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We argue that with the current experimental setup of the OPERA neutrino experiment no `bit' of information faster than light was or could be sent, and therefore no violation of Lorentz symmetry and/or causality was observed.

High Energy Physics - Phenomenology · Physics 2011-10-19 F. Giacosa , P. Kovacs , S. Lottini

The OPERA experiment is based on a hybrid technology combining electronic detectors and nuclear emulsions. OPERA collected muon-neutrino interactions during the 2008 and 2009 physics runs of the CNGS neutrino beam, produced at CERN with an…

High Energy Physics - Experiment · Physics 2012-08-27 OPERA Collaboration

We present a new technique to measure neutrino masses using their flow field relative to dark matter. Present day streaming motions of neutrinos relative to dark matter and baryons are several hundred km/s, comparable with their thermal…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-11 Hong-Ming Zhu , Ue-Li Pen , Xuelei Chen , Derek Inman , Yu Yu

The OPERA experiment was designed to observe ${\nu_{\mu}}$ ${\rightarrow}$ ${\nu_{\tau}}$ oscillations through ${\nu_{\tau}}$ appearance at a baseline of 730 km in the CNGS beam. Newly developed emulsion analysis technology allows to…

High Energy Physics - Experiment · Physics 2019-08-13 T. Fukuda

In light of the recent results from the OPERA collaboration, indicating that neutrinos can travel superluminally, I review a simple extra-dimensional strategy for accommodating such behavior; and I also explain why it is hard in this…

High Energy Physics - Theory · Physics 2015-05-30 Steven S. Gubser

A first result of the search for \numu $\rightarrow$ \nue oscillations in the OPERA experiment, located at the Gran Sasso Underground Laboratory, is presented. The experiment looked for the appearance of \nue in the CNGS neutrino beam using…

High Energy Physics - Experiment · Physics 2013-07-29 OPERA collaboration , N. Agafonova , A. Aleksandrov , A. Anokhina , S. Aoki , A. Ariga , T. Ariga , D. Autiero , A. Badertscher , A. Ben Dhahbi , A. Bertolin , C. Bozza , R. Brugnera , F. Brunet , G. Brunetti , B. Buettner , S. Buontempo , L. Chaussard , M. Chernyavsky , V. Chiarella , A. Chukanov , L. Consiglio , 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 , T. Ferber , R. A. Fini , T. Fukuda , A. Garfagnini , G. Giacomelli , C. Goellnitz , J. Goldberg , Y. Gornushkin , G. Grella , F. Grianti , A. M. Guler , C. Gustavino , C. Hagner , K. Hamada , T. Hara , M. Hierholzer , A. Hollnagel , B. Hosseini , H. Ishida , K. Ishiguro , K. Jakovcic , C. Jollet , F. Juget , 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 , J. Lenkeit , A. Ljubicic , A. Longhin , P. Loverre , A. Malgin , C. Mancini-Terracciano , G. Mandrioli , J. Marteau , T. Matsuo , V. Matveev , N. Mauri , E. Medinaceli , F. W. Meisel , A. Meregaglia , P. Migliozzi , S. Mikado , A. Minotti , P. Monacelli , M. C. Montesi , K. Morishima , M. T. Muciaccia , M. Nakamura , T. Nakano , Y. Nakatsuka , D. Naumov , K. Niwa , S. Ogawa , N. Okateva , A. Olchevsky , T. Omura , K. Ozaki , 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 , T. Schchedrina , A. Schembri , W. Schmidt-Parzefall , I. Shakiryanova , A. Sheshukov , H. Shibuya , T. Shiraishi , G. Shoziyoev , S. Simone , M. Sioli , C. Sirignano , G. Sirri , M. Spinetti , L. Stanco , N. Starkov , S. M. Stellacci , M. Stipcevic , T. Strauss , P. Strolin , K. Suzuki , 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 , C. S. Yoon , J. Yoshida , Y. Zaitsev , S. Zemskova , A. Zghiche

It is known that a geometric measurement of the light cones of supernovae determines the conformal class of the visible part of the spacetime. The conformal factor is physically meaningful but cannot be determined geometrically by anything…

High Energy Physics - Phenomenology · Physics 2021-12-15 Joonas Ilmavirta , Gunther Uhlmann

