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AbstractAbstract
[en] A gas purification system for use with a neutrino detector constructed of extruded polypropylene flash chambers is described. A volume of 90% Ne-10% He gas equivalent to the total volume of the detector (50 m3) can be purified every thirty minutes. (orig.)
Record Type
Journal Article
Journal
Nucl. Instrum. Methods Phys. Res; ISSN 0029-554X; ; v. 193(3); p. 457-461
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AbstractAbstract
[en] We describe a system used to monitor the output of 640 high voltage pulsers in a flash chamber neutrino detector. The device is designed to detect the most common failure modes of spark gap switched high voltage pulsers: failed capacitors and misfiring spark gaps. (orig.)
Record Type
Journal Article
Journal
Nucl. Instrum. Methods Phys. Res; ISSN 0029-554X; ; v. 192(2/3); p. 325-329
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AbstractAbstract
[en] We present cross-section measurements for inclusive kaon charge exchange, (K-,p)→(K-bar0,X), at 68, 116, and 176 GeV/c in the kinematic region x>0.7 and -t<1.3 (GeV/c)2. The results are in excellent agreement with the predictions of triple-Regge theory and for the first time confirm the dominance of the Regge-Regge-Pomeron terms
Primary Subject
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Physical Review Letters; ISSN 0031-9007; ; v. 46(21); p. 1358-1361
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BASIC INTERACTIONS, BOSONS, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, GEV RANGE, HADRON-HADRON INTERACTIONS, HADRONS, INFORMATION, INTERACTIONS, KAON-NUCLEON INTERACTIONS, KAON-PROTON INTERACTIONS, KAONS, MESON-BARYON INTERACTIONS, MESON-NUCLEON INTERACTIONS, MESONS, NUMERICAL DATA, PARTICLE INTERACTIONS, PSEUDOSCALAR MESONS, STRANGE PARTICLES, STRONG INTERACTIONS
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AbstractAbstract
[en] We have measured the polarization of Λ's in inclusive pp and K-p reactions and of Lambda-bar's in p-barp interactions at a beam momentum of 176 GeV/c. Data were taken in the beam fragmentation region with hyperon transverse momenta from 0.2 to 1.5 GeV/c. The p-bar-2 produced Lambda-bar's have the same magnitude and sign of polarization as the p-2 produced Λ's whereas the Λ's from K-p interactions are more highly polarized and in the opposite direction
Primary Subject
Record Type
Journal Article
Journal
Country of publication
ANTIBARYONS, ANTIHYPERONS, ANTIMATTER, ANTIPARTICLES, BARYON-BARYON INTERACTIONS, BARYONS, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, GEV RANGE, HADRON-HADRON INTERACTIONS, HADRONS, HYPERONS, INTERACTIONS, KAON-NUCLEON INTERACTIONS, KAON-PROTON INTERACTIONS, LINEAR MOMENTUM, MATTER, MESON-BARYON INTERACTIONS, MESON-NUCLEON INTERACTIONS, NUCLEON-NUCLEON INTERACTIONS, PARTICLE INTERACTIONS, PROTON-NUCLEON INTERACTIONS, STRANGE PARTICLES
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AbstractAbstract
[en] We describe a digital delay-line readout scheme for beam-line multiwire proportional chambers used at the Fermi National Accelerator Laboratory. (orig.)
Record Type
Journal Article
Journal
Nucl. Instrum. Methods Phys. Res; ISSN 0029-554X; ; v. 192(2/3); p. 331-335
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Jan, M.R.; Grannis, P.; Jones, B.D.; Lipman, N.H.; Owen, D.P.; Peterson, V.Z.; Toner, W.T.
Science Research Council, Chilton (UK). Rutherford Lab.1975
Science Research Council, Chilton (UK). Rutherford Lab.1975
AbstractAbstract
[en] A search has been made for the decay eta→π0e+e- in an optical spark chamber experiment at the Rutherford Laboratory. The observations are consistent with no events being seen and give an upper limit. Rate (eta→π0e+e-)/Rate (eta→ALL)<4.5x10-5(90%C.L.). (author)
Primary Subject
Source
1975; 8 p
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Report
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AbstractAbstract
[en] The decay eta→π0e+e- has been looked for in an optical spark chamber experiment at the Rutherford Laboratory. The observations are consistent with no events being seen and give an upper limit rate (eta→π0e+e-)/rate (eta→all) <4.5 x 10-5 (90%C.L.). (Auth.)
Primary Subject
Record Type
Journal Article
Journal
Phys. Lett., B; v. 59(1); p. 99-102
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Jane, M.R.; Grannis, P.; Jones, B.D.; Lipman, N.H.; Owen, D.P.; Peterson, V.Z.; Toner, W.T.
Science Research Council, Chilton (UK). Rutherford Lab.1975
Science Research Council, Chilton (UK). Rutherford Lab.1975
AbstractAbstract
[en] In an optical spark chamber experiment a sample has been obtained of 80 eta Dalitz decays (eta→e+e-γ) and the eta electromagnetic form factor has been measured to be F(X)=1.0-(0.22+-0.45)X, where X=Msub(ee)sup(2)/Msub(eta)sup(2), and the branching ratio (eta→e+e-γ)/(eta→π+π-π0)=(0.0082+-0.0020). (author)
Primary Subject
Source
1975; 6 p
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Report
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AbstractAbstract
[en] In an optical spark chamber experiment a sample of 80 eta Dalitz decays (eta→e+e-γ) have been obtained and the eta electromagnetic form factor has been measured to be F(X)=1.0 - (0.22+-0.45)X, where X=M2sub(ee)/M2sub(eta), and the branching ratio (eta→e+e-γ)/eta→π+π-π0)=(0.0082+-0.0020). (Auth.)
Primary Subject
Record Type
Journal Article
Journal
Phys. Lett., B; v. 59(1); p. 103-105
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AbstractAbstract
No abstract available
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Journal Article
Journal
Nuclear Instruments and Methods; v. 115(2); p. 435-443
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