MINOS (Main Injector Neutrino Oscillation Search) is a Fermilab experiment designed to study neutrino oscillations in the  Delta m 2 region in which the SuperK and MACRO experiments have previously reported strong evidence for neutrino mixing.  MINOS is a long baseline neutrino oscillation experiment, with a near detector site at Fermilab and far site in the Soudan Laboratory, 735 km from Fermilab.
NOVA The NOVA experiment is the next phase of the NuMI longbaseline neutrino program at Fermilab. NOvA will search for evidence of oscillations of muon neutrinos to electron neutrinos. This link between solar and atmospheric neutrino oscillations holds the key to determining the neutrino mass hierarchy and searches for CP violation in the leption sector.
GlueX The GlueX Collaboration consists of about 100 physicists from 25 institutions in countries. The goal of this experiment is to map out the spectrum of exotic hybrid mesons -- the 'smoking gun' signature for gluonic excitations. The crucial feature is using linearly polarized photons to produce these states -- photons are expected to be particularly effective in producing exotic hybrids.
CREST CREST is a balloon-borne instrument designed to measure the cosmic ray electron spectrum over an energy range in which the effect of the spatial distribution of local sources is expected to cause dramatic departures from a power law energy spectrum. The instrument identifies UHE electrons through observation of the characteristic linear trail of synchrotron gamma rays generated as the electron passes through the Earth’s magnetic field.