Observation of parity violating effects in the polarized thermal neutron total and radiative capture cross sections of <sup>117</sup>Sn and <sup>139</sup>La期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Observation of parity violating effects in the polarized thermal neutron total and radiative capture cross sections of ¹¹⁷Sn and ¹³⁹La

Authors:	EA Kolomensky VM Lobashev AN Pirozhkov LM Smotritsky NA Titov VA Vesna

Affiliation:	1. Leningrad Nuclear Physics Institute, Gatchina, Leningrad 188350, USSR;2. Institute of Nuclear Research, Academy of Sciences of the USSR, Moscow 117312, USSR

Abstract:	Parity violating effects in the transmission and radiative capture of longitudinally polarized thermal neutrons have been observed for ¹¹⁷Sn and ¹³⁹La targets. Helicity dependent asymmetries a = 10⁶ (σ⁺-? σ^?)/(σ⁺ + σ^?) were found in the total cross section of ¹¹⁷Sn (a = 6.2 ± 0.7) and $^{139} La (a = 9.0 ± 1.4)$ , and also in the (n, γ) cross section of ¹¹⁷Sn (a = 22.6 ± 1.9) and of ¹³⁹La (a = 16.1 ± 2.0).

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