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In this work we consider a possible conceptual similarity between recent, amazing OPERA experiment of the superluminal propagation of neutrino and experiment of the gain-assisted superluminal light propagation realized about ten years ago.…

General Physics · Physics 2011-10-04 Vladan Pankovic

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

Violation of Lorentz invariance (VLI) has been suggested as an explanation of the superluminal velocities of muon neutrinos reported by OPERA. In this note we show that the amount of VLI required to explain this result poses severe…

High Energy Physics - Phenomenology · Physics 2011-12-21 R. Cowsik , S. Nussinov , U. Sarkar

We present a possible solution to the reported OPERA anomaly for the speed of neutrinos, based on the idea that it is a local effect caused by a scalar field sourced by the earth. The coupling of the scalar to neutrinos effectively changes…

High Energy Physics - Phenomenology · Physics 2011-10-14 Alex Kehagias

This talk opens the CosPA2011 session on OPERA's superluminal neutrino claim. I summarize relevant observations and constraints from OPERA, MINOS, ICARUS, KamLAND, IceCube and LEP as well as observations of SN1987A. I selectively review…

High Energy Physics - Phenomenology · Physics 2012-11-20 Jarah Evslin

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

In this letter, we show that superluminal neutrinos announced by OPERA could be explained by the existence of a monopole, which is left behind after the spontaneous symmetry breaking (SSB) phase transition of some scalar fields in the…

High Energy Physics - Phenomenology · Physics 2011-10-10 Peng Wang , Houwen Wu , Haitang Yang

Quantum trajectories are used to study OPERA findings regarding superluminal neutrinos. As the applicable stationary quantum Klein-Gordon equation is real, real quantum reduced actions and subsequent real quantum trajectories follow. The…

General Physics · Physics 2016-11-25 Edward R. Floyd

We revisit the bremsstrahlung process of a superluminal neutrino motivated by OPERA results. From a careful analysis of the plane wave solutions of the superluminal neutrino, we find that the squared matrix elements contain additional terms…

High Energy Physics - Phenomenology · Physics 2015-06-03 Fedor Bezrukov , Hyun Min Lee

Lagrangian of the Einstein's special relativity with universal parameter $c$ ($\mathcal{SR}_c$) is invariant under Poincar\'e transformation which preserves Lorentz metric $\eta_{\mu\nu}$. The $\mathcal{SR}_c$ has been extended to be one…

High Energy Physics - Theory · Physics 2014-11-18 Mu-Lin Yan , Neng-Chao Xiao , Wei Huang , Si Li

Modified neutrino dispersion relations, which still obey the relativity principle, can have both a superluminal (muon-type) neutrino and a luminal (electron-type) neutrino, as long as neutrino-mass effects can be neglected. The idea is to…

High Energy Physics - Phenomenology · Physics 2012-01-24 F. R. Klinkhamer

The de Sitter invariant Special Relativity (dS-SR) is a SR with constant curvature, and a natural extension of usual Einstein SR (E-SR). In this paper, we solved the dS-SR Dirac equation of Hydrogen by means of the adiabatic approach and…

General Physics · Physics 2012-05-23 Mu-Lin Yan

While the OPERA experimental scrutiny is ongoing in the community, in the present article we construct a toy model of {\it extended Lorentz code} (ELC) of the uniform motion, which will be a well established consistent and unique…

General Physics · Physics 2013-03-07 G. Ter-Kazarian

This report presents a brief review on the experimental measurements of the muon neutrino velocities from the OPERA, Fermilab and MINOS experiments and that of the (anti)-electron neutrino velocities from the supernova SN1987A, and…

High Energy Physics - Phenomenology · Physics 2012-01-27 Bo-Qiang Ma

A recent measurement of neutrino velocity by the OPERA experiment and prediction of energy loss of superluminal neutrino via the pair creation process $\nu\to \nu e^+e^-$ stimulated a search of isolated $e^+e^-$ pairs in detectors with good…

High Energy Physics - Phenomenology · Physics 2013-03-13 Paolo Walter Cattaneo

The OPERA collaboration reported evidence for muonic neutrinos travelling faster than light in vacuum. In this paper, an extended relativity theory is proposed. We think all particles can be divided into three kinds: The first kind of…

General Physics · Physics 2011-11-01 Xiang-Yao Wu , Bo-Jun Zhang , Xiao-Jing Liu , Nuo Ba , Yan Wang

We study two superluminal neutrino scenarios where \delta v\equiv (v-c)/c is a constant. To be consistent with the OPERA, Borexino, and ICARUS experiments and with the SN1987a observations, we assume that \delta v_{\nu} on the Earth is…

High Energy Physics - Phenomenology · Physics 2015-06-03 Yunjie Huo , Tianjun Li , Yi Liao , Dimitri V. Nanopoulos , Yonghui Qi , Fei Wang

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 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

We argue that the recent measurement of the neutrino velocity to be higher than the velocity of light could be due to violation of Lorentz invariance by the muon neutrinos. This result need not undermine special-relativistic foundational…

High Energy Physics - Phenomenology · Physics 2011-10-07 Robert B. Mann , Utpal Sarkar