Searching For A Nondiagonal Mass Varying Mechanism In The νμ-ντ System

Abstract

We use atmospheric neutrino data and MINOS data to constrain the MaVaN (mass varying neutrinos) mechanism. The MaVaN model was largely studied in cosmology scenarios and comes from the coupling of the neutrinos with a neutral scalar depending on the local matter density. For atmospheric neutrinos, this new interaction affects the neutrino propagation inside the Earth, and as consequence, induces modifications in their oscillation pattern. To perform such test for a nonstandard oscillation mechanism with a nondiagonal neutrino coupling in the mass basis, we analyze the angular distribution of atmospheric neutrino events as seen by the Super-Kamiokande experiment for the events in the sub-GeV and multi-GeV range and muon neutrinos (antineutrinos) in the MINOS experiment. From the combined analysis of these two sets of data we obtain the best fit for Δm322=2.45×10-3 eV2, sin2(θ23)=0.42 and MaVaN parameter α32=0.28 with modest improvement, Δχ2=1.8, over the standard oscillation scenario. The combination of MINOS data and Super-Kamiokande data prefers small values of MaVaN parameter α32<0.31 at 90% C. L. © 2014 American Physical Society.901ICTP; Abdus Salam International Centre for Theoretical PhysicsTauber, J., (2013) Astron. Astrophys., , (Planck Collaboration), doi: 10.1051/0004-6361/201321529. AAEJAF 0004-6361Jae, A., (2013) Astron. Astrophys., , (Planck Collaboration), doi: 10.1051/0004-6361/201321546. AAEJAF 0004-6361Tegmark, M., Eisenstein, D.J., Strauss, M.A., Weinberg, D.H., Blanton, M.R., Frieman, J.A., Fukugita, M., York, D.G., Cosmological constraints from the SDSS luminous red galaxies (2006) Physical Review D - Particles, Fields, Gravitation and Cosmology, 74 (12), p. 123507. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevD.74.123507&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevD.74.123507Riess, A.G., Filippenko, A.V., Challis, P., Clocchiatti, A., Diercks, A., Garnavich, P.M., Gilliland, R.L., Kirshner, R.P., Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant (1998) Astronomical Journal, 116 (3), pp. 1009-1038. , DOI 10.1086/300499Perlmutter, S., (1999) Astrophys. J., 517, p. 565. , (Supernova Cosmology Project Collaboration),. ASJOAB 0004-637X 10.1086/307221Astier, P., Guy, J., Regnault, N., Pain, R., Aubourg, E., Balam, D., Basa, S., Walton, N., The supernova legacy survey: Measurement of ΩM, ΩΛand w from the first year data set (2006) Astronomy and Astrophysics, 447 (1), pp. 31-48. , DOI 10.1051/0004-6361:20054185Einstein, A., (1917) Sitzungsber. Preuss. Akad. Wiss. Berlin (Math. Phys.), 1917, p. 142Weinberg, S., (1989) Rev. Mod. Phys., 61, p. 1. , RMPHAT 0034-6861 10.1103/RevModPhys.61.1Dolgov, A.D., (2004) Proceedings of 18th les Rencontres de Physique de la Vallee d'Aoste, 34. , in, Frascati Physics Series, edited by M. Greco (INFN, Frascati, Rome), Vol.Fardon, R., Nelson, A.E., Weiner, N., J. Cosmol. Astropart. Phys., 2004 (10), p. 005. , JCAPBP 1475-7516 10.1088/1475-7516/2004/10/005Kaplan, D.B., Nelson, A.E., Weiner, N., (2004) Phys. Rev. Lett., 93, p. 091801. , PRLTAO 0031-9007 10.1103/PhysRevLett.93.091801Gu, P., Wang, X., Zhang, X., Dark energy and neutrino mass limits from baryogenesis (2003) Physical Review D, 68 (8), p. 087301. , DOI 10.1103/PhysRevD.68.087301Bi, X.