Charged lepton production from iron induced by atmospheric neutrinos

被引:13
作者
Athar, MS [1 ]
Ahmad, S [1 ]
Singh, SK [1 ]
机构
[1] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
关键词
D O I
10.1140/epja/i2004-10234-2
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The charged current lepton production induced by neutrinos in Fe-56 nuclei has been studied. The calculations have been done for the quasielastic as well as the inelastic reactions assuming Delta-dominance and take into account the effect of Pauli blocking, Fermi motion and the renormalization of weak transition strengths in the nuclear medium. The quasielastic production cross-sections for lepton production are found to be strongly reduced due to nuclear effects, while there is about 10% reduction in the inelastic cross-sections in the absence of the final-state interactions of the pions. The numerical results for the momentum and angular distributions of the leptons averaged over the various atmospheric-neutrino spectra at the Soudan and Gran Sasso sites have been presented. The effect of nuclear-model dependence and the atmospheric-flux dependence on the relative yield of mu to e has been studied and discussed.
引用
收藏
页码:459 / 474
页数:16
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