Cross section measurement of the π−p→π−π+n reaction near threshold
نویسندگان
چکیده
منابع مشابه
Cross section of the reaction 9Be(γ, n) near threshold
Six kinds of radioisotopes were used to measure cross sections of the "Be(?, n) reaction near its threshold. The results obtained were0.88 5 0.16, 1.33 2 0.24, 1.10 2 0.20, 0.73 5 0.13, 0.47 5 0.09, and 0.18 2 0.04 mb at 1674.7, 1705.2, 1724.9, 1778.9, 1836.0, and 2167.6 keV, respectively. The cross sections measured show a sharp peak near the threshold, and its width is narrower than that obse...
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Using 3.07 pb of data collected in the energy range 0.60–0.97 GeV by CMD-2, about 150 events of the process ee → ππππ have been selected. The energy dependence of the cross section agrees with the assumption of the a1(1260)π intermediate state which is dominant above 1 GeV. For the first time ππππ events are observed at the ρ meson energy. Under the assumption that all these events come from th...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1989
ISSN: 0370-2693
DOI: 10.1016/0370-2693(89)91403-2