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Related papers: Resolving the Mass Hierarchy with Atmospheric Neut…

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We study the problem of determination of the sign of Delta m^2_{31}, or the neutrino mass hierarchy, through observations of atmospheric neutrinos in future detectors. We consider two proposed detector types : (a) Megaton sized water…

High Energy Physics - Phenomenology · Physics 2008-11-26 Raj Gandhi , Pomita Ghoshal , Srubabati Goswami , Poonam Mehta , S Uma Sankar , Shashank Shalgar

The recent discovery by the Daya-Bay and RENO experiments, that \theta_{13} is nonzero and relatively large, significantly impacts existing experiments and the planning of future facilities. In many scenarios, the nonzero value of…

High Energy Physics - Phenomenology · Physics 2012-09-05 Vernon Barger , Raj Gandhi , Pomita Ghoshal , Srubabati Goswami , Danny Marfatia , Suprabh Prakash , Sushant K. Raut , S. Uma Sankar

It is by now established that neutrinos mix, have (different) non-zero masses, and therefore oscillate. The oscillation parameters themselves, however, are not all well-known. An open problem is that of the neutrino mass hierarchy. We study…

High Energy Physics - Phenomenology · Physics 2009-11-10 D. Indumathi , M. V. N. Murthy

The possibility to determine the type of neutrino mass hierarchy by studying atmospheric neutrino oscillations with a detector capable to distinguish between neutrino and antineutrino events, such as magnetized iron calorimeters, is…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. T. Petcov , T. Schwetz

We describe a method for determining the hierarchy of the neutrino mass spectrum and theta_13 through remote detection of antineutrinos from a nuclear reactor. This method utilizing a single, 10-kt scintillating liquid detector at a…

High Energy Physics - Experiment · Physics 2008-11-26 John Learned , Steve Dye , Sandip Pakvasa , Robert Svoboda

We examine the possibility of determining the neutrino mass hierarchy in the limit \theta_{13} = 0 using atmospheric neutrinos as the source. In this limit, in which \theta_{13} driven matter effects are absent, independent measurements of…

High Energy Physics - Phenomenology · Physics 2014-11-18 Raj Gandhi , Pomita Ghoshal , Srubabati Goswami , S Uma Sankar

We have studied the mass hierarchy with atmospheric neutrinos considering the muon energy and zenith angle of the event at the magnetized iron calorimeter detector. For $\chi^2$ analysis we have migrated the number of events from neutrino…

High Energy Physics - Phenomenology · Physics 2010-02-22 Abhijit Samanta

We show that by combining high precision measurements of the atmospheric delta m^2 in both the electron and muon neutrino (or anti-neutrino) disappearance channels one can determine the neutrino mass hierarchy. The required precision is a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hiroshi Nunokawa , Stephen Parke , Renata Zukanovich Funchal

We show that the measurements of 10 GeV atmospheric neutrinos by an upcoming array of densely packed phototubes buried deep inside the IceCube detector at the South Pole can be used to determine the neutrino mass hierarchy for values of…

High Energy Physics - Phenomenology · Physics 2008-11-11 Olga Mena , Irina Mocioiu , Soebur Razzaque

Determination of the neutrino mass hierarchy in a reactor neutrino experiment at medium baseline is discussed. Observation of the interference effects between the \Delta m^2_{31} and \Delta m^2_{32} oscillations enables a relative…

High Energy Physics - Experiment · Physics 2013-08-20 Yu-Feng Li , Jun Cao , Yifang Wang , Liang Zhan

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 explore the physics potential of multi-megaton scale ice or water Cherenkov detectors with low ($\sim 1$ GeV) threshold. Using some proposed characteristics of the PINGU detector setup we compute the distributions of events versus…

High Energy Physics - Phenomenology · Physics 2013-04-29 E. Kh. Akhmedov , Soebur Razzaque , A. Yu. Smirnov

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

Large mass ice/water Cherenkov experiments, optimized to detect low energy (1-20 GeV) atmospheric neutrinos, have the potential to discriminate between normal and inverted neutrino mass hierarchies. The sensitivity depends on several model…

High Energy Physics - Experiment · Physics 2015-06-12 D. Franco , C. Jollet , A. Kouchner , V. Kulikovskiy , A. Meregaglia , S. Perasso , T. Pradier , A. Tonazzo , V. Van Elewyck

The neutrino mass hierarchy, presently unknown, is a powerful discriminator among various classes of unification theories. We show that the $\nu_{\mu} + \bar{\nu}_\mu$ survival rate in atmospheric events can provide a novel method of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Raj Gandhi , Pomita Ghoshal , Srubabati Goswami , Poonam Mehta , S Uma Sankar

Recently a new method for determining the neutrino mass hierarchy by comparing the effective values of the atmospheric \Delta m^2 measured in the electron neutrino disappearance channel, \Delta m^2(ee), with the one measured in the muon…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. Minakata , H. Nunokawa , S. J. Parke , R. Zukanovich Funchal

High density magnetized detectors are well suited to exploit the outstanding purity and intensities of novel neutrino sources like Neutrino Factories and Beta Beams. They can also provide independent measurements of leptonic mixing…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Donini , E. Fernandez-Martinez , P. Migliozzi , S. Rigolin , L. Scotto Lavina , M. Selvi , T. Tabarelli de Fatis , F. Terranova

We investigate the sensitivity of some of the proposed next-generation neutrino experiments to a galactic supernova. In particular, we study how well the supernova parameters (the average energies and luminosities) can be separated from the…

High Energy Physics - Phenomenology · Physics 2010-10-27 Solveig Skadhauge , Renata Zukanovich Funchal

Determination of the neutrino mass hierarchy using a reactor neutrino experiment at $\sim$60 km is analyzed. Such a measurement is challenging due to the finite detector resolution, the absolute energy scale calibration, as well as the…

Instrumentation and Detectors · Physics 2015-03-20 X. Qian , D. A. Dwyer , R. D. McKeown , P. Vogel , W. Wang , C. Zhang

We discuss the neutrino mass hierarchy determination with atmospheric neutrinos in PINGU (Precision IceCube Next Generation Upgrade), based on a simulation with the GLoBES software including the full three flavor framework and parameter…

High Energy Physics - Phenomenology · Physics 2013-08-09 Walter Winter
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