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in creator/contributor: "Schwitters, R. F."  
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The Superconducting Super Collider: A status report

Description: The design of the Superconducting Super Collider (SSC) is briefly reviewed, including its key machine parameters. The scientific objectives are twofold: (1) investigation of high-mass, low-rate, rare phenomena beyond the standard model; and (2) investigation of processes within the domain of the standard model. Machine luminosity, a key parameter, is a function of beam brightness and current, and it must be preserved through the injector chain. Features of the various injectors are discussed. T… more
Date: April 1, 1993
Creator: Schwitters, R. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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OBSERVATION OF THE {eta}{sub c} (2980) PRODUCED IN THE RADIATIVE DECAY OF THE {psi}' (3684)

Description: In a study of {psi}'(3684) radiative decays with the Mark II detector at SPEAR, we observe the decay sequence {psi}' {yields} {gamma}{eta}{sub c}(2980), with the {eta}{sub c}(2980) decaying into several completely reconstructed hadronic modes. We obtain a mass M = 2980 ± 8 MeV / c{sup 2} and a width {Gamma} < 40 MeV / c{sup 2} (90% confidence level), and present estimates of some of the decay branching ratios.
Date: July 1, 1980
Creator: Himel, T. M.; Trilling, G. H.; Abrams, G. S.; Alam, M. S.; Blocker, C. A.; Blondel, A. P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Energy calibration of SPEAR by g-2 precession

Description: We have checked the absolute energy calibration of SPEAR near 3.6 GeV to an accuracy of +- 0.02% by measuring the g-2 precession frequency of a stored positron beam at a fixed machine energy. This is considerably more accurate than the +- 0.01% systematic uncertainty assigned to the energy calibration on the basis field measurements of the SPEAR magnets. Alternatively, these results can be interpreted as a large-..gamma.. (..gamma.. /approximately/ 7055) measurement of the positron magnetic ano… more
Date: September 1, 1979
Creator: Fischer, G. E.; Gustavson, D. B.; Johnson, J. R.; Murray, J. J.; Phillips, T. J.; Prepost, R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resonance production by two-photon interactions at SPEAR

Description: Two-photon interactions have been studied with the SLAC-LBL Mark II magnetic detector at SPEAR. The cross section for {eta}' production by the reaction e{sup +}e{sup -} {yields} e{sup +}e{sup -}{eta}' has been measured at beam energies from 2.0 GeV to 3.7 GeV. The radiative width {Lambda}{sub {gamma}{gamma}}({eta}') has been determined to be 5.8 {+-} 1.1 keV ({+-}20% systematic uncertainty). Upper limits on the radiative widths of the f(1270), A{sub 2}(1310) and f'(1515) tensor mesons have been… more
Date: June 1, 1981
Creator: Jenni, P.; Burke, D. L.; Telnov, V.; Alam, M. S.; Boyarski, A. M.; Breidenbach, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Background sources at PEP

Description: Important sources of background for PEP experiments are studied. Background particles originate from high-energy electrons and positrons which have been lost from stable orbits, ..gamma..-rays emitted by the primary beams through bremsstrahlung in the residual gas, and synchrotron radiation x-rays. The effect of these processes on the beam lifetime are calculated and estimates of background rates at the interaction region are given. Recommendations for the PEP design, aimed at minimizing backgr… more
Date: January 1, 1988
Creator: Lynch, H.; Schwitters, R. F. & Toner, W. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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