Status and Prospects for Hadron Production Experiments

Schroeter, R.

doi:10.1063/1.3399285

Cited by 1 publication

(1 citation statement)

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“…The uncertainties quoted above are largely canceled for the muon neutrino-antineutrino flavor ratio as well as for the up-down ratio, the former expected to be of order 1% above 1 GeV [119]. Accelerator data from the HARP, MIPP and NA61 experiments on particle multi-production are also expected to improve the predictions of the absolute atmospheric neutrino fluxes [120]. However, as we will see when discussing the effects of correlated systematic uncertainties in the analysis, the uncertainties related to the normalization of the atmospheric fluxes are alleviated when higher energy bins, as well as different angular bins, in which oscillation effects are negligible, are also used.…”

Section: Atmospheric Neutrino Fluxmentioning

confidence: 98%

Exploring the Earth matter effect with atmospheric neutrinos in ice

Agarwalla¹,

Li²,

Mena³

et al. 2012

Preprint

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We study the possibility to perform neutrino oscillation tomography and to determine the neutrino mass hierarchy in kilometer-scale ice Čerenkov detectors by means of the θ 13 -driven matter effects which occur during the propagation of atmospheric neutrinos deep through the Earth. We consider the ongoing IceCube/DeepCore neutrino observatory and future planned extensions, such as the PINGU detector, which has a lower energy threshold. Our simulations include the impact of marginalization over the neutrino oscillation parameters and a fully correlated systematic uncertainty on the total number of events. For the current best-fit value of the mixing angle θ 13 , the DeepCore detector, due to its relatively high-energy threshold, could only be sensitive to fluctuations on the normalization of the Earth's density of ∆ρ ±10% at ∼ 1.6σ CL after 10 years in the case of a true normal hierarchy. For the two PINGU configurations we consider, overall density fluctuations of ∆ρ ±3% (±2%) could be measured at the 2σ CL after 10 years, also in the case of a normal mass hierarchy. We also compare the prospects to determine the neutrino mass hierarchy in these three configurations and find that this could be achieved at the 5σ CL, for both hierarchies, after 5 years in DeepCore and about 1 year in PINGU. This clearly shows the importance of lowering the energy threshold below 10 GeV so that detectors are fully sensitive to the resonant matter effects.

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Section: Atmospheric Neutrino Fluxmentioning

confidence: 98%