-J., Gu, P., Wang, X., Zhang, X., Thermal leptogenesis in a model with mass varying neutrinos (2004) Physical Review D, 69 (11), p. 113007. , DOI 10.1103/PhysRevD.69.113007Afshordi, N., Zaldarriaga, M., Kohri, K., (2005) Phys. Rev. D, 72, p. 065024. , PRVDAQ 1550-7998 10.1103/PhysRevD.72.065024Honda, M., Takahashi, R., Tanimoto, M., J. High Energy Phys., 2006 (1), p. 042. , JHEPFG 1029-8479 10.1088/1126-6708/2006/01/042Barger, V., Huber, P., Marfatia, D., Solar mass-varying neutrino oscillations (2005) Physical Review Letters, 95 (21), pp. 1-4. , http://oai.aps.org/oai/?verb=ListRecords&metadataPrefix= oai_apsmeta_2&set=journal:PRL:95, DOI 10.1103/PhysRevLett.95.211802, 211802Cirelli, M., Gonzalez-Garcia, M.C., Pena-Garay, C., Mass varying neutrinos in the Sun (2005) Nuclear Physics B, 719 (1-2), pp. 219-233. , DOI 10.1016/j.nuclphysb.2005.04.034, PII S0550321305003299Gonzalez-Garcia, M.C., De Holanda, P.C., Zukanovich Funchal, R., (2006) Phys. Rev. D, 73, p. 033008. , PRVDAQ 1550-7998 10.1103/PhysRevD.73.033008De Holanda, P.C., J. Cosmol. Astropart. Phys., 2009 (7), p. 024. , JCAPBP 1475-7516 10.1088/1475-7516/2009/07/024Rossi-Torres, F., Guzzo, M.M., De Holanda, P.C., Peres, O.L.G., (2011) Phys. Rev. D, 84, p. 053010. , PRVDAQ 1550-7998 10.1103/PhysRevD.84.053010Carneiro, M.F., De Holanda, P.C., (2013) Adv. High Energy Phys., 2013, p. 293425. , 1687-7357 10.1155/2013/293425Shiraishi, K.K., (2006), http://www-sk.icrr.u-tokyo.ac.jp/doc/sk/pub/, Ph.D. thesis, University of WashingtonAbe, K., (2008) Phys. Rev. D, 77, p. 052001. , (Super-Kamiokande Collaboration),. PRVDAQ 1550-7998 10.1103/PhysRevD.77. 052001Adamson, P., (2013) Phys. Rev. Lett., 110, p. 251801. , (MINOS Collaboration),. PRLTAO 0031-9007 10.1103/PhysRevLett.110.251801Adamson, P., (2011) Phys. Rev. Lett., 106, p. 181801. , (MINOS Collaboration),. PRLTAO 0031-9007 10.1103/PhysRevLett.106.181801In the MaVaN mechanism, neutrino and antineutrinos have the same oscillation probabilityGratieri, D.R., (2012), http://webbif.ifi.unicamp.br/tesesOnline/teses/IF1564.pdf, Ph.D. thesis, State University at Campinas (UNICAMP)Dziewonski, A.D., Anderson, D.L., (1981) Phys. Earth Planet. Inter., 25, p. 297. , PEPIAM 0031-9201 10.1016/0031-9201(81)90046-7For a good reference on kinematical constraints, see [30]Goldanski, V.I., Rosenthal, I.L., (1961) Kinematics of Nuclear Reactions, , (Oxford University Press, New York)Honda, M., Kajita, T., Kasahara, K., Midorikawa, S., Sanuki, T., (2007) Phys. Rev. D, 75, p. 043006. , PRVDAQ 1550-7998 10.1103/PhysRevD.75.043006Gonzalez-Garcia, M.C., Nunokawa, H., Peres, O.L.G., Stanev, T., Valle, J.W.F., (1998) Phys. Rev. D, 58, p. 033004. , PRVDAQ 0556-2821 10.1103/PhysRevD.58.033004Strumia, A., Vissani, F., (2003) Phys. Lett. B, 564, p. 42. , PYLBAJ 0370-2693 10.1016/S0370-2693(03)00616-6Paschos, E.A., Yu, J.Y., Neutrino interactions in oscillation experiments (2002) Physical Review D, 65 (3), p. 033002. , DOI 10.1103/PhysRevD.65.033002Hosaka, J., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Saji, C., Three flavor neutrino oscillation analysis of atmospheric neutrinos in Super-Kamiokande (2006) Physical Review D - Particles, Fields, Gravitation and Cosmology, 74 (3), p. 032002. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevD.74.032002&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevD.74.032002http://www-numi.fnal.gov/PublicInfo/forscientists.html, The (Equation presented) is avaliable inGonzalez-Garcia, M.C., Maltoni, M., Salvado, J., Schwetz, T., J. High Energy Phys., 2012 (12), p. 123. , JHEPFG 1029-8479 10.1007/JHEP12(2012)12