178 citations · 1.2k across the 45 of their papers we have counts for
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Sterile sector impacting the correlations and degeneracies among mixing parameters at the Deep Underground Neutrino Experiment
Sabila Parveen, Mehedi Masud, Mary Bishai +1
We investigate the physics potential of the upcoming Deep Underground Neutrino Experiment (DUNE) in probing active-sterile mixing. We present analytic expressions for relevant osci…
Distinguishing between Dirac and Majorana neutrinos using temporal correlations
Bhavya Soni, Sheeba Shafaq, Poonam Mehta
In the context of two flavour neutrino oscillations, it is understood that the mixing matrix is parameterized by one angle and a Majorana phase. However, this phase doe…
Signals of eV-scale sterile neutrino at long baseline neutrino experiments
Sabila Parveen, Kiran Sharma, Sudhanwa Patra +1
While most of the results of the neutrino oscillation experiments can be accommodated within the standard paradigm of three active flavor, there are tantalizing hints of an light e…
Investigating Leggett-Garg inequality in neutrino oscillations -- role of decoherence and decay
Sheeba Shafaq, Tanmay Kushwaha, Poonam Mehta
Neutrinos, due to their weakly interacting nature, provide us with a unique opportunity to test foundations of quantum mechanics over macroscopic distances. There has been consider…
Non-standard neutrino oscillations: perspective from unitarity triangles
Mehedi Masud, Poonam Mehta, Christoph A. Ternes +1
We formulate an alternative approach based on unitarity triangles to describe neutrino oscillations in presence of non-standard interactions (NSI). Using perturbation theory, we de…
Physics prospects with the second oscillation maximum at Deep Underground Neutrino Experiment
Jogesh Rout, Sheeba Shafaq, Mary Bishai +1
Current long-baseline neutrino-oscillation experiments such as NOA and T2K are mainly sensitive to physics in the neighbourhood of the first oscillation maximum of the $ν_μ\to ν…
Enhanced violation of Leggett-Garg Inequality in three flavour neutrino oscillations via non-standard interactions
Sheeba Shafaq, Poonam Mehta
Neutrino oscillations occur due to non-zero masses and mixings and most importantly they are believed to maintain quantum coherence even over astrophysical length scales. In the pr…
Impact of high energy beam tunes on the sensitivities to the standard unknowns at DUNE
Jogesh Rout, Samiran Roy, Mehedi Masud +2
Even though neutrino oscillations have been conclusively established, there are a few unanswered questions pertaining to leptonic Charge Parity violation (CPV), mass hierarchy (MH)…
Probing muonic charged current nonstandard interactions at decay-at-rest facilities in conjunction with T2HK
Soumya C., Monojit Ghosh, Sushant K. Raut +2
The muon decay-at-rest (-DAR) facility provides us with an ideal platform to probe purely muonic charged-current nonstandard neutrino interactions (NSIs). We propose to probe th…
Correlations and degeneracies among the NSI parameters with tunable beams at DUNE
Mehedi Masud, Samiran Roy, Poonam Mehta
The Deep Underground Neutrino Experiment (DUNE) is a leading experiment in neutrino physics which is presently under construction. DUNE aims to measure the yet unknown parameters i…
Extricating New Physics Scenarios at DUNE with High Energy Beams
Mehedi Masud, Mary Bishai, Poonam Mehta
The proposed Deep Underground Neutrino Experiment (DUNE) utilizes a wide-band on-axis tunable muon-(anti)neutrino beam with a baseline of 1300 km to search for CP violation with hi…
Can we probe intrinsic CP/T violation and non-unitarity at long baseline accelerator experiments?
Jogesh Rout, Mehedi Masud, Poonam Mehta
One of the fundamental parameters entering neutrino oscillation framework is the leptonic CP phase and its measurement is an important goal of the planned long baseline ex…
Non-standard interactions and the resolution of ordering of neutrino masses at DUNE and other long baseline experiments
Mehedi Masud, Poonam Mehta
In the era of precision neutrino physics, we study the influence of matter NSI on the question of neutrino mass ordering and its resolution. At long baseline experiments, since mat…
Non-standard interactions spoiling the CP violation sensitivity at DUNE and other long baseline experiments
Mehedi Masud, Poonam Mehta
It is by now established that neutrino oscillations occur due to non-zero masses and parameters in the leptonic mixing matrix. The extraction of oscillation parameters may be compl…
Probing CP violation signal at DUNE in presence of non-standard neutrino interactions
Mehedi Masud, Animesh Chatterjee, Poonam Mehta
We discuss the impact of non-standard neutrino matter interactions (NSI) in propagation on the determination of CP phase in the context of the long baseline accelerator experiments…
Testing non-standard neutrino matter interactions in atmospheric neutrino propagation
Animesh Chatterjee, Poonam Mehta, Debajyoti Choudhury +1
We study the effects of non-standard interactions on the oscillation pattern of atmospheric neutrinos. We use neutrino oscillograms as our main tool to infer the role of non-standa…
Interplay of energy dependent astrophysical neutrino flavor ratios and new physics effects
Poonam Mehta, Walter Winter
We discuss the importance of flavor ratio measurements in neutrino telescopes, such as by measuring the ratio between muon tracks to cascades, for the purpose of extracting new phy…
Reply to the comment on "Topological phase in two flavor neutrino oscillations"
Poonam Mehta
In a recent paper [arXiv:0901.0790], we showed that there is a neat geometric interpretation of two flavor neutrino oscillation formulae, and that the geometric phase involved in t…
Maximal mixing as a `sum' of small mixings
Joydeep Chakrabortty, Anjan S. Joshipura, Poonam Mehta +1
In models with two sources of neutrino masses, we look at the possibility of generating maximal/large mixing angles in the total mass matrix, where both the sources have only small…
Geometric imprint of CP violation in two flavor neutrino oscillations
Poonam Mehta
In vacuum or constant density matter, the two flavor neutrino oscillation formulae are insensitive to the presence of CP violating phases owing to the fact that the CP phase can be…
Topological phase in two flavor neutrino oscillations
Poonam Mehta
We show that the phase appearing in neutrino flavor oscillation formulae has a geometric and topological contribution. We identify a topological phase appearing in the two flavor n…
Mass Hierarchy Determination via future Atmospheric Neutrino Detectors
Raj Gandhi, Pomita Ghoshal, Srubabati Goswami +3
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…
Probing the Neutrino Mass Hierarchy via Atmospheric Survival Rates in Megaton Water Cerenkov Detectors
Raj Gandhi, Pomita Ghoshal, Srubabati Goswami +2
The neutrino mass hierarchy, presently unknown, is a powerful discriminator among various classes of unification theories. We show that the survival rate in atmosph…
Working Group Report: Neutrino and Astroparticle Physics
Srubabati Goswami, Raghavan Rangarajan, K. Agashe +37
This is the report of neutrino and astroparticle physics working group at WHEPP-8. We present the discussions carried out during the workshop on selected topics in the above fields…