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Results from experiments like LSND and MiniBooNE hint towards the possible presence of an extra eV scale sterile neutrino. The addition of such a neutrino will significantly impact the standard three flavour neutrino oscillations. In…

High Energy Physics - Phenomenology · Physics 2023-07-25 Animesh Chatterjee , Srubabati Goswami , Supriya Pan

Matter effects modify the mixing and the effective masses of neutrinos in a way which depends on the neutrino mass hierarchy. Consequently, for normal and inverted hierarchies the oscillations and flavor conversion results are different.…

High Energy Physics - Phenomenology · Physics 2013-12-30 Alexei Yu. Smirnov

We explore the possibility of simultaneous determination of neutrino mass hierarchy and the CP violating phase by using two identical detectors placed at different baseline distances. We focus on a possible experimental setup using neutrino…

High Energy Physics - Phenomenology · Physics 2010-04-06 Masaki Ishitsuka , Takaaki Kajita , Hisakazu Minakata , Hiroshi Nunokawa

I discuss the sensitivity of future medium baseline reactor antineutrino experiments on the neutrino mass hierarchy. By using the standard chi^2 analysis, we find that the sensitivity depends strongly on the baseline length L and the energy…

High Energy Physics - Phenomenology · Physics 2013-05-01 Yoshitaro Takaesu

Recent measurements of large theta_{13} by Daya Bay and RENO reactor experiments have opened up the possibility of determining the neutrino mass hierarchy, i.e. the sign of the mass squared splitting Delta m_{31}^2, the CP-violating phase…

High Energy Physics - Phenomenology · Physics 2014-04-23 Rupak Dutta , Nita Sinha , Sushant K. Raut

The sensitivity of a huge underground water/ice Cherenkov detector, such as PINGU in IceCube, to the neutrino mass hierarchy, the atmospheric mixing angle and its octant, is studied in detail. Based on the event rate decomposition in the…

High Energy Physics - Phenomenology · Physics 2015-06-18 Shao-Feng Ge , Kaoru Hagiwara

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 relatively large measured value of $\theta_{13}$ has opened up the possibility of determining the neutrino mass hierarchy through earth matter effects. Amongst the current accelerator-based experiments only NOvA has a long enough…

High Energy Physics - Phenomenology · Physics 2015-06-12 Anushree Ghosh , Tarak Thakore , Sandhya Choubey

It is generally believed that neutrino mass hierarchy can be determined at a long baseline experiment, often using accelerator neutrino beams. Reactor neutrino experiments at an intermediate baseline have the capability to distinguish…

High Energy Physics - Experiment · Physics 2012-10-29 Liang Zhan , Yifang Wang , Jun Cao , Liangjian Wen

The determination of the missing $U_{e3}$ element (magnitude and phase) of the PMNS neutrino mixing matrix is possible via the detection of $\numu\to\nue$ oscillations at a baseline $L$ and energy $E$ given by the atmospheric observations,…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. Meregaglia , A. Rubbia

We determine the sensitivity to neutrino oscillation parameters from a study of atmospheric neutrinos in a magnetised detector such as the ICAL at the proposed India-based Neutrino Observatory. In such a detector that can {\em separately}…

High Energy Physics - Phenomenology · Physics 2017-03-08 Lakshmi S. Mohan , D. Indumathi

We show that for long-baseline experiments using a Mt water Cerenkov detector atmospheric neutrino data provide a powerful method to resolve parameter degeneracies. In particular, the combination of long-baseline and atmospheric data…

High Energy Physics - Phenomenology · Physics 2007-05-23 Thomas Schwetz

One of the unknown parameters in neutrino oscillations is the octant of the mixing angle theta_{23}. In this paper, we discuss the possibility of determining the octant of theta_{23} in the long baseline experiments T2K and NOvA in…

High Energy Physics - Phenomenology · Physics 2013-07-11 Animesh Chatterjee , Pomita Ghoshal , Srubabati Goswami , Sushant K. Raut

We describe an approach to the study of neutrino masses that combines quantum optics techniques with radiation detectors to obtain unprecedented sensitivity. With it the search for Majorana neutrino masses down to $\sim$10 meV will become…

High Energy Physics - Experiment · Physics 2019-08-17 M. Danilov , R. DeVoe , A. Dolgolenko , G. Giannini , G. Gratta , P. Picchi , A. Piepke , F. Pietropaolo , P. Vogel , J-L. Vuilleumier , Y-F. Wang , O. Zeldovich

The Daya Bay and RENO experiments have recently observed a non-zero $\theta_{13}$ at more than $5\sigma$ CL. This has important consequences for future neutrino oscillation experiments. We analyze these within the LAGUNA design study which…

High Energy Physics - Phenomenology · Physics 2012-06-19 Pilar Coloma , Tracey Li , Silvia Pascoli

The down-going atmospheric \nu_{\mu} and {\bar{\nu_{\mu}}} fluxes can be significantly altered due to the presence of eV^2-scale active-sterile oscillations. We study the sensitivity of a large Liquid Argon detector and a large magnetized…

High Energy Physics - Phenomenology · Physics 2013-05-30 Raj Gandhi , Pomita Ghoshal

We propose a new parameterization to measure the neutrino mass hierarchy, namely $\Delta=(m_3-m_1)/(m_1+m_3)$ which is dimensionless and varies in the range $[-1,1]$. Taking into account the results of neutrino oscillation experiments,…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-17 Lixin Xu , Qing-Guo Huang

We demonstrate that the detection of shock modulations of the neutrino spectra from a galactic core-collapse supernova is sufficient to obtain a high significance determination of the neutrino mass hierarchy if the supernova event is…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Patrick Huber , Danny Marfatia

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

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 2007-05-23 M. Kachelriess , R. Tomas