151 citations · 631 across the 29 of their papers we have counts for
31 papers
Probing T and CP Violation at DUNE and T2HK
Sabya Sachi Chatterjee, Sudhanwa Patra, Thomas Schwetz +1
We study the sensitivity of the DUNE and T2HK long-baseline experiments to time reversal (T) violation in neutrino oscillations. Rather than the conventional approach of exchanging…
Oscillating Neutrinos vs. Oscillating Scalars: Constraining Scalar Dark Matter-Induced Neutrino Mass
Kierthika Chathirathas, Sabya Sachi Chatterjee, Thomas Schwetz
We consider the hypothesis that neutrino masses are generated by a coupling to an ultra-light (pseudo-)scalar field, which provides the dark matter in the universe. This leads to t…
Matter Flavor Conversion Mediated by Pseudo-Sterile States as the Possible Origin of Neutrino Oscillation Anomalies
Sabya Sachi Chatterjee, Antonio Palazzo
Neutrino oscillation experiments present anomalous results across a vast range of baselines and energies. Here we show that a 3+1 scenario in which sterile neutrinos feel a novel m…
Testing the heavy decaying sterile neutrino hypothesis at the DUNE near detector
Sabya Sachi Chatterjee, Stéphane Lavignac, O. G. Miranda
One of the most convincing explanations of the LSND and MiniBooNE anomalies relies on a heavy, mostly sterile neutrino with a small muon neutrino component, which decays to an elec…
T versus CP effects in DUNE and T2HK
Sabya Sachi Chatterjee, Sudhanwa Patra, Thomas Schwetz +1
Time reversal (T) symmetry violations in neutrino oscillations imply the presence of an -odd component in the transition probability at fixed neutrino energy, with denoting…
Neutrino Theory in the Precision Era
Asmaa Abada, Gabriela Barenboim, Toni Bertólez-Martínez +76
This document summarises discussions on future directions in theoretical neutrino physics, which are the outcome of a neutrino theory workshop held at CERN in February 2025. The st…
Status of tension between NOA and T2K after Neutrino 2024 and possible role of non-standard neutrino interactions
Sabya Sachi Chatterjee, Antonio Palazzo
In a previous work we have shown that the data presented by the two long-baseline accelerator experiments NOA and T2K at the Neutrino 2020 conference displayed a tension, and th…
Model-independent search for T violation with T2HK and DUNE
Sabya Sachi Chatterjee, Sudhanwa Patra, Thomas Schwetz +1
We consider the time reversal (T) transformation in neutrino oscillations in a model-independent way by comparing the observed transition probabilities at two different baselines a…
Exploring the Sensitivity to Non-Standard Neutrino Interactions of NaI and Cryogenic CsI Detectors at the Spallation Neutron Source
Sabya Sachi Chatterjee, Stéphane Lavignac, O. G. Miranda +1
After the first observation of coherent elastic neutrino-nucleus scattering (CENS) by the COHERENT collaboration, many efforts are being made to improve the measurement of this…
Constraining Non-Standard Interactions with Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
Sabya Sachi Chatterjee, Stéphane Lavignac, O. G. Miranda +1
The European Spallation Source (ESS), currently under construction in Sweden, will provide an intense pulsed neutrino flux allowing for high-statistics measurements of coherent ela…
Resolving the NOA and T2K tension in the presence of Neutrino Non-Standard interactions
Sabya Sachi Chatterjee, Antonio Palazzo
The current data of the two long-baseline accelerator experiments NOA and T2K, shows a tension at more than 90 C.L. for 2 degrees of freedom, in the determination of the sta…
Nonunitarity of the lepton mixing matrix at the European Spallation Source
Sabya Sachi Chatterjee, O. G. Miranda, M. Tórtola +1
If neutrinos get mass through the exchange of lepton mediators, as in seesaw schemes, the neutrino appearance probabilities in oscillation experiments are modified due to effective…
Impact of Improved Energy Resolution on DUNE sensitivity to Neutrino Non-Standard Interactions
Sabya Sachi Chatterjee, P. S. Bhupal Dev, Pedro A. N. Machado
The full physics potential of the next-generation Deep Underground Neutrino Experiment (DUNE) is still being explored. In particular, there have been some recent studies on the pos…
Neutrino mass ordering obfuscated by the NSI
Francesco Capozzi, Sabya Sachi Chatterjee, Antonio Palazzo
Determination of the neutrino mass ordering (NMO) is one of the biggest priorities in the intensity frontier of high energy particle physics. To accomplish that goal a lot of effor…
Non-standard neutrino interactions as a solution to the NOA and T2K discrepancy
Sabya Sachi Chatterjee, Antonio Palazzo
The latest data of the two long-baseline accelerator experiments NOA and T2K, interpreted in the standard 3-flavor scenario, display a discrepancy. A mismatch in the determinati…
Interpretation of NOA and T2K data in the presence of a light sterile neutrino
Sabya Sachi Chatterjee, Antonio Palazzo
We study in detail the impact of a light sterile neutrino in the interpretation of the latest data of the long baseline experiments NOA and T2K, assessing the robustness/fragili…
Physics Potential of ESSSB in the presence of a Light Sterile Neutrino
Sanjib Kumar Agarwalla, Sabya Sachi Chatterjee, Antonio Palazzo
ESSSB is a proposed neutrino super-beam project at the ESS facility. We study the performance of this setup in the presence of a light eV-scale sterile neutrino, considering 540…
Neutrino mass ordering obscured by non-standard interactions
Francesco Capozzi, Sabya Sachi Chatterjee, Antonio Palazzo
One of the major open questions in particle physics is the issue of the neutrino mass ordering (NMO). The current data of the two long-baseline experiments NOA and T2K, interpre…
Enhancing Sensitivity to Non-Standard Neutrino Interactions at INO combining muon and hadron information
Amina Khatun, Sabya Sachi Chatterjee, Tarak Thakore +1
The neutral current non-standard interactions (NSI's) of neutrino with matter fermions while propagating through long distances inside the Earth matter can give rise to the extra m…
Neutrino Non-Standard Interactions: A Status Report
P. S. Bhupal Dev, K. S. Babu, Peter B. Denton +23
This report summarizes the present status of neutrino non-standard interactions (NSI). After a brief overview, several aspects of NSIs are discussed, including connection to neutri…
Signatures of a Light Sterile Neutrino in T2HK
Sanjib Kumar Agarwalla, Sabya Sachi Chatterjee, Antonio Palazzo
We investigate the performance of T2HK in the presence of a light eV scale sterile neutrino. We study in detail its influence in resolving fundamental issues like mass hierarchy, C…
Addressing Neutrino Mixing Models with DUNE and T2HK
Sanjib Kumar Agarwalla, Sabya Sachi Chatterjee, S. T. Petcov +1
We consider schemes of neutrino mixing arising within the discrete symmetry approach to the well-known flavour problem. We concentrate on mixing schemes in which the cosine of…
Cornering the revamped BMV model with neutrino oscillation data
Sabya Sachi Chatterjee, Mehedi Masud, Pedro Pasquini +1
Using the latest global determination of neutrino oscillation parameters from~\cite{deSalas:2017kay} we examine the status of the simplest revamped version of the BMV (Babu-Ma-Vall…
Can we measure octant in 3+1 scheme?
Sanjib Kumar Agarwalla, Sabya Sachi Chatterjee, Antonio Palazzo
Current 3 global fits predict two degenerate solutions for : one lies in lower octant (), and the other belongs to higher octant (). Here, we s…