Theoretical Elementary Particle Physics

Louis J. Clavelli, Ph.D.,  Professor of Physics

 


Another beautiful day in Alabama:


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email :Dr. Louis Clavelli




Professor Clavelli is currently interested in supersymmetry (susy), a theory proposing that, for each particle that exists in nature, there is a partner particle that differs only by an angular momentum 1/2 unit of Planck's constant above or below that of the original particle.

Many theorists believe that, due to supersymmetry, at some super-high energy (near 1016 GeV) the nuclear, electromagnetic, and weak forces have the same strength and fit together in a simple group-theoretic structure. Dr. Clavelli's work explores indications from current experiments that this is in fact the case and attempts to elicit predictions from the theory for experiments at high energy accelerators around the world and for observations in astroparticle physics. Most recently he has proposed that a susy bubble could form in dense stars which would then expand to convert the entire star to a supersymmetric state before cooling and collapsing into a susy black hole. Ultimately the entire universe would be expected to convert to a supersymmetric state . If the higgs structure is favorable , susy atoms and molecules may form.

Professor Clavelli received his bachelor degree from Georgetown University and his doctoral degree from the University of Chicago. Since then he has been employed in teaching and research at a number of universities and national laboratories including Yale, Rutgers, Bordeaux, Bonn, and Fermilab. The co-editor of two books on string theory and author of some 130 articles and conference reports in elementary particle theory, Dr. Clavelli joined the faculty at The University of Alabama in 1985.


Selected Recent Publications:

"Landscape Implications of Extended Higgs Models"

"Ionic Binding in a Susy Background" hep-ph/0611013 with T. Lovorn

"Problems in a Weakless Universe" hep-ph/0609050with R.E. White III

"Neighboring Valley in the String Landscape" hep-ph/0607029 Talk presented at the Susy06 conference, Irvine CA, June 2006

"Gravitational Collapse of a Susy Star" hep-ph/0602024 High Energy Density Physics, jhedp.2006.06.002

"Properties of a Future Susy Universe"hep-th/0508207 International Journal of Modern Physics E, Vol 15, No 6, 1-17, 2006

"Growth of a susy bubble: inhomogeneity effects", hep-ph/0506215, Phys. Rev. D73, 039901 (2006)

"A Susy Phase Transition as Central Engine" , hep-ph/0501075, Talk presented at the workshop on Fundamental Physics from Clusters of Galaxies, Fermilab, December 2004

"A Susy Origin of Gamma Ray Bursts", hep-ph/0410026, presented at the Pascos 2004 Conference, Boston, Aug. 2004

"Electron to selectron pair conversion in a supersymmetric bubble", with I. Perevalova, hep-ph/0409194, Phys. Rev. D71, 055001 (2005)

"A Supersymmetric model of Gamma Ray Bursts", with G. Karatheodoris, hep-ph/0403227, Phys. Rev. D72, 035001 (2005)

"R parity violating decays of the Gluino", with H. Stremnitzer, Phys. Lett. 2003, hep-ph/0308285

"Beyond the Zero-binding Approximatin in Quarkonium", with P. Cox and T. Gajdosik, hep-ph/0210114

"Quarkonium Polarization in Lepton Annihilation", with P. Coulter and T. Gajdosik, hep-ph/0111250,Phys. Lett. 2002

"Parity and Time Reversal in J/Psi Decay", with T. Gajdosik and I. Perevalova, hep-ph/0110076 Phys. Lett. B, 2001

"Upsilon decay into a Pair of b Squarks", with E.L. Berger, hep-ph/0105147, Physics Letters, 2001

"Gaugino Mass Dependence of Electron and Neutron Electric Dipole Moments" with T. Gajdosik and W. Majerotto hep-ph/0007342 ,Physics Letters, 2000

"New Possibilities for a Light Gluino" Contributed paper at the Lepton-Photon Symposium, Stanford, August 9-14, 1999 hep-ph/9908342

"Light Gluino Predictions for Jet Cross Sections in Tevatron Run II" Workshop on Higgs/Susy, Fermilab Nov. 1998 hep-ph/9812340

"Neutrino Masses in R Parity Violating Supersymmetry" with Paul Frampton hep-ph/9811326

"Gluino Contributions to the 3-loop Quark Anomalous Dimension in the Minimal Supersymmetric Standard Model", with Levan Surguladze hep-ph/9806443  Phys. Lett. B446, 153 (1999)

"Virtual Supersymmetric Corrections in e+e- Annihilation", with P.W. Coulter and Levan Surguladze hep-ph/9712547  Mod. Phys. Lett. A13, 1987 (1998)

"Top Quark Analysis and the Light Gluino Scenario", with Gary R. Goldstein hep-ph/9708405  Phys. Rev. D58, 095012 (1998)

"Scaling Violation through Squark and Light Gluino Production", with I. Terekhov hep-ph/9703318  Phys. Lett. B429, 51 (1998)

"Gluino Contribution to the 3-loop QCD beta Function in the Minimal Supersymmetric Standard Model," L. Clavelli, P.W. Coulter, and Levan Surguladze, hep-ph/9611355  Physical Review D55, 4268,(1997).

"Light Gluino Contribution in Hadronic Decays of Z boson and   tauLepton," L. Clavelli and Levan Surguladze, hep-ph/9610493  Physical Review Letters, 78, 1516, (1997).

"Inclusive Jet ET Distributions and Light Gluinos," L. Clavelli and I. Terekhov, hep-ph/9605463  Phys. Rev. Lett. 77, 1941 (1996)

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