Search for free decay of negative pions in water and light materials
Search for free decay of negative pions in water and light materials
复制标题
寻找水和轻材料中负介子的自由衰变
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
S. Ovchinnikov
中科院分区：
文献类型：
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作者：
T. Numao;Y. Davydov;J. Poutissou;T. Awes;V. Cianciolo;S. Berridge;W. Bugg;Y. Efremenko;R. Gearhart;S. Ovchinnikov
We report on a search for the free-decay component of {pi}{sup -} stopped in water and light materials. A nonzero value of this would be an indication of anomalous {nu}{sub e} contamination to the {nu}{sub e} and {nu}{sub {mu}} production at stopped-pion neutrino facilities. No free-decay component of {pi}{sup -} was observed in water, Beryllium, and Aluminum, for which upper limits were established at 8.2x10{sup -4}, 3.2x10{sup -3}, and 7.7x10{sup -3}, respectively.
We report on a search for the free-decay component of {pi}{sup -} stopped in water and light materials. A nonzero value of this would be an indication of anomalous {nu}{sub e} contamination to the {nu}{sub e} and {nu}{sub {mu}} production at stopped-pion neutrino facilities. No free-decay component of {pi}{sup -} was observed in water, Beryllium, and Aluminum, for which upper limits were established at 8.2x10{sup -4}, 3.2x10{sup -3}, and 7.7x10{sup -3}, respectively.