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Physics Considerations in the Design of NCSX

Description: Compact stellarators have the potential to make steady-state, disruption-free magnetic fusion systems with beta approximately 5% and relatively low aspect ratio (R/<a> < 4.5) compared to most drift-optimized stellarators. Magnetic quasi-symmetry can be used to reduce orbit losses. The National Compact Stellarator Experiment (NCSX) is designed to test compact stellarator physics in a high-beta quasi-axisymmetric configuration and to determine the conditions for high-beta disruption-free… more
Date: October 9, 2002
Creator: Neilson, G. H.; Zarnstorff, M. C.; Ku, L. P.; Lazarus, E. A.; Mioduszewski, P. K.; Fenstermacher, M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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B physics in Run II

Description: Run II at the Tevatron started on March 1, 2001 with a design instantaneous luminosity of 2 x 10{sup 32} cm{sup -2} s{sup -1}. The upgraded D0 detector is expected to collect 2 fb{sup -1} of data at {radical}s = 2.0 TeV in approximately 2 years. The D0 collaboration is planning to make measurements in a number of important areas of B physics, including sin(2{beta}), B{sub s} mixing, the {Lambda}{sub b} lifetime and rare B decays. In this note we describe the upgraded D0 detector and highlights … more
Date: October 7, 2002
Creator: Kuznetsov, Valentin E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CDF Status and B Physics Prospects

Description: With extensive upgrades to the detector and electronics, CDF has started collecting data with Run II of the Tevatron. The enhanced silicon coverage and the use of silicon based tracks in the trigger, make CDF well suited for a broad program of B hadron measurements. We present the current status of the experiment and prospects for measurements in Run II.
Date: October 7, 2002
Creator: Miller, J. Stephen
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Puzzles in hyperon, charm and beauty physics.

Description: Puzzles awaiting better experiments and better theory include: (1) the contradiction between good and bad SU(3) baryon wave functions in fitting Cabibbo theory for hyperon decays, strangeness suppression in the sea and the violation of the Gottfried Sum rule--no model fits all; (2) Anomalously enhanced Cabibbo-suppressed D{sup +} {yields} K*{sup +} (s{bar d}) decays; (3) anomalously enhanced and suppressed B {yields} {eta}{prime} X decays; (4) the OZI rule in weak decays; (5) Vector dominance (… more
Date: October 21, 2002
Creator: Lipkin, H. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Probing physics beyond the SM at Tevatron

Description: Tevatron Experiments: CDF and 6 D0 collected during October 1992 and February 1996 (Run I) a data sample of roughly 120 pb{sup -1} p {bar p} collisions at a center of mass energy {radical}s = 1.8 TeV. A large variety of physical studies have been performed using these data. Current paper reviews last results obtained searching for physics beyond the Standard Model. Direct Supersymmetry (SUSY) searches are not part of this review.
Date: October 14, 2002
Creator: Pagliarone, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Physics Prospects with the JLab 12-GeV upgrade

Description: Increasing the beam energy of the CEBAF accelerator to 12 GeV will greatly expand the physics opportunities to explore the nature of strongly interacting matter. The primary thrusts of the experimental program will include the study of quark confinement and the direct exploration of the quark-gluon structure of hadrons and nuclei in the valence-quark region.
Date: October 1, 2002
Creator: Smith, Elton
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Photon and jet physics at the Collider Detector at Fermilab

Description: We summarize recent Run 1 photon and jet measurements from p{bar b} collisions at {radical}s = 0.63 TeV and 1.8 TeV using data collected at the Collider Detector at Fermilab (CDF). First Run 2 results at {radical}s = 1.96 TeV are also presented together with predictions of the kinematic reach accessible with 15 fb{sup -1} of Run 2 data. Data are compared to the predictions of Quantum Chromodynamics (QCD).
Date: October 25, 2002
Creator: Dittmann, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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QCD physics in Atlas at the large hadron collider.

Description: The Large Hadron Collider (LHC) is a proton-proton collider with a 14 TeV center of mass energy. The design luminosity is 10{sup 34} cm{sup -1}s{sup -1} with beam collisions separated by 25 ns. The initial operation for physics will take place at a luminosity of 10{sup 33}cm{sup -1}s{sup -1} and it is expected that the integrated luminosity delivered in the first year will be 10 fb{sup -1}. This integrated luminosity will result in very large event samples for most processes, for example: {appr… more
Date: October 7, 2002
Creator: Proudfoot, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Top quark physics at the Tevatron results and prospects

Description: The methodology of CDF and D0 top quark analyses and their underlying assumptions are summarized. The CDF and D0 top mass averages, obtained from measurements in several channels and based on about 100 pb{sup -1} of data from p{bar p} collisions at {radical}s = 1.8 TeV collected by each experiment in Run-I, are: M{sub t} = 176.1 {+-} 4.0(stat) {+-} 5.1(syst) GeV/c{sup 2} and M{sub t} = 172.1 {+-} 5.2(stat) {+-} 4.9(syst) Gev/C{sup 2}, respectively. The combined Tevatron measurement of the top q… more
Date: October 16, 2002
Creator: Sliwa, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recent Advances in Indirect Drive ICF Target Physics

Description: In preparation for ignition on the National Ignition Facility, the Lawrence Livermore National Laboratory's Inertial Confinement Fusion Program, working in collaboration with Los Alamos National Laboratory, Commissariat a lEnergie Atomique (CEA), and Laboratory for Laser Energetics at the University of Rochester, has performed a broad range of experiments on the Nova and Omega lasers to test the fundamentals of the NIF target designs. These studies have refined our understanding of the importan… more
Date: October 8, 2002
Creator: Hammel, B.; Lindl, J.; Amendt, P. A.; Bernat, G. W.; Collins, G. W.; Glenzer, S. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ALEGRA: User Input and Physics Descriptions Version 4.2

Description: ALEGRA is an arbitrary Lagrangian-Eulerian finite element code that emphasizes large distortion and shock propagation. This document describes the user input language for the code.
Date: October 1, 2002
Creator: BOUCHERON, EDWARD A.; BROWN, KEVIN H.; BUDGE, KENT G.; BURNS, SHAWN P.; CARROLL, DANIEL E.; CARROLL, SUSAN et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fast Ignition: Physics Progress in the US Fusion Energy Program and Prospects for Achieving Ignition.

