Now showing items 1-20 of 70

  • [2012-05-08] mT Dependence of Boson Interferometry in Heavy Ion Collisions at the CERN SPS 

    Fields, Douglas E.; Beker, H.; Boggild, H.; Boissevain, J.; Cherney, M.; Dodd, J.; Esumi, S.; Fabjan, C.W.; Franz, A.; Hansen, K. H.; Holzer, E.B.; Humanic, T. J.; Jacak, B.V.; Jayanti, R.; Kalechofsky, H.; Kobayashi, T.; Kvatadze, R.; Lee, Y.Y.; Leltchouk, M,; Lorstad, B.; Maeda, N.; Medvedev, A.; Miake, Y.; Miyabayashi, A.; Murray, M.; Nagamiya, S.; Nishimura, S.; Noteboom, E.; Pandey, S.U.; Piuz, F.; Polychronakos, V.; Potekhin, M.; Poulard, G.; Sakaguchi, A.; Sarabura, M.; Shigaki, K.; Simon-Gillo, J.; Sondheim, W.; Sugitate, T.; Sullivan, J. P.; Sumi, Y.; Van Hecke, H.; Willis, W. J.; Wolf, K.; Xu, N.
    First results of the mT dependence of π+π+ and K+K+ correlations from S+Pb collisions at 200 GeV /c per nucleon measured by the focusing spectrometer of the NA44 experiment at CERN are presented. Multidimensional fits ...
  • [2012-05-08] Relationship between correlation function fit parameters and source distributions 

    Fields, Douglas E.; Sullivan, J. P.; Simon-Gillo, J.; Van Hecke, H.; Jacak, B. V.; Xu, N.
    We review the method of two-particle intensity interferometry, define appropriate techniques to make the comparison between RQMD source distributions and correlation function fit parameters, and compare these to results ...
  • [2012-05-08] Large, light, high-acceptance CSC chambers for the PHENIX muon detector using a honeycomb panel design 

    Fields, Douglas E.; Armijo, V.; Atencio, L.; Bassalleck, B.; Behrendt, J.; Brooks, M.L.; Clark, D.; Dinesh, B.V.; Klinksiek, S.; Lee, D.M.; Lowe, J.; Sondheim, W.; Stuart, J.; Wang, X.F.
    The muon tracking system for the PHENIX detector uses cathode strip chambers (CSC) for the tracking detectors. These detectors must provide 58 micron resolution at each station to give satisfactory mass resolution of the ...
  • [2012-05-08] Large CSC chamber for the PHENIX muon detector with ultra thin cathode foils 

    Fields, Douglas E.; Lee, D. M.; Armijo, V.; Atencio, L.; Brooks, M. L.; Clark, D.; Chen, Z.; Dinesh, B. V.; Kinnison, W. W.; Hart, G.; Matousek, H.; Morris, C.; Murray, M. M.; Sondheim, W.; Wang, Y.; Wang, Z.
    The muon tracking system for the PHENIX detector at RHIC uses cathode strip chambers (CSC) for the tracking detectors. These detectors must provide 100 μm resolution per measurement plane to give satisfactory mass resolution ...
  • [2012-05-08] Proton and Antiproton Distributions at Mid-Rapidity in Proton-Nucleus and Sulphur-Nucleus Collisions 

    Fields, Douglas E.; Bearden, I. G.; Boggild, H.; Boissevain, J.; Dodd, J.; Esumi, S.; Fabjan, C. W.; Franz, A.; Holzer, E. B.; Humanic, T. J.; Jacak, B. V.; Jayanti, R.; Kalechofsky, H.; Lee, Y. Y.; Leltchouk, M.; Lorstad, B.; Maeda, N.; Medvedev, A.; Miyabayashi, A.; Murray, M.; Nishimura, S.; Pandey, S. U.; Piuz, F.; Polychronakos, V.; Potekhin, M.; Poulard, G.; Sakaguchi, A.; Sarabura, M.; Spegel, M.; Simon-Gillo, J.; Sondheim, W.; Sugitate, T.; Sullivan, J. P.; Sumi, Y.; Van Hecke, H.; Willis, W. J.; Wolf, K.; Xu, N.
    Experiment NA44 has measured proton and antiproton distributions at midrapidity in sulphur and proton collisions with nuclear targets at 200 and 450 GeV/c per nucleon respectively. The inverse slopes of transverse mass ...
  • [2012-04-27] High energy Pb+Pb collisions viewed by pion interferometry 

    Fields, Douglas E.; Bearden, I. G.; Boggild, H.; Boissevain, J.; Dodd, J.; Erazmus, B.; Esumi, S.; Fabjan, C. W.; Ferenc, D.; Franz, A.; Gaardhoje, J.; Hamelin, M.; Hansen, A. G.; Hansen, O.; Hardtke, D.; Van Hecke, H.; Holzer, E. B.; Humanic, T. J.; Hummel, P.; Jacak, B. V.; Jayanti, R.; Kaimi, K.; Kaneta, M.; Kohama, T.; Kopytine, M.; Leltchouk, M.; Ljubicic, A. Jr.; Lorstad, B.; Maeda, N.; Malina, R.; Medvedev, A.; Murray, M.; Ohnishi, H.; Paic, G.; Pandey, S. U.; Piuz, F.; Pluta, J.; Polychronakos, V.; Potekhin, M.; Poulard, G.; Reichhold, D.; Sakaguchi, A.; Simon-Gillo, J.; Schmidt-Sorensen, J.; Sondheim, W.; Spegel, M.; Sugitate, T.; Sullivan, J. P.; Sumi, Y.; Willis, W. J.; Wolf, K. L.; Xu, N.; Zachary, D. S.
    Two-pion correlations from Pb1Pb collisions at 158 GeV/c per nucleon are measured by the NA44 experiment at CERN. Multidimensional fits characterize the emission volume, which is found to be larger than in S-induced ...
  • [2012-05-09] Experimental determination of the complete spin structure for p¯p→ Λ¯Λ at p{p¯}= 1.637 GeV/c 