Lorentz symmetry is a fundamental space-time symmetry underlying the Standard Model of particle physics and gravity. However, unified theories, such as string theory, allow for violation of this symmetry. Thus, the discovery of Lorentz…

High Energy Physics - Experiment · Physics 2018-09-05 IceCube Collaboration , M. G. Aartsen , M. Ackermann , J. Adams , J. A. Aguilar , M. Ahlers , M. Ahrens , I. Al Samarai , D. Altmann , K. Andeen , T. Anderson , I. Ansseau , G. Anton , C. Argüelles , J. Auffenberg , S. Axani , H. Bagherpour , X. Bai , J. P. Barron , S. W. Barwick , V. Baum , R. Bay , J. J. Beatty , J. Becker Tjus , K. -H. Becker , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , G. Binder , D. Bindig , E. Blaufuss , S. Blot , C. Bohm , M. Börner , F. Bos , D. Bose , S. Böser , O. Botner , E. Bourbeau , J. Bourbeau , F. Bradascio , J. Braun , L. Brayeur , M. Brenzke , H. -P. Bretz , S. Bron , J. Brostean-Kaiser , A. Burgman , T. Carver , J. Casey , M. Casier , E. Cheung , D. Chirkin , A. Christov , K. Clark , L. Classen , S. Coenders , G. H. Collin , J. M. Conrad , D. F. Cowen , R. Cross , M. Day , J. P. A. M. de André , C. De Clercq , J. J. DeLaunay , H. Dembinski , S. De Ridder , P. Desiati , K. D. de Vries , G. de Wasseige , M. de With , T. DeYoung , J. C. Díaz-Vélez , V. di Lorenzo , H. Dujmovic , J. P. Dumm , M. Dunkman , E. Dvorak , B. Eberhardt , T. Ehrhardt , B. Eichmann , P. Eller , P. A. Evenson , S. Fahey , A. R. Fazely , J. Felde , K. Filimonov , C. Finley , S. Flis , A. Franckowiak , E. Friedman , T. Fuchs , T. K. Gaisser , J. Gallagher , L. Gerhardt , K. Ghorbani , W. Giang , T. Glauch , T. Glüsenkamp , A. Goldschmidt , J. G. Gonzalez , D. Grant , Z. Griffith , C. Haack , A. Hallgren , F. Halzen , K. Hanson , D. Hebecker , D. Heereman , K. Helbing , R. Hellauer , S. Hickford , J. Hignight , G. C. Hill , K. D. Hoffman , R. Hoffmann , B. Hokanson-Fasig , K. Hoshina , F. Huang , M. Huber , K. Hultqvist , M. Hünnefeld , S. In , A. Ishihara , E. Jacobi , G. S. Japaridze , M. Jeong , K. Jero , B. J. P. Jones , P. Kalaczynski , W. Kang , A. Kappes , T. Karg , A. Karle , T. Katori , U. Katz , M. Kauer , A. Keivani , J. L. Kelley , A. Kheirandish , J. Kim , M. Kim , T. Kintscher , J. Kiryluk , T. Kittler , S. R. Klein , G. Kohnen , R. Koirala , H. Kolanoski , L. Köpke , C. Kopper , S. Kopper , J. P. Koschinsky , D. J. Koskinen , M. Kowalski , K. Krings , M. Kroll , G. Krückl , J. Kunnen , S. Kunwar , N. Kurahashi , T. Kuwabara , A. Kyriacou , M. Labare , J. L. Lanfranchi , M. J. Larson , F. Lauber , M. Lesiak-Bzdak , M. Leuermann , Q. R. Liu , L. Lu , J. Lünemann , W. Luszczak , J. Madsen , G. Maggi , K. B. M. Mahn , S. Mancina , S. Mandalia , R. Maruyama , K. Mase , R. Maunu , F. McNally , K. Meagher , M. Medici , M. Meier , T. Menne , G. Merino , T. Meures , S. Miarecki , J. Micallef , G. Momenté , T. Montaruli , R. W. Moore , M. Moulai , R. Nahnhauer , P. Nakarmi , U. Naumann , G. Neer , H. Niederhausen , S. C. Nowicki , D. R. Nygren , A. Obertacke Pollmann , A. Olivas , A. O'Murchadha , T. Palczewski , H. Pandya , D. V. Pankova , P. Peiffer , J. A. Pepper , C. Pérez de los Heros , D. Pieloth , E. Pinat , M. Plum , P. B. Price , G. T. Przybylski , C. Raab , L. Rädel , M. Rameez , K. Rawlins , I. C. Rea , R. Reimann , B. Relethford , M. Relich , E. Resconi , W. Rhode , M. Richman , S. Robertson , M. Rongen , C. Rott , T. Ruhe , D. Ryckbosch , D. Rysewyk , T. Sälzer , S. E. Sanchez Herrera , A. Sandrock , J. Sandroos , M. Santander , S. Sarkar , S. Sarkar , K. Satalecka , P. Schlunder , T. Schmidt , A. Schneider , S. Schoenen , S. Schöneberg , L. Schumacher , D. Seckel , S. Seunarine , J. Soedingrekso , D. Soldin , M. Song , G. M. Spiczak , C. Spiering , J. Stachurska , M. Stamatikos , T. Stanev , A. Stasik , J. Stettner , A. Steuer , T. Stezelberger , R. G. Stokstad , A. Stößl , N. L. Strotjohann , T. Stuttard , G. W. Sullivan , M. Sutherland , I. Taboada , J. Tatar , F. Tenholt , S. Ter-Antonyan , A. Terliuk , G. Tešić , S. Tilav , P. A. Toale , M. N. Tobin , S. Toscano , D. Tosi , M. Tselengidou , C. F. Tung , A. Turcati , C. F. Turley , B. Ty , E. Unger , M. Usner , J. Vandenbroucke , W. Van Driessche , N. van Eijndhoven , S. Vanheule , J. van Santen , M. Vehring , E. Vogel , M. Vraeghe , C. Walck , A. Wallace , M. Wallraff , F. D. Wandler , N. Wandkowsky , A. Waza , C. Weaver , M. J. Weiss , C. Wendt , J. Werthebach , S. Westerhoff , B. J. Whelan , K. Wiebe , C. H. Wiebusch , L. Wille , D. R. Williams , L. Wills , M. Wolf , J. Wood , T. R. Wood , E. Woolsey , K. Woschnagg , D. L. Xu , X. W. Xu , Y. Xu , J. P. Yanez , G. Yodh , S. Yoshida , T. Yuan , M. Zoll

