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Hadron-hadron physics at high energy and luminosity

Description: I review some recent theoretical issues relevant to the physics of hadron-hadron collisions. I discuss processes where either energy or luminosity is the most important feature and emphasize the need for experiments at luminosities of 10{sup 33}cm{sup -2}sec{sup 1} if the full range of physics options is to be thoroughly explored. 22 refs., 10 figs.
Date: November 8, 1989
Creator: Hinchliffe, I.
Partner: UNT Libraries Government Documents Department
open access

Geometric continuum regularization of quantum field theory

Description: An overview of the continuum regularization program is given. The program is traced from its roots in stochastic quantization, with emphasis on the examples of regularized gauge theory, the regularized general nonlinear sigma model and regularized quantum gravity. In its coordinate-invariant form, the regularization is seen as entirely geometric: only the supermetric on field deformations is regularized, and the prescription provides universal nonperturbative invariant continuum regularization … more
Date: November 8, 1989
Creator: Halpern, M.B. (California Univ., Berkeley, CA (USA). Dept. of Physics)
Partner: UNT Libraries Government Documents Department
open access

Electroweak symmetry breaking studies at the pp colliders of the 1990's and beyond

Description: Within the conventional framework of a spontaneously broken gauge theory, general principles establish that the electroweak symmetry is broken by a new force that may be weak with associated new quanta below 1 TeV or strong with quanta above 1 TeV. The SSC parameters, ..sqrt..s = 40 TeV and L = 10/sup 33/ cm/sup /minus/2/s/sup /minus/1/, define a minimal facility with assured capability to observe the signals of symmetry breaking by a strong force above 1 TeV. Foreseeable luminosity upgrades wo… more
Date: March 8, 1989
Creator: Chanowitz, Michael S.
Partner: UNT Libraries Government Documents Department
open access

The characterization of Nb/sub 3/Sn superconductors for use in magnets of 19 T and greater

Description: Increased resolution of NMR spectrometry will require the use of very high field Nb/sub 3/Sn superconducting magnets. Here we report the results of our investigation into mechanical and temperature effects on internal-Sn superconductors similar to those proposed for use in a 900 MHz, 21 T NMR magnet system. Thermal precompression was found to be about 0.225%, and the irreversible strain was about 0.8%. Fatigue degradation was not observed at cyclic intrinsic strains below 0.575%. Additions of r… more
Date: August 8, 1989
Creator: Summers, L. T.; Strum, M. J. & Miller, J. R.
Partner: UNT Libraries Government Documents Department
open access

Observation of excited H/sup 0/ atoms produced by relativistic H/sup /minus// ions in carbon and formvar foils

Description: We have measured the relative yield of several low-lying excited states of neutral hydrogen atoms produced by the passage of 226-MeV and 581-MeV H/sup /minus// ions through thin carbon foils and a tilted formvar foil. The relative yields of H/sup /minus///sub /asterisk//(n = 2,3, 4) were measured for 17 different carbon foils ranging in thickness from 662 /angstrom/ to 5386 /angstrom/ at 581 MeV. The relative yield of H/sup 0//sup /asterisk//(n = 2) was also measured for these carbon foils at 2… more
Date: February 8, 1989
Creator: Mohagheghi, A. H.; Bryant, H. C.; Harris, P. G.; Tang, C. Y.; Quick, C. R.; Reeder, R. A. et al.
Partner: UNT Libraries Government Documents Department
open access

The International Thermonuclear Experimental Reactor (ITER): Design and materials selection

Description: The success of ITER relies on aggressive design of the superconducting magnet systems. This design emphasized high radiation-damage tolerance, acceptance of high nuclear heat loads, and high operational stresses in the Toroidal Field (TF) magnets. The design of the Central Solenoid (CS) magnets, although they will be well shielded from the plasma, is equally aggressive due to the need for very high magnetic fields (14 T) and long term operation at high cyclic stresses. Success of these magnet d… more
Date: August 8, 1989
Creator: Summers, L. T.; Miller, J. R. & Heim, J. R.
Partner: UNT Libraries Government Documents Department
open access

A new model for solvent extraction in columns

Description: A new model was developed for analyzing solvent extraction processes carried out in columns. Each column is treated as a series of well-defined equilibrium stages where the backmixing (other-phase carryover) between stages can be large. By including all mass transfer effects in the backmixing value, the same number of stages can be used for all extracted components no matter what their distribution coefficients. This greatly simplifies the calculations required when modeling multicomponent solv… more
Date: December 8, 1989
Creator: Leonard, R. A.; Regalbuto, M. C.; Chamberlain, D. B. & Vandegrift, G. F.
Partner: UNT Libraries Government Documents Department
open access

Log(s) physics results from CDF

Description: The Collider Detector at Fermilab (CDF) is a large, azimuthally symmetric detector designed to study {bar p}p interactions at the Fermilab Tevatron Collider. Results are presented from data taken with a minimum bias trigger at {radical}s = 630 and 1800 GeV during the 1987 run. The topics include the current analysis of dn/d{eta} and some very preliminary results on short range pseudorapidity correlations and Bose-Einstein correlations. 7 refs., 5 figs., 2 tabs.
Date: November 8, 1989
Partner: UNT Libraries Government Documents Department
open access

Application of analytical methods for jointed rock as part of a drift design methodology for the Yucca Mountain Project

Description: The Yucca Mountain Project, managed by the Nevada Operations Office of the US Department of Energy (DOE), is examining the feasibility of siting a repository for high-level nuclear waste at Yucca Mountain, on and adjacent to the Nevada Test Site. Excavation stability will be required during construction, waste emplacement, retrieval (if required), and closure, covering a period of approximately 100 years. In order to incorporate a means of evaluating excavation stability in the design process, … more
Date: December 8, 1989
Creator: Costin, L. S.; Bauer, S. J. & Hardy, M. P.
Partner: UNT Libraries Government Documents Department
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