Effect of the 2p2h2p2h cross-section uncertainties on an analysis of neutrino oscillations

We report the results of a study aimed at quantifying the impact on the oscillation analysis of the uncertainties associated with the description of the neutrino-nucleus cross section in the two-particle--two-hole sector. The results of our calculations, based on the kinematic method of energy reconstruction and carried out comparing two data-driven approaches, show that the existing discrepancies in the neutrino cross sections have a sizable effect on the extracted oscillation parameters, particularly in the antineutrino channel.Comment: 7 pages, 5 figure

Missing energy and the measurement of the CP-violating phase in neutrino oscillations

In the next generation of long-baseline neutrino oscillation experiments, aiming to determine the charge-parity violating phase $\delta_{CP}$ in the appearance channel, fine-grained time-projection chambers are expected to play an important role. In this Letter, we analyze an influence of realistic detector capabilities on the $\delta_{CP}$ sensitivity for a setup similar to that of the Deep Underground Neutrino Experiment. We find that the effect of the missing energy, carried out by undetected particles, is sizable. Although the reconstructed neutrino energy can be corrected for the missing energy, the accuracy of such procedure has to exceed 20\%, to avoid a sizable bias in the extracted $\delta_{CP}$ value.Comment: 6 pages, 2 figures. v2 matches the version published in PR

Comparison of the calorimetric and kinematic methods of neutrino energy reconstruction in disappearance experiments

To be able to achieve their physics goals, future neutrino-oscillation experiments will need to reconstruct the neutrino energy with very high accuracy. In this work, we analyze how the energy reconstruction may be affected by realistic detection capabilities, such as energy resolutions, efficiencies, and thresholds. This allows us to estimate how well the detector performance needs to be determined a priori in order to avoid a sizable bias in the measurement of the relevant oscillation parameters. We compare the kinematic and calorimetric methods of energy reconstruction in the context of two muon-neutrino disappearance experiments operating in different energy regimes. For the calorimetric reconstruction method, we find that the detector performance has to be estimated with a ~10% accuracy to avoid a significant bias in the extracted oscillation parameters. On the other hand, in the case of kinematic energy reconstruction, we observe that the results exhibit less sensitivity to an overestimation of the detector capabilities.Comment: 16 pages, 14 figures, matches the version published in Phys. Rev.

Gains from Variety: Refugee-Host Interactions in Uganda

Refugees are mainly hosted in low-income countries, where they often remain for a long time. Therefore, it is important to assess how they integrate with the local economy and to what extent their presence can contribute to the transition to a more dynamic economic environment. Proximity between refugees and hosts might improve the welfare of both groups by increasing opportunities for mutually beneficial economic exchanges. In particular, welfare gains might be generated through the availability of a greater variety of commodities. In this paper we propose a theoretical model that uses the love for variety to frame the possible benefits arising from the interaction between hosts and refugees facilitated by geographical proximity. We complement the conceptual framework with an empirical analysis that makes use of a unique dataset covering around 80% of the refugee population living in Ugandan settlements and the adjoining host households. The empirical results show that proximity between groups increases the food expenditure and the variety of food consumption of both groups. We also found that exposition to inter-group interactions rises the non-food expenditure, and the probability to run a farm and a non-farm enterprise by refugee households, while hosts are not crowding out from production

Multi- to Unilamellar Transitions in Catanionic Vesicles

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Gains from Variety: Refugee-Host Interactions in Uganda

Refugees are mainly hosted in low-income countries, where they often remain for a long time. Therefore, it is important to assess how they integrate with the local economy and to what extent their presence can contribute to the transition to a more dynamic economic environment. Proximity between refugees and hosts might improve the welfare of both groups by increasing opportunities for mutually beneficial economic exchanges. In particular, welfare gains might be generated through the availability of a greater variety of commodities. In this paper we propose a theoretical model that uses the love for variety to frame the possible benefits arising from the interaction between hosts and refugees facilitated by geographical proximity. We complement the conceptual framework with an empirical analysis that makes use of a unique dataset covering around 80% of the refugee population living in Ugandan settlements and the adjoining host households. The empirical results show that proximity between groups increases the food expenditure and the variety of food consumption of both groups. We also found that exposition to inter-group interactions rises the non-food expenditure, and the probability to run a farm and a non-farm enterprise by refugee households, while hosts are not crowding out from production