Neutrino oscillation physics with a higher-γ β-beam

Burguet–Castell, J.; Casper, D.; Gómez-Cadenas, J.J.; Hernández, P.; Sanchez, F. J. Munoz

doi:10.1016/j.nuclphysb.2004.06.021

Cited by 129 publications

(293 citation statements)

References 26 publications

Supporting

Mentioning

289

Contrasting

Order By: Relevance

“…The detector characteristics when exposed to the SPL beam were studied in detail in Ref. [46], where an almost constant ǫ e = 70 % efficiency to identify electrons was found. Reasonably enough, due to the low energy of the neutrino flux, no binning was considered (being the neutrino energy comparable with the Fermi motion).…”

Section: The Splmentioning

confidence: 99%

disappearance at the SPL, T2K-I, NOνA and the neutrino factory

et al. 2006

View full text Add to dashboard Cite

We study the measurement of the atmospheric neutrino oscillation parameters, θ 23 and ∆m 2 23 , at the ν µ disappearance channel at three conventional beam facilities, the SPL, T2K-phase I and NOνA. These two parameters have been shown to be of crucial importance in the measurement of two of the unknowns of the PMNS mixing matrix, θ 13 and the leptonic CP-violating phase δ. In our analyis, the effect of the two discrete ambiguities, sign(∆m 2 23 ) and sign(tan 2θ 23 ), is explicitly taken into account. We analyse also the ν µ disappearance channel at the Neutrino Factory, and combine it with the "golden" ν e → ν µ and "silver" ν e → ν τ appearance channels to study its impact on the measurement of θ 13 and δ. Eventually, we present the sensitivity of the four facilities to different observables: θ 13 , δ, maximal θ 23 , the sign of the atmospheric mass difference, s atm , and the θ 23 -octant, s oct .

show abstract

Section: The Splmentioning

confidence: 99%

disappearance at the SPL, T2K-I, NOνA and the neutrino factory

et al. 2006

View full text Add to dashboard Cite

show abstract

“…In the case that only the main channel is available (IB or ν e CC) a degeneracy in θ 13 and the hierarchy occurs and θ 13 cannot be determined (unless the hierarchy has already been established by another experiment). If sin 2 θ 13 turns out to be in the region where P H ≃ 1, then there is no possibility that it can be determined by any of the laboratory experiments currently proposed [53,54,55,56]. In this case SN information will be extremely valuable.…”

Section: Resultsmentioning

confidence: 99%

Determining neutrino and supernova parameters with a galactic supernova

Skadhauge

Funchal

2007

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

We investigate the sensitivity of some of the proposed next-generation neutrino experiments to a galactic supernova. In particular, we study how well the supernova parameters (the average energies and luminosities) can be separated from the unknown neutrino oscillation parameters (θ 13 and the neutrino mass hierarchy). Three types of experiments, all in the megaton class, are compared. These are: a 540 kton water-Cherenkov detector, a 100 kton liquid Argon detector and a 50 kton scintillator detector. We demonstrate that practically all of these proposed detectors have the possibility to determine the hierarchy of the neutrino masses if the angle of θ 13 is sufficiently large (sin 2 (θ 13 ) > ∼ 10 −4 ) and the hierarchy of the average energies is larger than about 20%. They can at the same time determine some of the supernova parameters well. The average energy of the ν µ and ν τ species can be determined within 5% uncertainty in most of the parameter space suggested by supernova simulations. The detection of several separable channels measuring different combinations of charged current and neutral current processes is crucial for determining the value of θ 13 and the hierarchy. However, there are cases where a few of the SN parameters can be determined rather well even if only the main charged current detection channel is available.

show abstract

“…In the phenomenological literature it has been pointed out that large Lorenz boosts, around 350, possibly combining data from all four ion species, can lead to physics sensitivities which are on par with that of the Neutrino Factory [148][149][150][151][152][153][154][155][156]. However, there are currently no attempts to perform a feasibility study of any of these so called "high-γ" beta-beams.…”

Section: Beta-beamsmentioning

confidence: 99%

“…The 3σ θ 13 discovery potential, CP discovery potential and sensitivity to the mass hierarchy as a function of sin 2 2θ 13 in terms of the CP fraction are shown, for the low-energy Neutrino Factory with a 20 kton TASD (red line), the low-energy Neutrino Factory with a 100 kton LAr detector (blue band -the left-hand edge corresponds to the optimistic assumptions and the right-hand edge to the conservative assumptions), and other experiments -the ISS baseline Neutrino Factory [118] (black line), various β-beams (green [338], orange [339,340], blue [341] lines), T2HK [118] (yellow line) and the wide-band beam [342] (purple line). In these simulations we used the same oscillation parameters as in reference [343], and have assumed a normal hierarchy.…”

Section: Performancementioning

confidence: 99%