Description: Fast ignition (FI) has significant potential advantages for inertial fusion energy and it is therefore being studied as an exploratory concept in the US fusion energy program. FI is based on short pulse isochoric heating of pre-compressed DT by intense beams of laser accelerated MeV electrons or protons. Recent experimental progress in the study of these two heating processes is discussed. The goal is to benchmark new models in order to predict accurately the requirements for full-scale fast ig… more
Date: October 16, 2002
Creator: Key, M. H.; Andersen, C.; Cowan, T.; Fisch, N.; Freeman, R.; Hatchett, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Initiation of a Nuclear Research Program at Fisk University in Cooperation with the Nuclear Physics Group at Vanderbilt University, August 15, 1997 - January 14, 2000

Description: Carrying a spirit of a long history of cooperation in physics education and research between Fisk University and Vanderbilt University, the Nuclear Research Program in the Department of Physics at Fisk University was proposed in 1996 in cooperation with the Nuclear Physics Group at Vanderbilt University. An initial NRP program was commissioned in 1997 with the financial support from DOE. The program offers a great opportunity for students and faculty at Fisk University to directly access experi… more
Date: October 1, 2002
Creator: Collins, W.E. & Hamilton, J.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photon Colliders

Description: A photon collider interaction region has the possibility of expanding the physics reach of a future TeV scale electron-positron collider. A survey of ongoing efforts to design the required lasers and optics to create a photon collider is presented in this paper.
Date: October 7, 2002
Creator: Gronberg, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Positron Annihilation in Insulating Materials

Description: We describe positron results from a wide range of insulating materials. We have completed positron experiments on a range of zeolite-y samples, KDP crystals, alkali halides and laser damaged SiO{sub 2}. Present theoretical understanding of positron behavior in insulators is incomplete and our combined theoretical and experimental approach is aimed at developing a predictive understanding of positrons and positronium annihilation characteristics in insulators. Results from alkali halides and alk… more
Date: October 18, 2002
Creator: Asoka-Kumar, P & Sterne, PA
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High pT inclusive charged hadron spectra from Au+Au collisions at {radical}(s{sub NN}) = 200 Gev

Description: The STAR Collaboration presents new measurements of inclusive charged hadron distributions for p{sub T} < 12 GeV/c from Au+Au collisions at {radical}(s{sub NN}) = 200GeV. Charged hadron suppression at high p{sub T} is similar in shape and magnitude at all centralities to that observed previously at {radical}(s{sub NN}) = 130 GeV for p{sub T} < 6 GeV/c. The ratio of spectra from central and peripheral Au+Au collisions shows that hadron suppression is approximately constant within 6 < p{… more
Date: October 17, 2002
Creator: Klay, Jennifer L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Summary of Parallel Session I: Grid testbeds and applications

Description: This paper is a summary of talks presented at ACAT 2002 in parallel session I on grid testbeds and applications. There were 12 presentations on this topic that show a lot of enthusiasm and hard work by many people in bringing physics applications onto the grid. There are encouraging success stories and also a clear view that the middleware has a way to go until it is as robust, reliable and complete as we would like it to be.
Date: October 10, 2002
Creator: Olson, Douglas L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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New Perspectives on Turbulent Mixing Induced by Rayleigh-Taylor and Richtmyer-Meshkov Instabilities

Description: Turbulent hydrodynamic mixing induced by the Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instabilities occurs in settings as varied as exploding stars (supernovae), inertial confinement fusion (ICF) capsule implosions, and macroscopic flows on fluid dynamics facilities such as shock tubes. We have developed a quantitative description of turbulence from the onset to the asymptotic end-state. Our treatment, based on a combined approach of theory, direct numerical simulation (DNS), and experim… more
Date: October 30, 2002
Creator: Zhou, Y.; Remington, B. A.; Glendinning, S. G.; Dimits, A.; Buckingham, A. C.; Robey, H. F. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heavy flavor production at the Tevatron

Description: The authors discuss some of the results on the measurements of heavy flavor production at the Tevatron. Heavy flavor production can be used to test QCD over a wide range of quark masses (m{sub b} {approx} 4.5 GeV/c{sup 2} to m{sub t} = 174.3 {+-} 5.1 GeV/c{sup 2}). In addition, it is a background that has to be understood to perform physics measurements in the top sector and Higgs searches. The results reported here are performed using the Run1 data collected at Tevatron ({approx} 100 pb{sup -1… more
Date: October 16, 2002
Creator: Sidoni, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Source Parameters from Identified Hadron Spectra and HBT Radii for Au-Au Collisions at (Square Root)SNN=200 GeV in PHENIX

Description: The characteristics of the particle emitting source are deduced from low p{sub T} identified hadron spectra ((m{sub T}-m0) < 1 GeV) and HBT radii using a hydrodynamic interpretation. From the most peripheral to the most central data, the single particle spectra are fit simultaneously for all {pi}{sup {+-}}, K{sup {+-}}, and {bar p}/p using the parameterization in [1] and assuming a linear transverse flow profile. Within the systematic uncertainties, the expansion parameters T{sub fo} and {be… more
Date: October 14, 2002
Creator: Burward-Hoy, J M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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