Testing non-standard neutrino matter interactions in atmospheric neutrino propagation

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-standard interactions (NSI) parameters at the probability level in the energy range, $E \in [1,20]$ GeV and zenith angle range, $\cos \theta \in [-1,0]$. We compute the event rates for atmospheric neutrino events in presence of NSI parameters in the energy range $E \in [1,10]$ GeV for two different detector configurations - a magnetized iron calorimeter and an unmagnetized liquid Argon time projection chamber which have different sensitivities to NSI parameters due to their complementary characteristics. As an application, we discuss how NSI parameter, $\epsilon_{\mu\tau}$ impacts the determination of the correct octant of $\theta_{23}$.Comment: v2: matches published version in Phys. Rev.

Manual and Electrical Energies in the Visualisation of “Electrical Calcutta”, c. 1890-1925

Through examinations of domestic servants in electrical advertisements and writings this article looks at the imaginations and realities of visions of an “Electrical Calcutta” at the turn of the twentieth century. It argues that the diverse conceptions of an “Electrical Calcutta” were intimately linked to not just the technological and mechanical benefits of electrical technologies, but also the centrality of servants to societal notions of morality, class and social hierarchy, and cultures and discourses of human bodies, labour and energy within the domestic sphere.publishedVersio

Manual and Electrical Energies in the Visualisation of “Electrical Calcutta”, c. 1890-1925

Through examinations of domestic servants in electrical advertisements and writings this article looks at the imaginations and realities of visions of an “Electrical Calcutta” at the turn of the twentieth century. It argues that the diverse conceptions of an “Electrical Calcutta” were intimately linked to not just the technological and mechanical benefits of electrical technologies, but also the centrality of servants to societal notions of morality, class and social hierarchy, and cultures and discourses of human bodies, labour and energy within the domestic sphere.publishedVersio

Optimal configurations of the Deep Underground Neutrino Experiment

We perform a comprehensive study of the ability of the Deep Underground Neutrino Experiment (DUNE) to answer outstanding questions in the neutrino sector. We consider the sensitivities to the mass hierarchy, the octant of [Formula: see text] and to CP violation using data from beam and atmospheric neutrinos. We evaluate the dependencies on the precision with which [Formula: see text] will be measured by reactor experiments, on the detector size, beam power and exposure time, on detector magnetization, and on the systematic uncertainties achievable with and without a near detector. We find that a 35 kt far detector in DUNE with a near detector will resolve the eightfold degeneracy that is intrinsic to long baseline experiments and will meet the primary goals of oscillation physics that it is designed for. </jats:p

Shifting Narratives of Electricity and Energy in Periods of Transition

This special issue aims at providing nuanced and multi-layered understandings of historical choices regarding, and perceptions of, electric supply and electrical technologies, by taking into consideration diverse groups, actors, agencies, and communities in distinct historical and regional settings. It also aims at rethinking energy systems, practices, and transitions through questions of gender, religion, race, design and architecture, material culture, colonialism, nationalism(s), and varied interpretations of tradition and modernity. It insists on reorienting our gaze from centring on electricity to examining electricity within existing energy regimes and sources, to historicise and problematise the place of electricity, electric supply and use within complex conceptions of energy transitions, thereby challenging linear narratives of progress and modernisation.publishedVersio

Search for Boosted Dark Matter at ProtoDUNE

We propose the first experimental test of the inelastic boosted dark matter hypothesis, capitalizing on the new physics potential with the imminent data taking of the ProtoDUNE detectors. More specifically, we explore various experimental signatures at the cosmic frontier, arising in boosted dark matter scenarios, i.e., relativistic, inelastic scattering of boosted dark matter often created by the annihilation of its heavier component which usually comprises of the dominant relic abundance. Although features are unique enough to isolate signal events from potential backgrounds, vetoing a vast amount of cosmic background is rather challenging as the detectors are located on the ground. We argue, with a careful estimate, that such backgrounds nevertheless can be well under control by performing dedicated analyses after data acquisition. We then discuss some phenomenological studies which can be achieved with ProtoDUNE, employing a dark photon scenario as our benchmark dark-sector model.Comment: Supplemental material include