Crystal Barrel Results on Two-Body Decays of the Scalar Glueball

The Crystal Barrel Collaboration observes scalar meson resonances in $\bar p p$ annihilation. Based on the measurements and partial wave analyses these are candidates for the $^3$P$_0$ groundstate nonet. The supernummerary $f_0(1500)$ resonance is identified as a scalar groundstate glueball. Important information for its characterization comes from the decay pattern into pseudoscalar and scalar mesons. Data on kaonic decays in the mass region up to 1700 MeV are now avaible at Crystal Barrel. New analysis results are presented.Comment: 5 pages, Latex, 3 eps figures, talk presented at EPS-HEP'97 conference in Jerusalem, Israel, 19-26 Aug. 199

A Trip to the Beginning of the Universe with the Large Hadron Collider

Slides from a presentation given at the Science Forum of the University of Tennessee. It discusses the physics program of the Large Hadron Collider in general terms. Serves as introductory material to the field

Diamond Detector Beam Tests

Photos of Application and Tests of diamond pixel detectors at UTK

High Energy Particle Physics at the University of Tennessee

Talk given at the Governor\u27s school in 2009. It is an introduction to particle physics

Studies of Mono-Crystalline CVD Diamond Pixel Detectors

Proceedings of a presentation at the International Pixel 2010 Conference, Grindelwald, Switzerland

Observation of the first Bs--\u3e J/Psi Phi Event in CMS

Presentation for the International Conference on High Energy Physics, July 2010, Paris, France. The first reconstructed decay of a Bs particle in CMS that is relevant for finding information to explain the matter anti-matter asymmetry in the Universe

Diamond Particle Detectors

Poster presented at the IEEE Conference 2010 in Knoxville. It shows results for charged particle tracking using single-crystalline diamond pixel detectors

Note on Scalar Mesons

Review article about the light scalar mesons, experimental and theoretical advances during the previous two years. The nature of several scalar mesons is controversial and they include exotic objects like glue-balls. The note is published in the Review of Particle Properties

Accuracy and limitations of the bond polarizability model in modeling of Raman scattering from molecular dynamics simulations

Calculation of Raman scattering from molecular dynamics (MD) simulations requires accurate modeling of the evolution of the electronic polarizability of the system along its MD trajectory. For large systems, this necessitates the use of atomistic models to represent the dependence of electronic polarizability on atomic coordinates. The bond polarizability model (BPM) is the simplest such model and has been used for modeling the Raman spectra of molecular systems but has not been applied to solid-state systems. Here, we systematically investigate the accuracy and limitations of the BPM parameterized from density functional theory (DFT) results for a series of simple molecules such as CO2, SO2, H2S, H2O, NH3, and CH4, the more complex CH2O, CH3OH and CH3CH2OH and thiophene molecules and the BaTiO3 and CsPbBr3 perovskite solids. We find that BPM can reliably reproduce the overall features of the Raman spectra such as shifts of peak positions. However, with the exception of highly symmetric systems, the assumption of non-interacting bonds limits the quantitative accuracy of the BPM; this assumption also leads to qualitatively inaccurate polarizability evolution and Raman spectra for systems where large deviations from the ground state structure are present