In this work it is shown, that for short 3ns neutrino pulses reported by OPERA, a relativistic shape deforming effect of the neutrino distribution function due to spontaneous emission, produces an earlier arrival of 65.8ns in agreement with…

High Energy Physics - Phenomenology · Physics 2011-12-06 Rafael Torrealba

We discuss decays of ultra-relativistic neutrinos over cosmological distances by solving the decay equation in terms of its redshift dependence. We demonstrate that there are significant conceptual differences compared to more simplified…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-16 Philipp Baerwald , Mauricio Bustamante , Walter Winter

We explore the neutrinoless double beta ($0\nu \beta\beta$) decay induced by an ultralight dark matter field coupled to neutrinos. The effect on $0\nu\beta\beta$ decay is significant if the coupling violates the lepton number, for which the…

High Energy Physics - Phenomenology · Physics 2022-06-17 Guo-yuan Huang , Newton Nath

Based on the developed cross-correlation theory for remote location of neutrino source with two-detector setup for neutrino detection the modification of arrangement of the OPERA experiment is suggested. Within the framework of computing…

Data Analysis, Statistics and Probability · Physics 2012-04-25 V. D. Rusov , V. I. Vysotskii , V. A. Tarasov , I. V. Sharph , V. P. Smolyar , T. N. Zelentsova , K. K. Merkotan , E. P. Linnik , M. E. Beglaryan

OPERA collaboration has reported evidence of superluminal phenomenon for neutrinos. One of the possible ways to explain the superluminality is to have Lorentz symmetry violated. It has been shown that dispersion relations put forwards has…

High Energy Physics - Phenomenology · Physics 2015-06-03 Gang Guo , Xiao-Gang He

The neutrino flavour oscillations hypothesis has been confirmed by several experiments, all are based on the observation of the disappearance of a given neutrino flavour. The long baseline neutrino experiment OPERA (Oscillation Project with…

