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We provide a classification of generalized CP symmetries preserved by the neutrino mass matrix according to the number of zero entries in the associated transformation matrix. We determine the corresponding constrained form of the lepton…

High Energy Physics - Phenomenology · Physics 2016-08-10 Peng Chen , Gui-Jun Ding , Felix Gonzalez-Canales , J. W. F. Valle

Using Chiral Perturbation Theory to properly account for the dynamics of nonleptonic $K\to 2\,\pi$ decays, we found the Standard Model prediction for the CP violating ratio $\mbox{Re}\left(\varepsilon'/\varepsilon\right)=\left(14\pm…

High Energy Physics - Phenomenology · Physics 2020-12-18 Hector Gisbert

One of the main goals of the Long Baseline Neutrino Observatory (LBNO) is to study the $L/E$ behaviour (spectral information) of the electron neutrino and antineutrino appearance probabilities, in order to determine the unknown CP-violation…

High Energy Physics - Phenomenology · Physics 2014-12-02 LBNO Collaboration , S. K. Agarwalla , L. Agostino , M. Aittola , A. Alekou , B. Andrieu , F. Antoniou , R. Asfandiyarov , D. Autiero , O. Bésida , A. Balik , P. Ballett , I. Bandac , D. Banerjee , W. Bartmann , F. Bay , B. Biskup , A. M. Blebea-Apostu , A. Blondel , M. Bogomilov , S. Bolognesi , E. Borriello , I. Brancus , A. Bravar , M. Buizza-Avanzini , D. Caiulo , M. Calin , M. Calviani , M. Campanelli , C. Cantini , G. Cata-Danil , S. Chakraborty , N. Charitonidis , L. Chaussard , D. Chesneanu , F. Chipesiu , P. Crivelli , J. Dawson , I. De Bonis , Y. Declais , P. Del Amo Sanchez , A. Delbart , S. Di~Luise , D. Duchesneau , J. Dumarchez , I. Efthymiopoulos , A. Eliseev , S. Emery , T. Enqvist , K. Enqvist , L. Epprecht , A. N. Erykalov , T. Esanu , D. Franco , M. Friend , V. Galymov , G. Gavrilov , A. Gendotti , C. Giganti , S. Gilardoni , B. Goddard , C. M. Gomoiu , Y. A. Gornushkin , P. Gorodetzky , A. Haesler , T. Hasegawa , S. Horikawa , K. Huitu , A. Izmaylov , A. Jipa , K. Kainulainen , Y. Karadzhov , M. Khabibullin , A. Khotjantsev , A. N. Kopylov , A. Korzenev , S. Kosyanenko , D. Kryn , Y. Kudenko , P. Kuusiniemi , I. Lazanu , C. Lazaridis , J. -M. Levy , K. Loo , J. Maalampi , R. M. Margineanu , J. Marteau , C. Martin-Mari , V. Matveev , E. Mazzucato , A. Mefodiev , O. Mineev , A. Mirizzi , B. Mitrica , S. Murphy , T. Nakadaira , S. Narita , D. A. Nesterenko , K. Nguyen , K. Nikolics , E. Noah , Yu. Novikov , A. Oprima , J. Osborne , T. Ovsyannikova , Y. Papaphilippou , S. Pascoli , T. Patzak , M. Pectu , E. Pennacchio , L. Periale , H. Pessard , B. Popov , M. Ravonel , M. Rayner , F. Resnati , O. Ristea , A. Robert , A. Rubbia , K. Rummukainen , A. Saftoiu , K. Sakashita , F. Sanchez-Galan , J. Sarkamo , N. Saviano , E. Scantamburlo , F. Sergiampietri , D. Sgalaberna , E. Shaposhnikova , M. Slupecki , D. Smargianaki , D. Stanca , R. Steerenberg , A. R. Sterian , P. Sterian , S. Stoica , C. Strabel , J. Suhonen , V. Suvorov , G. Toma , A. Tonazzo , W. H. Trzaska , R. Tsenov , K. Tuominen , M. Valram , G. Vankova-Kirilova , F. Vannucci , G. Vasseur , F. Velotti , P. Velten , V. Venturi , T. Viant , S. Vihonen , H. Vincke , A. Vorobyev , A. Weber , S. Wu , N. Yershov , L. Zambelli , M. Zito

The manifestation of CP, T violation in the leptonic sector is studied for flavour neutrino oscillations, both in vacuum and in matter. Different conditions of short-base-line versus long-base-line experiments are discussed.

