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The OPERA Collaboration reported evidence for muonic neutrinos traveling slightly faster than light in vacuum. While waiting further checks from the experimental community, here we aim at exploring some theoretical consequences of the…

High Energy Physics - Phenomenology · Physics 2015-05-30 Alessandro Drago , Isabella Masina , Giuseppe Pagliara , Raffaele Tripiccione

The OPERA collaboration has claimed the discovery of supeluminal neutrino propagation. However the superluminal interpretation of the OPERA result was refuted by Cohen and Glashow because it was shown that such superluminal neutrinos would…

High Energy Physics - Phenomenology · Physics 2011-10-12 Irina Ya. Aref'eva , Igor V. Volovich

The OPERA collaboration has announced to have observed superluminal neutrinos with a mean energy 17.5 GeV, but afterward the superluminal interpretation of the OPERA results has been refuted theoretically by Cherenkov-like radiation and…

High Energy Physics - Phenomenology · Physics 2015-06-03 Ichiro Oda

We digress on the implications of recent claims of superluminal neutrino propagation. No matter how we turn it around such behaviour is very odd and sits uncomfortably even within "far-fetched" theories. In the context of non-linear…

High Energy Physics - Phenomenology · Physics 2011-10-07 Joao Magueijo

The recent result by the OPERA experiment, confirming a trend already present in a previous result by MINOS, raises the question of a possible strong violation of standard relativity. In particular, the particles of the standard model would…

General Physics · Physics 2011-09-29 Luis Gonzalez-Mestres

In this paper three things are done. (i) We investigate the analogues of Cerenkov radiation for the decay of a superluminal neutrino and calculate the Cerenkov angles for the emission of a photon through a W loop, and for a collinear…

General Physics · Physics 2012-08-06 U. D. Jentschura

OPERA has claimed the discovery of superluminal propagation of neutrinos. We analyze the consistency of this claim with previous tests of special relativity. We find that reconciling the OPERA measurement with information from SN1987a and…

High Energy Physics - Phenomenology · Physics 2015-05-30 Gian F. Giudice , Sergey Sibiryakov , Alessandro Strumia

The superluminal is reported in OPERA neutrino experiment (arXiv:1109.4897v2), this result is consistent with previous MINOS experiment about neutrino velocity (Phys. Rev. D 76, 072005 (2007)). Here we propose a Dirac equation of tachyon…

High Energy Physics - Phenomenology · Physics 2011-11-24 Chang-Yu Zhu , H. Fan , Shi-Ping Ding

The result of the OPERA experiment revealed that the velocity of muon-neutrinos was larger than the speed of light. We argue that this apparent superluminal velocity can be interpreted as a weak value, which is a new concept recently…

High Energy Physics - Phenomenology · Physics 2011-10-11 Shogo Tanimura

The OPERA collaboration has reported the observation of superluminal muon neutrinos, whose speed $v_\nu$ exceeds that of light $c$, with $(v_\nu - c)/c \simeq 2.5 \times 10^{-5}$. In a recent work, Cohen and Glashow (CG) have refuted this…

High Energy Physics - Phenomenology · Physics 2015-05-30 Hooman Davoudiasl , Thomas G. Rizzo

The velocity anomaly recently reported by the OPERA collaboration appears strikingly at odds with the theory of special relativity. I offer a reinterpretation which removes this conflict, to wit that neutrinos yield a truer measurement of…

High Energy Physics - Phenomenology · Physics 2011-12-07 Susan Gardner

Recent data from the OPERA experiment seem to point to neutrinos propagating faster than light. One possible physics explanation for such a result is the existence of light sterile neutrinos which can propagate in a higher dimensional bulk…

High Energy Physics - Phenomenology · Physics 2011-10-04 Steen Hannestad , Martin S. Sloth

Recent experiments by OPERA with high energy neutrinos, as well as astrophysics observation data, may possibly prove violations of underlying principles of special relativity theory. This paper attempts to present an elementary modification…

General Physics · Physics 2012-01-30 Yu. I. Bogdanov , A. Yu. Bogdanov

Various approaches aim to describe the recent analysis by the OPERA experiment, which indicates that neutrinos travel faster than the speed of light. We demonstrate that any such theoretical or experimental explanation must not destroy the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Walter Winter

The splitting of neutrinos, a viable reaction for superluminal neutrinos, is shown to have phenomenologically relevant consequences if one accepts the recent OPERA results for the velocity of neutrinos. Neutrino splitting can be used to put…

High Energy Physics - Phenomenology · Physics 2011-10-04 J. M. Carmona , J. L. Cortes

In the context of theories where particles can have different limiting velocities, we review the running of particle speeds towards a common limiting velocity at low energy. Motivated by the recent OPERA experimental results, we describe a…

High Energy Physics - Phenomenology · Physics 2015-03-19 Mohamed M. Anber , John F. Donoghue

In a recent study, Cohen and Glashow argue that superluminal neutrinos of the type recently reported by OPERA should be affected by anomalous Cherenkov-like processes. This causes them to loose much of their energy before reaching the OPERA…

High Energy Physics - Phenomenology · Physics 2015-05-30 Giovanni Amelino-Camelia , Laurent Freidel , Jerzy Kowalski-Glikman , Lee Smolin

Einstein's theory of special relativity(SR) and the principle of causality imply that the speed of any moving object can not exceed that of light in a vacuum($c$).However,there were many attempts in literature discussing the particle moving…

High Energy Physics - Phenomenology · Physics 2007-05-23 Guang-jiong Ni

Based on the experimental discovery that the mass-square of neutrino is negative, a quantum theory for superluminal neutrino is proposed. Two Weyl equations coupled together via a mass term respecting the maximum parity violation lead to a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Guang-jiong Ni , Tsao Chang

Whether there is a superluminal object existing in the real world is a mystery in modern physics. Recently, OPERA collaboration claims that they have observed superluminal neutrinos in their experiments. This leads to a rest mass paradox by…

General Physics · Physics 2013-03-12 Chao-Jun Feng , Xin-Zhou Li , Dao-Jun Liu
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