High Energy Physics - Experiment · Physics 2009-05-29 Guillaume Lutter

The aim of the OPERA experiment is to search for the appearance of the tau neutrino in the quasi pure muon neutrino beam produced at CERN (CNGS). The detector, installed in the Gran Sasso underground laboratory 730 km away from CERN,…

High Energy Physics - Experiment · Physics 2015-05-14 J. Marteau

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

The OPERA experiment, exposed to the CERN to Gran Sasso $\nu_\mu$ beam, collected data from 2008 to 2012. Four oscillated $\nu_\tau$ Charged Current interaction candidates have been detected in appearance mode, which are consistent with…

High Energy Physics - Experiment · Physics 2017-03-15 OPERA Collaboration , N. Agafonova , A. Aleksandrov , A. Anokhina , S. Aoki , A. Ariga , T. Ariga , D. Bender , A. Bertolin , I. Bodnarchuk , C. Bozza , R. Brugnera , A. Buonaura , S. Buontempo , B. Büttner , M. Chernyavsky , A. Chukanov , L. Consiglio , N. D'Ambrosio , G. De Lellis , M. De Serio , P. Del Amo Sanchez , A. Di Crescenzo , D. Di Ferdinando , N. Di Marco , S. Dmitrievski , M. Dracos , D. Duchesneau , S. Dusini , T. Dzhatdoev , J. Ebert , A. Ereditato , R. A. Fini , T. Fukuda , G. Galati , A. Garfagnini , J. Goldberg , Y. Gornushkin , G. Grella , A. M. Guler , C. Gustavino , C. Hagner , T. Hara , A. Hollnagel , B. Hosseini , K. Ishiguro , K. Jakovcic , C. Jollet , C. Kamiscioglu , M. Kamiscioglu , J. H. Kim , S. H. Kim , N. Kitagawa , B. Klicek , K. Kodama , M. Komatsu , U. Kose , I. Kreslo , A. Lauria , A. Ljubicic , A. Longhin , A. Malgin , M. Malenica , G. Mandrioli , T. Matsuo , V. Matveev , N. Mauri , E. Medinaceli , A. Meregaglia , S. Mikado , P. Monacelli , M. C. Montesi , K. Morishima , M. T. Muciaccia , N. Naganawa , T. Naka , M. Nakamura , T. Nakano , Y. Nakatsuka , K. Niwa , S. Ogawa , T. Omura , K. Ozaki , A. Paoloni , L. Paparella , B. D. Park , I. G. Park , L. Pasqualini , A. Pastore , L. Patrizii , H. Pessard , D. Podgrudkov , N. Polukhina , M. Pozzato , F. Pupilli , M. Roda , T. Roganova , H. Rokujo , G. Rosa , O. Ryazhskaya , O. Sato , A. Schembri , I. Shakirianova , T. Shchedrina , A. Sheshukov , H. Shibuya , T. Shiraishi , G. Shoziyoev , S. Simone , M. Sioli , C. Sirignano , G. Sirri , M. Spinetti , L. Stanco , N. Starkov , S. M. Stellacci , M. Stipcevic , P. Strolin , S. Takahashi , M. Tenti , F. Terranova , V. Tioukov , S. Tufanli , P. Vilain , M. Vladymyrov , L. Votano , J. L. Vuilleumier , G. Wilquet , B. Wonsak , C. S. Yoon , S. Zemskova

The fact that neutrinos have mass allows them to possess many other properties, like a magnetic dipole moment and a finite decay width. Theoretical expectations for these are, however, well beyond current experimental bounds, and the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Andre de Gouvea

Neutrinos are perhaps the most elusive known particles in the universe. We know they have some nonzero mass, but unlike all other particles, the absolute scale remains unknown. In addition, their fundamental nature is uncertain; they can…

Nuclear Theory · Physics 2023-07-31 A. Belley , T. Miyagi , S. R. Stroberg , J. D. Holt

We show that the superluminal muon neutrinos in the recent OPERA experiment can exist theoretically. The refutation of the OPERA experiment from some theoretical arguments is not universally valid, but resulting from some implicit…

High Energy Physics - Phenomenology · Physics 2011-11-16 Zhou Lingli , Bo-Qiang Ma