排序方式: 共有19条查询结果,搜索用时 15 毫秒
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Larson KD Noble AJ Bassalleck B Burkhardt H Fickinger WJ Hall JR Hallin AL Hasinoff MD Horvath D Jones PG Lowe J McIntyre EK Measday DF Miller JP Roberts BL Robinson DK Sakitt M Salomon M Stanislaus S Waltham CE Warner TM Whitehouse DA Wolfe DM 《Physical review D: Particles and fields》1993,47(3):799-810
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P. Schwaller M. Pepin B. Favier C. Richard-Serre D.F. Measday P.U. Renberg 《Nuclear Physics A》1979,316(3):317-344
Proton total cross sections have been measured for the nuclei 1H, 2H, 4He, 9Be, C and O from 180 to 560 MeV (610 to 1170 MeV/c). The standard transmission technique was used with a resulting total error of 1 % to 2 %. Statistical errors were small (< 1 %) and the major contribution to the final error comes from uncertainties in applying the correction for Coulomb-nuclear interference in elastic scattering at small angles. For 4He, 9Be, 12C. and 16O this experiment also gives new information on the real part of the spin-independent forward scattering amplitude for proton-nucleus elastic scattering. Total cross sections have been calculated using a Glauber model approach and poor agreement with the data is obtained, even for deuterium. 相似文献
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N. P. Hessey E. C. Booth W. J. Fickinger K. P. Gall M. D. Hasinoff D. Horváth J. Lowe E. K. McIntyre D. F. Measday J. P. Miller A. J. Noble B. L. Roberts D. K. Robinson M. Sakitt M. Salomon D. A. Whitehouse 《Zeitschrift fur Physik C Particles and Fields》1989,42(2):175-183
We have measured the weak radiative decay branching ratio (∑ + →pγ)/(∑ + →pπ0). The experiment was carried out at Brookhaven National Laboratory using a low-energy separatedK ? beam stopping in liquid hydrogen. The∑ + was tagged by observing the pion fromK ? K + p→∑ +π? in a range telescope, and the gamma was detected in a segmented NaI detector. The result is (2.81±0.39 ?0.43 +0.21 )×10?3, which is consistent with previous measurements. This corresponds to a branching ratio for (∑ + →pγ)/(∑ + → all) of (1.45±0.20 ?0.22 +0.11 )×10?3, where the quoted errors are statistical and systematic, respectively. A total of 408 signal events were observed, doubling the previous world total. 相似文献
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D. F. Measday 《Czechoslovak Journal of Physics》1992,42(11):1231-1237
A significant improvement in the resolution of hypernuclear levels could be attained by studying the (K–,
0) reaction at rest. The new LAMPF neutral meson spectrometer can attain a 0 energy resolution of 200 keV. It is shown that, even today, an experiment is feasible and would shed significant light on our understanding of hypernuclei. 相似文献
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