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Related papers: Neutrino mass hierarchy and matter effects

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A neutrino-oscillation analysis is performed of the more finely binned Super-K atmospheric, MINOS, and CHOOZ data in order to examine the impact of neutrino hierarchy in this data set upon the value of $\theta_{13}$ and the deviation of…

Nuclear Theory · Physics 2011-06-21 J. Escamilla-Roa , D. C. Latimer , D. J. Ernst

We study models of neutrino masses which naturally give rise to an inverted mass hierarchy and bi-maximal mixing. The models are based on the see-saw mechanism with three right-handed neutrinos, which generates a single mass term of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. F. King , N. Nimai Singh

Earth's matter affects the oscillation of atmospheric neutrinos and antineutrinos differently depending on the neutrino mass ordering (NMO). As more neutrinos than antineutrinos are expected to be detected in the IceCube detector, this…

High Energy Physics - Experiment · Physics 2026-04-28 J. H. Peterson , M. Jacquart

We study the role that the future detection of the neutrino burst from a galactic supernova can play in the reconstruction of the neutrino mass spectrum. We consider all possible 3$\nu$ mass and flavor spectra which describe the solar and…

High Energy Physics - Phenomenology · Physics 2009-10-31 Amol S. Dighe , Alexei Yu. Smirnov

We study matter effects which arise in the muon neutrino oscillation and survival probabilities relevant to atmospheric neutrino and very long baseline beam experiments. The inter-relations between the three probabilities P_{\mu e}, P_{\mu…

High Energy Physics - Phenomenology · Physics 2009-11-10 Raj Gandhi , Pomita Ghoshal , Srubabati Goswami , Poonam Mehta , S Uma Sankar

We perform a detailed study of the Earth matter effects on supernova neutrinos. The dependences of these effects on the properties of the original neutrino fluxes, on the trajectory of the neutrinos inside the Earth and on the oscillation…

High Energy Physics - Phenomenology · Physics 2016-09-06 C. Lunardini , A. Yu. Smirnov

The mixing of three and four massive neutrinos is considered. It is shown that the neutrino oscillation data are not compatible with a hierarchy of couplings in the three-neutrino case. In the case of four neutrinos, a hierarchy of masses…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. M. Bilenky , C. Giunti , W. Grimus

Neutrinos have two properties that make them fairly unique from other known particles: extremely low cross sections and flavor changing oscillations. With a good knowledge of the oscillation parameters soon in hand, it will become possible…

High Energy Physics - Phenomenology · Physics 2021-12-30 Peter B. Denton , Rebekah Pestes

We discuss which information on neutrino masses and mixing can be obtained from the results of all neutrino oscillation experiments in the cases of three and four massive neutrinos. We show that in the three-neutrino case the neutrino…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. M. Bilenky , C. Giunti , W. Grimus

Neutrino masses arise via a seesaw mechanism and its mass hierarchy, with assumption that heavy Majorana neutrino mass matrix subject to $\mu-\tau$ symmetry and invariant under a cyclic permutation, are evaluated. Within this scenario, the…

High Energy Physics - Phenomenology · Physics 2010-06-03 Asan Damanik

Do neutrinos have nonzero masses? If they do, then these masses are very tiny, and can be sought only in very sensitive experiments. The most sensitive of these search for neutrino oscillation, a quantum interference effect which requires…

High Energy Physics - Phenomenology · Physics 2017-08-23 Boris Kayser

We derive predictions for the Nadir angle (theta(n)) dependence of the ratio N(mu)/N(e) of the rates of the mu-like and e-like multi-GeV events measured in water-Cerenkov detectors in the case of 3-neutrino oscillations of the atmospheric…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Bernabeu , Sergio Palomares-Ruiz , S. T. Petcov

The pattern of oscillation parameters emerging from current experimental data can be further elucidated by the observation of matter effects. In contrast to planned experiments with conventional neutrino beams, atmospheric neutrinos offer…

High Energy Physics - Phenomenology · Physics 2011-09-13 T. Tabarelli de Fatis

We derive the neutrino flavor transition probabilities with the neutrino treated as a wave packet. The decoherence and dispersion effects from the wave-packet treatment show up as damping and phase-shifting of the plane-wave neutrino…

High Energy Physics - Phenomenology · Physics 2016-06-14 Yat-Long Chan , M. -C. Chu , Ka Ming Tsui , Chan Fai Wong , Jianyi Xu

We discuss all possible schemes with four massive neutrinos inspired by the existing experimental indications in favour of neutrino mixing, namely the atmospheric, solar and LSND neutrino experiments. We argue that the scheme with a…

High Energy Physics - Phenomenology · Physics 2011-04-15 W. Grimus

Building on earlier studies, we investigate the possibility to determine the type of neutrino mass spectrum (i.e., "the neutrino mass hierarchy") in a high statistics reactor electron antineutrino experiment with a relatively large…

High Energy Physics - Phenomenology · Physics 2011-03-28 Pomita Ghoshal , S. T. Petcov

Recent works combining neutrino oscillation and cosmological data to determine the neutrino hierarchy found a range of odds in favour of the normal hierarchy. These results arise from differing approaches to incorporating prior knowledge…

Cosmology and Nongalactic Astrophysics · Physics 2020-04-15 Constance Mahony , Boris Leistedt , Hiranya V. Peiris , Jonathan Braden , Benjamin Joachimi , Andreas Korn , Linda Cremonesi , Ryan Nichol

The neutrino mass ordering is one of the principal unknowns in the neutrino sector. Long baseline neutrino experiments have the potential of resolving this issue as they are sensitive to large matter effects. The superbeam experiment DUNE…

High Energy Physics - Phenomenology · Physics 2017-05-16 Debajyoti Dutta , Pomita Ghoshal , Samiran Roy

Neutrino data lead via the see-saw mechanism to masses of the right handed neutrinos at the intermediate mass scale. Simple formalism is suggested which incorporates the quark - lepton symmetry and allows one to find properties of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Yu. Smirnov

We review how a high-statistics observation of the neutrino signal from a future galactic core-collapse supernova (SN) may be used to discriminate between different neutrino mixing scenarios. Most SN neutrinos are emitted in the accretion…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Tomas