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We investigate the possibility of explaining the propagation of neutrinos measured by the OPERA experiment with $\delta v_\nu=(v_\nu-c_0)/c_0$, where $c_0$ is the speed of light in vacuum, using a bimetric relativity model. The geometry of…

High Energy Physics - Phenomenology · Physics 2011-10-13 J. W. Moffat

Radiative corrections to the dispersion of neutrinos in nonstandard vacuum may give rise to "boosts" in their speed. This could explain recent experimental evidence by the OPERA collaboration, as well as the null result indicated by the…

General Physics · Physics 2011-09-27 Karl Svozil

We suggest a possible interpretation of the recent observation by the OPERA collaboration of superluminal propagation of neutrinos. We show that it is in principle possible that the group velocity of neutrinos exceeds the speed of light…

High Energy Physics - Phenomenology · Physics 2011-10-13 Antonio Mecozzi , Marco Bellini

We discuss the possibility that the limiting speed (c_l) appearing in Lorentz equations might be different i.e., slightly larger than the observed speed of light (c_n). We show that such a possibility can be tested by state-of-the-art…

High Energy Physics - Phenomenology · Physics 2015-06-04 Jean-Marie Frere , Simon Mollet , Michel H. G. Tytgat

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

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

This is a brief note discussing the energy dependence of superluminal neutrino velocities recently claimed by OPERA [1,2]. The analysis is based on the data provided there on this issue, as well as on consistency with neutrino data from…

High Energy Physics - Phenomenology · Physics 2011-10-25 N. D. Hari Dass

The debate on OPERA focused on two extremes: either "OPERA is wrong" or our formulation of the laws of physics needs a major overhaul. I here argue that some effort should be directed toward manifestations of laws that are already known,…

High Energy Physics - Phenomenology · Physics 2012-02-01 Giovanni Amelino-Camelia

In his paper "A very simple solution to the OPERA neutrino velocity problem" the author J. Manuel Garcia-Islas claims to have very easily solved and explained within the general theory of relativity that OPERA's neutrinos are not traveling…

General Physics · Physics 2013-04-30 Christian Corda

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 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

In spring 2012 CERN provided two weeks of a short bunch proton beam dedicated to the neutrino velocity measurement over a distance of 730 km. The OPERA neutrino experiment at the underground Gran Sasso Laboratory used an upgraded setup…

High Energy Physics - Experiment · Physics 2015-06-12 The OPERA Collaboration , T. Adam , N. Agafonova , A. Aleksandrov , A. Anokhina , S. Aoki , A. Ariga , T. Ariga , D. Autiero , A. Badertscher , A. Ben Dhahbi , M. Beretta , A. Bertolin , C. Bozza , T. Brugière , R. Brugnera , F. Brunet , G. Brunetti , B. Buettner , S. Buontempo , B. Carlus , F. Cavanna , A. Cazes , L. Chaussard , M. Chernyavsky , V. Chiarella , A. Chukanov , N. D'Ambrosio , G. De Lellis , M. De Serio , P. del Amo Sanchez , A. Di Crescenzo , D. Di Ferdinando , N. Di Marco , S. Dmitrievsky , M. Dracos , D. Duchesneau , S. Dusini , T. Dzhatdoev , J. Ebert , A. Ereditato , L. S. Esposito , J. Favier , G. Felici , T. Ferber , R. A. Fini , T. Fukuda , A. Garfagnini , G. Giacomelli , C. Girerd , C. Goellnitz , J. Goldberg , D. Golubkov , Y. Gornushkin , G. Grella , F. Grianti , C. Guerin , A. M. Guler , C. Gustavino , C. Hagner , K. Hamada , T. Hara , M. Hierholzer , A. Hollnagel , H. Ishida , K. Ishiguro , K. Jakovcic , C. Jollet , C. Kamiscioglu , M. Kamiscioglu , J. Kawada , J. H. Kim , S. H. Kim , M. Kimura , N. Kitagawa , B. Klicek , K. Kodama , M. Komatsu , U. Kose , I. Kreslo , A. Lauria , C. Lazzaro , J. Lenkeit , A. Ljubicic , A. Longhin , C. Mancini-Terracciano , A. Malgin , G. Mandrioli , J. Marteau , T. Matsuo , V. Matveev , N. Mauri , E. Medinaceli , A. Meregaglia , P. Migliozzi , S. Mikado , P. Monacelli , M. C. Montesi , K. Morishima , U. Moser , M. T. Muciaccia , M. Nakamura , T. Nakano , Y. Nakatsuka , D. Naumov , V. Nikitina , S. Ogawa , A. Olchevsky , K. Ozaki , O. Palamara , A. Paoloni , B. D. Park , I. G. Park , A. Pastore , L. Patrizii , E. Pennacchio , H. Pessard , C. Pistillo , D. Podgrudkov , N. Polukhina , M. Pozzato , K. Pretzl , F. Pupilli , R. Rescigno , M. Roda , T. Roganova , H. Rokujo , G. Rosa , I. Rostovtseva , A. Rubbia , A. Russo , O. Ryazhskaya , O. Sato , Y. Sato , A. Schembri , W. Schmidt-Parzefall , J. Schuler , I. Shakiryanova , A. Sheshukov , H. Shibuya , G. Shoziyoev , S. Simone , M. Sioli , C. Sirignano , G. Sirri , J. S. Song , M. Spinetti , L. Stanco , N. Starkov , S. M. Stellacci , M. Stipcevic , T. Strauss , S. Takahashi , M. Tenti , F. Terranova , V. Tioukov , P. Tolun , S. Tufanli , P. Vilain , M. Vladimirov , L. Votano , J. L. Vuilleumier , G. Wilquet , B. Wonsak , J. Wurtz , C. S. Yoon , J. Yoshida , Y. Zaitsev , S. Zemskova , A. Zghiche , R. Zimmermann

