W. E. Sondheim
Los Alamos National Laboratory
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Featured researches published by W. E. Sondheim.
Physical Review Letters | 1999
M. Vasiliev; M. E. Beddo; C. N. Brown; T. A. Carey; T. H. Chang; W. E. Cooper; C. A. Gagliardi; G. T. Garvey; D. F. Geesaman; E. A. Hawker; X. He; L. Isenhower; Daniel M. Kaplan; S. Kaufman; D. D. Koetke; W. M. Lee; M. J. Leitch; P. L. McGaughey; J. M. Moss; B. A. Mueller; V. Papavassiliou; J. C. Peng; G. Petitt; P. E. Reimer; M. E. Sadler; W. E. Sondheim; P. W. Stankus; R. S. Towell; R. E. Tribble; J. C. Webb
A precise measurement of the ratios of the Drell-Yan cross section per nucleon for an 800 GeV/{ital c} proton beam incident on Be, Fe, and W targets is reported. The behavior of the Drell-Yan ratios at small target-parton momentum fraction is well described by an existing fit to the shadowing observed in deep-inelastic scattering. The cross-section ratios as a function of the incident-parton momentum fraction set tight limits on the energy loss of quarks passing through a cold nucleus. {copyright} {ital 1999} {ital The American Physical Society}
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1993
E. Barberis; J. G. Boissevain; N. Cartiglia; J.A. Ellison; P. Ferguson; J.K. Fleming; K. Holzscheiter; S. Jerger; D. Joyce; J. Kapustinsky; J. Leslie; C. Lietzke; J. A. J. Matthews; A. P. T. Palounek; D. Pitzl; W. Rowe; H. Sadrozinski; D. Skinner; W.F. Sommer; W. E. Sondheim; S. Wimpenny; Hans Ziock
Abstract Motivated by the large particle fluences anticipated for the SSC and LHC, we are performing a systematic study of radiation damage to silicon microstrip detectors. Here we report radiation effects on detectors cooled to 0°C (the proposed operating point for a large SSC silicon tracker) including leakage currents and change in depletion voltage. We also present results on the annealing behavior of the radiation damage. Finally, we report results of charge collection measurements of the damaged detectors made with an 241 Am α source.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1985
J. Kapustinsky; R.M. DeVries; N.J. DiGiacomo; W. E. Sondheim; J. W. Sunier; H. Coombes
Abstract We report on the development of a compact, inexpensive and fast light pulser system designed to set up the timing of scintillators in a medium energy physics spectrometer.
Physical Review D | 2001
R. S. Towell; P. L. McGaughey; E. A. Hawker; M. E. Sadler; B. K. Park; M. L. Brooks; D. M. Lee; R. E. Tribble; J. D. Bush; M. E. Beddo; Y. C. Wang; T. H. Chang; B. A. Mueller; Paul E. Reimer; W. M. Lee; D. F. Geesaman; T. A. Carey; X. He; S. Kaufman; D. D. Koetke; C. A. Gagliardi; P. Kirk; P. W. Stankus; G. R. Young; Z. F. Wang; T. C. Awes; J. M. Moss; W. E. Sondheim; Vasilev; M. J. Leitch
Measurements of the ratio of Drell-Yan yields from an 800 \rm{GeV/c} proton beam incident on liquid hydrogen and deuterium targets are reported. Approximately 360,000 Drell-Yan muon pairs remained after all cuts on the data. From these data, the ratio of anti-down (
Physical Review Letters | 2008
L. Y. Zhu; P. E. Reimer; B. A. Mueller; T. C. Awes; M. L. Brooks; C. N. Brown; J. D. Bush; T. A. Carey; T. H. Chang; W. E. Cooper; C. A. Gagliardi; G. T. Garvey; D. F. Geesaman; E. A. Hawker; X. He; D. Howell; L. Isenhower; Daniel M. Kaplan; S. Kaufman; S. Klinksiek; D. D. Koetke; D. M. Lee; W. M. Lee; M. J. Leitch; N. Makins; P. L. McGaughey; J. M. Moss; P. M. Nord; V. Papavassiliou; B. K. Park
\bar{d}
Physics Letters B | 2001
Ian Gardner Bearden; H. Bøggild; J. G. Boissevain; P.H.L. Christiansen; L. Conin; J. Dodd; B. Erazmus; S. Esumi; C. Fabjan; D. Ferenc; D. E. Fields; A. Franz; J.J. Gaardhøje; A.G. Hansen; O. Hansen; D. Hardtke; H. W. van Hecke; E.B. Holzer; T. J. Humanic; P. Hummel; B.V. Jacak; R. Jayanti; K. Kaimi; M. Kaneta; T. Kohama; M. Kopytine; M. Leltchouk; A. Ljubicic; B. Lö; N. Maeda
) to anti-up (
Physical Review C | 1999
Bo; H. ggild; K.H. Hansen; J. G. Boissevain; D. E. Fields; M. Sarabura; J. Simon-Gillo; W. E. Sondheim; J. P. Sullivan; H. W. van Hecke; J. Dodd; M. Leltchouk; M. Potekhin; W. Willis; S. Esumi; N. Maeda; S. Nishimura; A. Sakaguchi; T. Sugitate; Y. Sumi; C. Fabjan; A. Franz; F. Piuz; G. Poulard; T. J. Humanic; S.U. Pandey; B. V. Jacak; H. Kalechofsky; Y.Y. Lee; B. Loerstad
\bar{u}
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2003
S. H. Aronson; J. Bowers; J. Chiba; G. T. Danby; A. Drees; O. Fackler; A. Franz; J.P. Freidberg; W. Guryn; A. Harvey; T. Ichihara; J. W. Jackson; R. Jayakumar; S. Kahn; V. Kashikhin; P. J. Kroon; M. Libkind; M. Marx; W. Meng; F. Messer; S. Migluolio; I. D. Ojha; R. Prigl; G. Riabov; R. Ruggiero; N. Saito; R. Schleuter; Y. Severgin; A. Shajii; V. Shangin
) quark distributions in the proton sea is determined over a wide range in Bjorken-
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1986
P. L. McGaughey; N.J. DiGiacomo; W. E. Sondheim; J. W. Sunier; Y. Yariv
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Physics Letters B | 1999
H. Bøggild; J. G. Boissevain; L. Conin; J. Dodd; B. Erazmus; S. Esumi; C. Fabjan; D. E. Fields; A. Franz; K.H. Hansen; E.B. Holzer; T. J. Humanic; B. V. Jacak; R. Jayanti; H. Kalechofsky; Y.Y. Lee; M. Leltchouk; B. Lörstad; N. Maeda; L. Martin; A. Medvedev; A. Miyabayashi; M. Murray; S. Nishimura; G. Paić; S.U. Pandey; F. Piuz; J. Pluta; V. Polychronakos; M. Potekhin
. These results confirm previous measurements by E866 and extend them to lower
