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We revisit the model building challenges that one faces when trying to reconcile the OPERA claim of neutrino superluminality with other observational constraints. The severity of the supernova bound and of the kinematical constraints of…

High Energy Physics - Phenomenology · Physics 2015-06-03 Arthur Hebecker , Alexander Knochel

A possible explanation of the results of the OPERA experiment is presented. Assuming that the usual value of c should be interpreted as the velocity of light in dark matter, we call the "true" velocity of light in vacuum, $c_t$. Then the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Joseph Schechter , M. Naeem Shahid

In this paper, we consider the apparent superluminal speed of neutrinos in their travel from CERN to Gran Susso, as measured by the OPERA experiment, within the framework of the Extended Lorentz Transformation Model. The model is based on a…

General Physics · Physics 2012-02-28 S. Hamieh

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

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

Recent time-of-flight measurements on muon neutrinos in the OPERA neutrino oscillation experiment have found anomalously short times compared to the light travel-times, corresponding to a superluminal velocity, $v-1=2.37\pm0.32\times…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 P. C. W. Davies , Ian G. Moss

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

Superluminal neutrinos are expected to lose energy due to bremstrauhlung. It is dominated by e+e--pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos.…

High Energy Physics - Phenomenology · Physics 2015-06-03 D. S. Gorbunov , E. Ya. Nugaev

The OPERA experiment has reported neutrinos, from the CNGS beam, that arrived to Gran Sasso Laboratory 60ns earlier that expected for light, within a statistical error margin of {\S}6:9 and a systemic error of {\S}7:4. Therefore, these…

High Energy Physics - Phenomenology · Physics 2015-03-13 Rafael Torrealba

The OPERA collaboration recently reported that muon neutrinos could be superluminal. More recently, Cohen and Glashow pointed that such superluminal neutrinos would be suppressed since they lose their energies rapidly via bremsstrahlung. In…

High Energy Physics - Phenomenology · Physics 2012-05-01 Zhe Chang , Xin Li , Sai Wang

Recent results from the OPERA experiment reported a neutrino beam traveling faster than light. The experiment measured the neutrino time of flight (TOF) over a baseline from the CERN to the Gran Sasso site. The neutrino beam arrives 60 ns…

General Physics · Physics 2015-06-03 Claudio Germana

The authors of the OPERA experiment [arXiv:1109.4897] claim that "the measurement indicates an early arrival time of CNGS muon neutrinos with respect to the one computed assuming the speed of light in vacuum". In this note we analyze the…

High Energy Physics - Phenomenology · Physics 2011-10-25 H. Bergeron

The CERN-OPERA experiment claims to have measured a one-way speed of neutrinos that is apparently faster than the speed of light c. One-way speed measurements such as these inevitably require a convention for the synchronisation of clocks…

High Energy Physics - Phenomenology · Physics 2011-09-30 Carlo R. Contaldi

We give an explanation on the effect of superluminal neutrinos in the OPERA experiment and show that the SN 1987A data and the recent OPERA data do agree well by the use of common known physics. The data in addition can give a good number…

General Physics · Physics 2011-12-05 H. Genreith

The superluminal propagation of neutrinos observed by OPERA collaboration can be interpreted as neutrinos traveling in a pseudoscalar potential which may be generated by a medium. The OPERA differential arrival time data set a constraint on…

High Energy Physics - Phenomenology · Physics 2011-10-12 Sarira Sahu , Bing Zhang

We show that the superluminal speeds of the muon neutrinos observed in the OPERA experiment can be explained within a relativity theory with extra time like dimensions. In addition, such theory predicts, the existence of dark matter.

General Relativity and Quantum Cosmology · Physics 2011-10-24 Matej Pavšič

Most recently, the measurement of the neutrino velocity with the OPERA detector in the CNGS beam shows unexpected indication, that the muon neutrino velocity, $v_{\nu}$, exceeds the velocity of light in the vacuum, $c$, which is obviously…

High Energy Physics - Phenomenology · Physics 2012-03-27 Nan Qin , Bo-Qiang Ma

It is shown that a generalized special theory of relativity (GSTR) with an arbitrary limiting velocity of a particle different or equal to the speed of light in vacuum can be constructed from the canonical equation of the 4-dimensional…

General Physics · Physics 2012-02-27 A. S. Parvan

We analyze the velocity dependence on energy of superluminal neutrino recorded by the OPERA and MINOS collaborations and manage to approximate the energy spectrum by a power law E=p+Cp^a where parameters must be taken in the range…

High Energy Physics - Phenomenology · Physics 2011-12-14 Ernst Trojan

We consider Lorentz- and CPT-violating dimension-5 operators to address the issue of superluminal neutrinos recently pointed out in OPERA experiments. We assume these operators in the photon and neutrino sectors coupled to Lorentz-violating…

High Energy Physics - Phenomenology · Physics 2015-06-03 C. A. G. Almeida , M. A. Anacleto , F. A. Brito , E. Passos