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Bernabeu

One of the main purposes of long-baseline neutrino experiments is to unambiguously measure the CP violating phase in the neutrino sector within the three neutrino oscillation picture. In the presence of physics beyond the Standard Model,…

High Energy Physics - Phenomenology · Physics 2018-08-29 L. J. Flores , E. A. Garcés , O. G. Miranda

Phenomenological CP-violating parameters in decays of neutral B-mesons are discussed with special attention to the degree of their measurability. Important role of the sign of \Delta m_B is emphasized. We briefly describe how it could be…

High Energy Physics - Phenomenology · Physics 2016-11-03 Ya. Azimov

We study the optimal setup for observation of the CP asymmetry in neutrino factory experiments --- the baseline length, the muon energy and the analysis method. First, we point out that the statistical quantity which has been used in…

High Energy Physics - Phenomenology · Physics 2017-08-23 M. Koike , T. Ota , J. Sato

Precision measurement of the leptonic CP violating phase $\delta$ will suffer from the, then surviving, large uncertainty of sin^2 \theta_{23} of 10-20% in the experimentally interesting region near maximal mixing of \theta_{23}. We…

High Energy Physics - Phenomenology · Physics 2013-06-12 Hisakazu Minakata , Stephen J. Parke

We illustrate the graphical method that gives the constraints on the parameters appearing in the neutrino oscillation experiments and the neutrinoless double beta decay. This method is applicable in three and four generations. Though this…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. Matsuda , N. Takeda , T. Fukuyama , H. Nishiura

This Letter reports a search for charge-parity ($CP$) symmetry violating nonstandard interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their effects on the determination of the standard oscillation…

High Energy Physics - Experiment · Physics 2024-11-28 NOvA Collaboration , M. A. Acero , B. Acharya , P. Adamson , L. Aliaga , N. Anfimov , A. Antoshkin , E. Arrieta-Diaz , L. Asquith , A. Aurisano , A. Back , N. Balashov , P. Baldi , B. A. Bambah , A. Bat , K. Bays , R. Bernstein , T. J. C. Bezerra , V. Bhatnagar , D. Bhattarai , B. Bhuyan , J. Bian , A. C. Booth , R. Bowles , B. Brahma , C. Bromberg , N. Buchanan , A. Butkevich , S. Calvez , T. J. Carroll , E. Catano-Mur , J. P. Cesar , A. Chatla , S. Chaudhary , R. Chirco , B. C. Choudhary , A. Christensen , M. F. Cicala , T. E. Coan , A. Cooleybeck , C. Cortes-Parra , D. Coveyou , L. Cremonesi , G. S. Davies , P. F. Derwent , Z. Djurcic , M. Dolce , D. Doyle , D. Dueñas Tonguino , E. C. Dukes , A. Dye , R. Ehrlich , E. Ewart , P. Filip , J. Franc , M. J. Frank , H. R. Gallagher , F. Gao , A. Giri , R. A. Gomes , M. C. Goodman , M. Groh , R. Group , A. Habig , F. Hakl , J. Hartnell , R. Hatcher , M. He , K. Heller , V Hewes , A. Himmel , Y. Ivaneev , A. Ivanova , B. Jargowsky , J. Jarosz , C. Johnson , M. Judah , I. Kakorin , D. M. Kaplan , A. Kalitkina , J. Kleykamp , O. Klimov , L. W. Koerner , L. Kolupaeva , R. Kralik , A. Kumar , C. D. Kuruppu , V. Kus , T. Lackey , K. Lang , J. Lesmeister , A. Lister , J. Liu , J. A. Lock , M. Lokajicek , M. MacMahon , S. Magill , W. A. Mann , M. T. Manoharan , M. Manrique Plata , M. L. Marshak , M. Martinez-Casales , V. Matveev , B. Mehta , M. D. Messier , H. Meyer , T. Miao , V. Mikola , W. H. Miller , S. Mishra , S. R. Mishra , A. Mislivec , R. Mohanta , A. Moren , A. Morozova , W. Mu , L. Mualem , M. Muether , K. Mulder , D. Myers , D. Naples , A. Nath , S. Nelleri , J. K. Nelson , R. Nichol , E. Niner , A. Norman , A. Norrick , T. Nosek , H. Oh , A. Olshevskiy , T. Olson , M. Ozkaynak , A. Pal , J. Paley , L. Panda , R. B. Patterson , G. Pawloski , O. Petrova , R. Petti , L. R. Prais , A. Rafique , V. Raj , M. Rajaoalisoa , B. Ramson , M. Ravelhofer , B. Rebel , P. Roy , O. Samoylov , M. C. Sanchez , S. Sánchez Falero , P. Shanahan , P. Sharma , A. Shmakov , A. Sheshukov , S. Shukla , D. K. Singha , W. Shorrock , I. Singh , P. Singh , V. Singh , E. Smith , J. Smolik , P. Snopok , N. Solomey , A. Sousa , K. Soustruznik , M. Strait , L. Suter , A. Sutton , K. Sutton , S. Swain , C. Sweeney , A. Sztuc , B. Tapia Oregui , P. Tas , T. Thakore , J. Thomas , E. Tiras , Y. Torun , J. Tripathi , J. Trokan-Tenorio , J. Urheim , P. Vahle , Z. Vallari , J. Vasel , J. D. Villamil , K. J. Vockerodt , T. Vrba , M. Wallbank , M. Wetstein , D. Whittington , D. A. Wickremasinghe , T. Wieber , J. Wolcott , M. Wrobel , S. Wu , W. Wu , Y. Xiao , B. Yaeggy , A. Yahaya , A. Yankelevich , K. Yonehara , Y. Yu , S. Zadorozhnyy , J. Zalesak , R. Zwaska

