Causality violation in e+e- pair production by superluminal neutrinos

被引:4
作者
Tomaschitz, R. [1 ]
机构
[1] Hiroshima Univ, Dept Phys, 1-3-1 Kagami Yama, Higashihiroshima 7398526, Japan
关键词
SKY MAPS; ANISOTROPY;
D O I
10.1209/0295-5075/98/19001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Pair emission by superluminal neutrinos is shown to be causality violating in the 10-50 GeV range covered by the OPERA experiment. Thus, the energy density of a freely propagating superluminal neutrino current is not affected by energy loss due to e(+)e(-) pair creation, in accordance with the unperturbed energy profile observed by ICARUS. Interaction processes involving sub- and superluminal particles give rise to time inversions in the rest frames of the subluminal constituents, resulting in causality violating predetermination. Therefore, kinematic causality constraints in addition to energy-momentum conservation are necessary to exclude causality violation outside the lightcone. Electron-positron pair production v(mu) -> v(mu) + e(+) + e(-) by superluminal muon neutrinos is forbidden in the OPERA energy range, as the kinematic constraints on the neutrino frequencies and wave vectors required by causality and energy-momentum conservation cannot simultaneously be satisfied.
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页数:6
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