Superluminal Neutrinos at OPERA Confront Pion Decay Kinematics

被引：29

作者：

Cowsik, Ramanath ^{[1
,2
]}

Nussinov, Shmuel ^{[3
,4
]}

Sarkar, Utpal ^{[1
,2
,5
]}

机构：

[1] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[2] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA

[3] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[4] Chapman Univ, Schmidt Coll Sci, Orange, CA 92866 USA

[5] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 25期

关键词：

LORENTZ INVARIANCE; SPECIAL RELATIVITY; MUON VELOCITIES; TESTS; CPT; VIOLATION; SN1987A; BURST; RAY;

D O I：

10.1103/PhysRevLett.107.251801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Violation of Lorentz invariance (VLI) has been suggested as an explanation of the superluminal velocities of muon neutrinos reported by OPERA. In this Letter, we show that the amount of VLI required to explain this result poses severe difficulties with the kinematics of the pion decay, extending its lifetime and reducing the momentum carried away by the neutrinos. We show that the OPERA experiment limits alpha = (upsilon(v) - c)/c < 4 x 10(-6). We then take recourse to cosmic-ray data on the spectrum of muons and neutrinos generated in Earth's atmosphere to provide a stronger bound on VLI: (upsilon - c)/c < 10(-12).

引用

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