    Fields, Douglas E.; Paschke, K. D.; Quinn, B.; Berdoz, A.; Franklin, G. B.; Khaustov, P.; Meyer, C. A.; Bradtke, C.; Gehring, R.; Goertz, S.; Harmsen, J.; Meier, A.; Meyer, W.; Radtke, E.; Reicherz, G.; Dutz, H.; Pluckthun, M.; Schoch, B.; Dennert, H.; Eyrich, W.; Hauffe, J.; Metzger, A.; Moosburger, M.; Stinzing, F.; Wirth, St.; Fischer, H.; Franz, J.; Heinsius, F. H.; Kriegler, E.; Schmitt, H.; Bunker, B.; Hertzog, D.; Jones, T.; Tayloe, R.; Broders, R.; Geyer, R.; Kilian, K.; Oelert, W.; Rohrich, K.; Sachs, K.; Sefzick, T.; Bassalleck, B.; Eilerts, S.; Kingsberry, P.; Lowe, J.; Stotzer, R.; Johansson, T.; Pomp, S.
    The reaction p.p → ^^ → .pπ+pπ− has been measured with high statistics at a beam momentum of pp. = 1.637 GeV/c. The use of a transversely polarized frozen-spin target combined with the self-analyzing property of ^/^ decay ...
  • [2008-09-09] Observation of high-lying resonances in the H- ion 

    Harris, Philip G.
    This dissertation reports the observation of several series of resonances, for which both electrons are in excited states, in the photodetachment cross section of H-. These ‘P doubly-excited states interfere with the ...
  • [2009-01-29] Measurements of low energy nuclear recoil tracks and their implications for directional dark matter detectors 

    Hagemann, Christina
    Directional dark matter detection is needed to unambiguously detect a dark matter particle interaction in a detector. This is due to the fact that only a dark matter signature will have its incoming direction vary ...
  • [2009-01-29] Study of the current-voltage relation for a single C-60 transistor 

    Parmar, Anita
    The beginning of this century saw the pioneering fabrication of a single molecular transistor using a single C60 molecule between gold nanowires, and inspired experimentalists and theorists alike to focus on studying phonon ...
  • [2009-07-09] InAs quantum dot vertical-cavity lasers 

    Albrecht, Alexander R.
    Edge-emitting semiconductor lasers with self-assembled InAs quantum dot (QD) active regions have demonstrated excellent device performance, including low sensitivity to operating temperature and record-low thresholds. In ...
  • [2009-08-27] Applications of statistical mechanics and nonlinear science to ecological phenomena 

    Gonzalez-Palacio, Luis Felipe
    The application of techniques widely used in physics to explain biological phenomena has become a very successful endeavor in the past few decades. Such techniques include, but are not limited to, kinetic equations and ...
  • [2009-08-27] Stimulated Brillouin scattering effects and suppression techniques in high power fiber amplifiers 

    Zmuda, Michael
    This dissertation develops a model for numerical analysis of stimulated Brillouin scattering (SBS) effects and the development of suppression techniques for the realization of increased output power levels for high power ...
  • [2009-08-27] On the sources of astrometric anomalous refraction 

    Taylor, Malinda Suzanne, 1979-
    Over a century ago, astronomers using transit telescopes to determine precise stellar positions were hampered by an unexplained periodic shifting of the stars they were observing. With the advent of CCD transit telescopes ...
  • [2009-08-27] Quantum control of d-dimensional quantum systems with application to alkali atomic spins 

    Merkel, Seth
    In this dissertation I analyze Hamiltonian control of d-dimensional quantum systems as realized in alkali atomic spins. Alkali atoms provide an ideal platform for studies of quantum control due to the extreme precision ...
  • [2009-08-27] Uncovering the origins of spiral structure through the measurement of pattern speeds and their radial variation 

    Meidt, Sharon
    At the intersection of galactic dynamics, evolution and global structure, unresolved issues in the nature and origin of spirals can be addressed through the characterization of the angular speeds of the patterns and their ...
  • [2009-08-27] Statistical mechanics of transport in disordered lattices and reaction-diffusion systems 

    Kalay, Ziya, 1984
    This thesis is the report of a study of several different problems in statistical physics. The first two are about random walks in a disordered lattice, with applications to a biological system, the third is about ...
  • [2009-08-27] Studies of ultra high energy cosmic rays 

    Hague, John Douglas
    In this thesis, analysis tools for understanding the observed spectrum and arrival directions of ultra high energy cosmic rays are developed and applied to both simulated and observed data. Two separate statistical ...
  • [2010-02-09] Optical parametric oscillators for ultra-sensitive intracavity phase measurements 

    Velten, Andreas
    This dissertation describes the simulation design and construction of optical parametric oscillators (OPO) for intracavity interferometry. Intracavity interferometers use two mode-locked pulses oscillating inside a cavity ...
  • [2010-02-09] SPINS : spectral phase interrogation using nonlinear spectra 

    Jilek, Brook
    A novel technique for ultrafast pulse measurement is presented. This technique involves only the measurement of the fundamental, second harmonic, and third harmonic (or other third-order nonlinear) spectra of an ultrafast ...