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

The OPERA neutrino experiment at the underground Gran Sasso Laboratory recently reported, in arXiv:1109.4897v1, high-accuracy velocity measurements of neutrinos from the CERN CNGS beam over the 730 km distance between the two laboratories.…

General Physics · Physics 2011-10-21 Markus G. Kuhn

The atmospheric neutrino anomaly is the apparent reduction of the $\nu_{\mu}/\nu_{e}$ ratio observed in underground detectors. It represents either a reduction in the muon neutrino interaction rate or an excess of the electron neutrino…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. M. LoSecco

An interpretation of the recent results reported by the OPERA collaboration is that neutrinos propagation in vacuum exceeds the speed of light. It has been further been suggested that this interpretation can be attributed to the variation…

High Energy Physics - Phenomenology · Physics 2015-05-30 Alon E. Faraggi

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 examine uncertainties in the analysis of the reactor neutrino anomaly, wherein it is suggested that only about 94% of the emitted antineutrino flux was detected in short baseline experiments. We find that the form of the corrections that…

Nuclear Theory · Physics 2014-05-28 A. C. Hayes , J. L. Friar , G. T. Garvey , G. Jungman , Guy Jonkmans

The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km. The measurement is based on data taken by OPERA in the years 2009, 2010…

High Energy Physics - Experiment · Physics 2015-05-30 The OPERA Collaboration , T. Adam , N. Agafonova , A. Aleksandrov , O. Altinok , P. Alvarez Sanchez , A. Anokhina , S. Aoki , A. Ariga , T. Ariga , D. Autiero , A. Badertscher , A. Ben Dhahbi , A. Bertolin , C. Bozza , T. Brugiere , R. Brugnera , F. Brunet , G. Brunetti , S. Buontempo , B. Carlus , F. Cavanna , A. Cazes , L. Chaussard , M. Chernyavsky , V. Chiarella , A. Chukanov , G. Colosimo , M. Crespi , N. D'Ambrosio , G. De Lellis , M. De Serio , Y. Declais , P. del Amo Sanchez , F. Di Capua , A. Di Crescenzo , D. Di Ferdinando , N. Di Marco , S. Dmitrievsky , M. Dracos , D. Duchesneau , S. Dusini , T. Dzhatdoev , J. Ebert , I. Efthymiopoulos , O. Egorov , A. Ereditato , L. S. Esposito , J. Favier , T. Ferber , R. A. Fini , T. Fukuda , A. Garfagnini , G. Giacomelli , M. Giorgini , M. Giovannozzi , C. Girerd , J. Goldberg , C. Gollnitz , D. Golubkov , L. Goncharova , Y. Gornushkin , G. Grella , F. Grianti , E. Gschwendtner , C. Guerin , A. M. Guler , C. Gustavino , C. Hagner , K. Hamada , T. Hara , R. Enikeev , M. Hierholzer , A. Hollnagel , M. Ieva , H. Ishida , K. Ishiguro , K. Jakovcic , C. Jollet , M. Jones , F. Juget , M. Kamiscioglu , J. Kawada , S. H. Kim , M. Kimura , E. Kiritsis , N. Kitagawa , B. Klicek , J. Knuesel , K. Kodama , M. Komatsu , U. Kose , I. Kreslo , C. Lazzaro , J. Lenkeit , A. Ljubicic , A. Longhin , A. Malgin , G. Mandrioli , J. Marteau , T. Matsuo , V. Matveev , N. Mauri , A. Mazzoni , E. Medinaceli , F. Meisel , A. Meregaglia , P. Migliozzi , S. Mikado , D. Missiaen , P. Monacelli , K. Morishima , U. Moser , M. T. Muciaccia , N. Naganawa , T. Naka , M. Nakamura , T. Nakano , Y. Nakatsuka , D. Naumov , V. Nikitina , F. Nitti , S. Ogawa , N. Okateva , A. Olchevsky , O. Palamara , A. Paoloni , B. D. Park , I. G. Park , A. Pastore , L. Patrizii , E. Pennacchio , H. Pessard , C. Pistillo , N. Polukhina , M. Pozzato , K. Pretzl , F. Pupilli , R. Rescigno , F. Riguzzi , T. Roganova , H. Rokujo , G. Rosa , I. Rostovtseva , A. Rubbia , A. Russo , V. Ryasny , O. Ryazhskaya , O. Sato , Y. Sato , Z. Sahnoun , A. Schembri , J. Schuler , L. Scotto Lavina , J. Serrano , I. Shakiryanova , A. Sheshukov , H. Shibuya , G. Shoziyoev , S. Simone , M. Sioli , C. Sirignano , G. Sirri , J. S. Song , M. Spinetti , L. Stanco , N. Starkov , S. Stellacci , M. Stipcevic , T. Strauss , S. Takahashi , M. Tenti , F. Terranova , I. Tezuka , V. Tioukov , P. Tolun , N. T. Tran , S. Tufanli , P. Vilain , M. Vladimirov , L. Votano , J. -L. Vuilleumier , G. Wilquet , B. Wonsak , J. Wurtz , V. Yakushev , C. S. Yoon , J. Yoshida , Y. Zaitsev , S. Zemskova , A. Zghiche

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