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Author Bonilla, C.; Morisi, S.; Peinado, E.; Valle, J.W.F.
Title Relating quarks and leptons with the T-7 flavour group Type Journal Article
Year 2015 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 742 Issue Pages 99-106
Keywords
Abstract In this letter we present a model for quarks and leptons based on T-7 as flavour symmetry, predicting a canonical mass relation between charged leptons and down-type quarks proposed earlier. Neutrino masses are generated through a Type-I seesaw mechanism, with predicted correlations between the atmospheric mixing angle and neutrino masses. Compatibility with oscillation results leads to lower bounds for the lightest neutrino mass as well as for the neutrinoless double beta decay rates, even for normal neutrino mass hierarchy.
Address [Bonilla, Cesar; Valle, J. W. F.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain, Email: cesar.bonilla@ific.uv.es;
Corporate Author Thesis
Publisher (up) Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000350555900016 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2155
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Author Roy, S.; Morisi, S.; Singh, N.N.; Valle, J.W.F.
Title The Cabibbo angle as a universal seed for quark and lepton mixings Type Journal Article
Year 2015 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 748 Issue Pages 1-4
Keywords PMNS matrix; CKM matrix; Cabibbo angle; Bi-Large mixing; Wolfenstein parameter; Neutrino mixing
Abstract A model-independent ansatz to describe lepton and quark mixing in a unified way is suggested based upon the Cabibbo angle. In our framework neutrinos mix in a “Bi-Large” fashion, while the charged leptons mix as the “down-type” quarks do. In addition to the standard Wolfenstein parameters (lambda, A) two other free parameters (psi, delta) are needed to specify the physical lepton mixing matrix. Through this simple assumption one makes specific predictions for the atmospheric angle as well as leptonic CP violation in good agreement with current observations.
Address [Roy, S.] Gauhati Univ, Dept Phys, Gauhati 781014, Assam, India, Email: meetsubhankar@gmail.com;
Corporate Author Thesis
Publisher (up) Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000359146200001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2342
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Author Boucenna, S.M.; Valle, J.W.F.; Vicente, A.
Title Are the B decay anomalies related to neutrino oscillations? Type Journal Article
Year 2015 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 750 Issue Pages 367-371
Keywords
Abstract Neutrino oscillations are solidly established, with a hint of CP violation just emerging. Similarly, there are hints of lepton universality violation in b -> s transitions at the level of 2.6 sigma. By assuming that the unitary transformation between weak and mass charged leptons equals the leptonic mixing matrix measured in neutrino oscillation experiments, we predict several lepton flavor violating (LFV) B meson decays. We are led to the tantalizing possibility that some LFV branching ratios for B decays correlate with the leptonic CP phase delta characterizing neutrino oscillations. Moreover, we also consider implications for l(i) -> l(j)l(k)l(k) decays.
Address [Boucenna, Sofiane M.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-100044 Frascati, Italy, Email: boucenna@Inf.infn.it;
Corporate Author Thesis
Publisher (up) Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000364250600061 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2470
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Author Kosmas, T.S.; Miranda, O.G.; Papoulias, D.K.; Tortola, M.; Valle, J.W.F.
Title Sensitivities to neutrino electromagnetic properties at the TEXONO experiment Type Journal Article
Year 2015 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 750 Issue Pages 459-465
Keywords Reactor neutrinos; Coherent elastic neutrino-nucleus scattering (CENNS); Weak mixing angle; Neutrino magnetic moment; Neutrino charge radius; Quenching factor
Abstract The possibility of measuring neutral-current coherent elastic neutrino nucleus scattering (CENNS) at the TEXONO experiment has opened high expectations towards probing exotic neutrino properties. Focusing on low threshold Germanium-based targets with kg-scale mass, we find a remarkable efficiency not only for detecting CENNS events due to the weak interaction, but also for probing novel electromagnetic neutrino interactions. Specifically, we demonstrate that such experiments are complementary in performing precision Standard Model tests as well as in shedding light on sub-leading effects due to neutrino magnetic moment and neutrino charge radius. This work employs realistic nuclear structure calculations based on the quasi-particle random phase approximation (QRPA) and takes into consideration the crucial quenching effect corrections. Such a treatment, in conjunction with a simple statistical analysis, shows that the attainable sensitivities are improved by one order of magnitude as compared to previous studies.
Address [Kosmas, T. S.; Papoulias, D. K.] Univ Ioannina, Div Theoret Phys, GR-45110 Ioannina, Greece, Email: hkosmas@uoi.gr;
Corporate Author Thesis
Publisher (up) Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000364250600075 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2472
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Author Cañas, B.C.; Miranda, O.G.; Parada, A.; Tortola, M.; Valle, J.W.F.
Title Updating neutrino magnetic moment constraints Type Journal Article
Year 2016 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 753 Issue Pages 191-198
Keywords
Abstract In this paper we provide an updated analysis of the neutrino magnetic moments (NMMs), discussing both the constraints on the magnitudes of the three transition moments Lambda(i) and the role of the CP violating phases present both in the mixing matrix and in the NMM matrix. The scattering of solar neutrinos off electrons in Borexino provides the most stringent restrictions, due to its robust statistics and the low energies observed, below 1 MeV. Our new limit on the effective neutrino magnetic moment which follows from the most recent Borexino data is 3.1 x 10(-11) mu(B) at 90% C.L. This corresponds to the individual transition magnetic moment constraints: vertical bar Lambda(1)vertical bar <= 5.6 x10(-11)mu(B), vertical bar Lambda(2)vertical bar <= 4.0 x10(-11)mu(B), and vertical bar Lambda(3)vertical bar <= 3.1 x10(-11)mu B(90% C. L.), irrespective of any complex phase. Indeed, the incoherent admixture of neutrino mass eigenstates present in the solar flux makes Borexino insensitive to the Majorana phases present in the NMM matrix. For this reason we also provide a global analysis including the case of reactor and accelerator neutrino sources, presenting the resulting constraints for different values of the relevant CP phases. Improved reactor and accelerator neutrino experiments will be needed in order to underpin the full profile of the neutrino electromagnetic properties.
Address [Canas, B. C.; Miranda, O. G.] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Apdo Postal 14-740, Mexico City 07000, DF, Mexico, Email: bcorduz@fis.cinvestav.mx;
Corporate Author Thesis
Publisher (up) Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000368783600029 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2551
Permanent link to this record