Experimental data on rare $B$-meson decays indicate deviations from Standard Model predictions. In studies of these decays, possible new sources of CP violation are often neglected. We discuss CP violation in the rare $B$-meson decays $B\to…

High Energy Physics - Phenomenology · Physics 2024-04-12 Robert Fleischer , Eleftheria Malami , Anders Rehult , K. Keri Vos

We perform a comparison of the different future neutrino oscillation experiments based on the achievable precision in the determination of the fundamental parameters theta_{13} and the CP phase, delta, assuming that theta_{13} is in the…

High Energy Physics - Phenomenology · Physics 2015-06-04 Pilar Coloma , Andrea Donini , Enrique Fernandez-Martinez , Pilar Hernandez

Tests of models for new physics appearing in neutrino experiments often involve global fits to a quantum mechanical effect called neutrino oscillations. This paper introduces students to methods commonly used in these global fits starting…

High Energy Physics - Phenomenology · Physics 2024-08-09 J. M. Hardin

In the next decade, a number of experiments will attempt to determine the neutrino mass hierarchy. Feasibility studies for such experiments generally determine the expected value of Delta chi^2. As the hierarchy is a discrete choice, Delta…

High Energy Physics - Phenomenology · Physics 2016-04-27 Emilio Ciuffoli , Jarah Evslin , Xinmin Zhang

Precision measurement of the neutrino mixing parameters and the determination of mass hierarchy are the primary goals of the present and upcoming neutrino experiments. In this work, we study the sensitivity of T2K,NO$\nu$A and LBNE…

High Energy Physics - Phenomenology · Physics 2015-06-22 K. N. Deepthi , C. Soumya , R. Mohanta

Constraints from clock-comparison experiments on violations of Lorentz and CPT symmetry are investigated in the context of a general Lorentz-violating extension of the standard model. The experimental signals are shown to depend on the…

High Energy Physics - Phenomenology · Physics 2009-09-25 Alan Kostelecky , Charles Lane

We examine how large violation of CP and T is allowed in long base line neutrino experiments. When we attribute only the atmospheric neutrino anomaly to neutrino oscillation we may have large CP violation effect. When we attribute both the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Jiro Arafune , Joe Sato

We discuss the connection between observable CP violation in the lepton sector, the properties of heavy neutrinos and the baryon asymmetry of the universe in the minimal seesaw model. A measurement of the Dirac phase $\delta$ would allow to…

High Energy Physics - Phenomenology · Physics 2016-11-28 Marco Drewes , Bjorn Garbrecht , Dario Gueter , Juraj Klaric

In a more general electroweak theory, there could be Higgs particles that are odd under $CP$, and also Higgs-like particles which are not eigenstates of $CP$. We discuss distributions which for the Bjorken process are sensitive to the $CP$…

High Energy Physics - Phenomenology · Physics 2010-11-01 Arild Skjold , Per Osland

Aiming at a model-independent analysis of possible new physics effects in semileptonic processes at various energy scales, we list and study a complete set of $SU(3)_c\times SU(2)_L\times U(1)_Y$ invariant 4-Fermi operators which consist of…

High Energy Physics - Phenomenology · Physics 2007-05-23 We-Fu Chang , John N. Ng
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