Ushak Rahaman
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View article: Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing
Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing Open
A bstract In this paper, we investigate the effects of ν τ and $$ {\overline{\nu}}_{\tau } $$ detection at the DUNE far detector on the experiment’s sensitivity to Non-Standard Interactions (NSI) in neutrino propagation. We show that…
View article: Dark photon distortions of NO$$\nu $$A and T2K neutrino oscillations
Dark photon distortions of NO$$\nu $$A and T2K neutrino oscillations Open
Dark photons coupling to $$L_\mu -L_\tau $$ lepton number difference are a highly studied light dark matter candidate, with potential to be discovered through their impact on terrestrial neutrino oscillation experiments. We re-exa…
View article: Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing
Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing Open
In this paper, we investigate the effects of $ν_τ$ and $\barν_τ$ detection at the DUNE far detector on the experiment's sensitivity to Non-Standard Interactions (NSI) in neutrino propagation. We show that the strongest observable NSI effec…
View article: Update on non-unitary mixing in the recent NO$ν$A and T2K data
Update on non-unitary mixing in the recent NO$ν$A and T2K data Open
In this letter, we have used a non-unitary mixing scheme to resolve the tension between NO$ν$A and T2K data. It is demonstrated that the results of NO$ν$A and T2K can be explained by the effects by non-unitary mixing arising from $α_{00}$ …
View article: Dark photon distortions of NO$ν$A and T2K neutrino oscillations
Dark photon distortions of NO$ν$A and T2K neutrino oscillations Open
Dark photons coupling to $L_μ-L_τ$ lepton number difference are a highly studied light dark matter candidate, with potential to be discovered through their impact on terrestrial neutrino oscillation experiments. We re-examine this in the l…
View article: Non-Unitary Neutrino Mixing in the NOνA Near Detector Data
Non-Unitary Neutrino Mixing in the NOνA Near Detector Data Open
The νμ→νe oscillation probability over a short baseline (≲1 km) would be negligible for the case when the mixing matrix for three active neutrinos is unitary. However, in the case of a non-unitary mixing of three neutrinos, this probabilit…
View article: A Review of the Tension between the T2K and NOνA Appearance Data and Hints to New Physics
A Review of the Tension between the T2K and NOνA Appearance Data and Hints to New Physics Open
In this article, we review the status of the tension between the long-baseline accelerator neutrino experiments T2K and NOνA. The tension arises mostly due to the mismatch in the apappearance data of the two experiments. We explain how thi…
View article: On the tension between the latest \nova and T2K data
On the tension between the latest \nova and T2K data Open
The latest data from the T2K and \nova experiments show a tension in their preferred values of the oscillation parameters. In this work, we try to identify the source of the tension between the data from these two experiments. An analysis …
View article: Effect of non-unitary mixing on the mass hierarchy and CP violation determination at the Protvino to Orca experiment
Effect of non-unitary mixing on the mass hierarchy and CP violation determination at the Protvino to Orca experiment Open
In this paper, we have estimated the neutrino mass ordering and the CP violation sensitivity of the proposed Protvino to Orca (P2O) experiment after 6 years of data-taking. Both unitary and non-unitary $3\times 3$ neutrino mass mixing have…
View article: Strong signature of non-unitary neutrino mixing in the NO$\nu$A near detector data
Strong signature of non-unitary neutrino mixing in the NO$\nu$A near detector data Open
The $\nu_\mu \to \nu_e$ oscillation probability over short baseline ($\lesssim 1$~km) would be negligible in case the mixing matrix for three active neutrinos is unitary. However, in case of non-unitary mixing of three neutrinos, this prob…
View article: Non-unitary neutrino mixing in the NO$ν$A near detector data
Non-unitary neutrino mixing in the NO$ν$A near detector data Open
The $ν_μ\to ν_e$ oscillation probability over short baseline ($\lesssim 1$~km) would be negligible in case the mixing matrix for three active neutrinos is unitary. However, in case of non-unitary mixing of three neutrinos, this probability…
View article: Searching for non-unitary neutrino oscillations in the present T2K and NO$ν$A data
Searching for non-unitary neutrino oscillations in the present T2K and NO$ν$A data Open
The mixing of three active neutrino flavors is parameterized by the unitary PMNS matrix. If there are more than three neutrino flavors and if the extra generations are heavy isosinglets, the effective $3\times 3$ mixing matrix for the thre…
View article: Tensions between the appearance data of T2K and NOνA
Tensions between the appearance data of T2K and NOνA Open
The long baseline neutrino experiments, T2K and NO[Formula: see text]A, have taken significant amount of data in each of the four channels: (a) [Formula: see text] disappearance, (b) [Formula: see text] disappearance, (c) [Formula: see tex…
View article: Hierarchy sensitivity of NO$\nu$A in light of T2K $\nu_e$ appearance data
Hierarchy sensitivity of NO$\nu$A in light of T2K $\nu_e$ appearance data Open
The $\nu_e$ appearance data of T2K experiment has given a glimpse of the allowed parameters in the hierarchy-$\delta_{CP}$ parameter space. In this paper, we explore how this data affects our expectations regarding the hierarchy sensitivit…
View article: Hierarchy sensitivity of NO$ν$A in light of T2K $ν_e$ appearance data
Hierarchy sensitivity of NO$ν$A in light of T2K $ν_e$ appearance data Open
The $ν_e$ appearance data of T2K experiment has given a glimpse of the allowed parameters in the hierarchy-$δ_{CP}$ parameter space. In this paper, we explore how this data affects our expectations regarding the hierarchy sensitivity of th…