Accelerator design concept for future neutrino facilities

Apollonio, M.; Berg, Scott; Blondel, A.; Bogacz, Alex; Brooks, Stephen J.; Campagne, J. E.; Caspar, D.; Cavata, C.; Chimenti, P.; Cobb, J.H.; Dracos, M.; Edgecock, R.; Efthymiopoulos, I.; Fabich, A.; Fernow, R.; Filthaut, F.; Gallardo, J.; Garoby, R.; Geer, S.; Gerigk, F.; Hanson, G.; Johnson, R. P.; Johnstone, C.; Kaplan, Daniel M.; Keil, Eberhard; Kirk, H.; Klier, A.; Kurup, A.; Lettry, J.; Long, K.; Machida, S.; McDonald, Kirk T.; Méot, F.; Mori, Y.; Neuffer, D.; Palladino, V.; Palmer, R.B.; Paul, K.; Poklonskiy, Alexey A.; Popovic, M.; Prior, Christopher; Rees, G.H.; Rossi, C.; Rovelli, T.; Sandström, R.; Seviour, Rebecca; Sievers, P.; Simos, N.; Torun, Y.; Vretenar, M.; Yoshimura, K.; Zisman, Michael S.

doi:10.1088/1748-0221/4/07/p07001

Cited by 47 publications

(10 citation statements)

References 41 publications

(86 reference statements)

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“…[23][24][25]. The International Neutrino Factory and Superbeam Scoping Study [25][26][27] has laid the foundations for the currently ongoing design study for the Neutrino Factory (IDS-NF) [28]. This initiative from about 2007 to 2013 is to present a design report, schedule, cost estimate, and risk assessment for the Neutrino Factory.…”

Section: Introductionmentioning

confidence: 99%

Sterile neutrinos beyond LSND at the neutrino factory

2010

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We discuss the effects of one additional sterile neutrino at the Neutrino Factory. Compared to earlier analyses, which have been motivated by Liquid Scintillator Neutrino Detector (LSND) results, we do not impose any constraint on the additional mass squared splitting. This means that the additional mass eigenstate could, with small mixings, be located among the known ones, as it is suggested by the recent analysis of cosmological data. We use a self-consistent framework at the Neutrino Factory without any constraints on the new parameters. We demonstrate for a combined short and long baseline setup that near detectors can provide the expected sensitivity at the LSND-motivated Ám 2 41 -range, while some sensitivity can also be obtained in the region of the atmospheric mass splitting from the long baselines. We point out that limits on such very light sterile neutrinos may also be obtained from a reanalysis of atmospheric and solar neutrino oscillation data, as well as from supernova neutrino observations. In the second part of the analysis, we compare our sensitivity with the existing literature using additional assumptions, such as jÁm 2 41 j ) jÁm 2 31 j, leading to averaging of the fast oscillations in the far detectors. We demonstrate that while the Neutrino Factory has excellent sensitivity compared to existing studies using similar assumptions, one has to be very careful interpreting these results for a combined short and long baseline setup where oscillations could occur in the near detectors. We also test the impact of additional detectors at the short and long baselines, and we do not find a substantial improvement of the sensitivities.

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Section: Introductionmentioning

confidence: 99%

Sterile neutrinos beyond LSND at the neutrino factory

2010

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“…The International Muon Ionization Cooling Experiment (MICE) [1], aims to demonstrate ionization cooling so that it may be exploited in future cooling-channel designs [2,3,4]. The MICE experiment produces pions using a titanium target, dipped into the beam halo of the 800MeV ISIS proton synchrotron [5].…”

Section: Muon Ionization Cooling Experimentsmentioning

confidence: 99%

Recent Results from the Study of Emittance Evolution in MICE

Hunt¹

2019

Proceedings of the 20th International Workshop on Neutrinos — PoS(NuFACT2018)

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The Muon Ionization Cooling Experiment (MICE) has measured the change in emittance due to ionization energy loss. Large aperture solenoid magnets were used to focus muons through Lithium-hydride, liquid hydrogen and empty absorbers. Diagnostic devices were placed upstream and downstream of the absorber, enabling the phase-space coordinates of individual muons to be reconstructed. By observing the properties of ensembles of muons, the evolution of the beam emittance was studied. The phase-space was analysed using single particle amplitude distributions and shows a clear increase in the core density of the beam, a direct effect of ionization cooling.

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“…The international Muon Ionization Cooling Experiment (MICE) has been designed [15] to perform a full demonstration of transverse ionization cooling. Intensity effects are negligible for most of the cooling channels conceived for the neutrino factory or muon collider [16]. This allows the MICE experiment to record muon trajectories one particle at a time.…”

Section: Introductionmentioning

confidence: 99%

First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment

Adams

Adey²,

Asfandiyarov

et al. 2019

Eur. Phys. J. C

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The Muon Ionization Cooling Experiment (MICE) collaboration seeks to demonstrate the feasibility of ionization cooling, the technique by which it is proposed to cool the muon beam at a future neutrino factory or muon collider. The emittance is measured from an ensemble of muons assembled from those that pass through the experiment. A pure muon ensemble is selected using a particleidentification system that can reject efficiently both pions and electrons. The position and momentum of each muon are measured using a high-precision scintillating-fibre tracker in a 4 T solenoidal magnetic field. This paper presents the techniques used to reconstruct the phase-space distributions in the upstream tracking detector and reports the first particleby-particle measurement of the emittance of the MICE Muon Beam as a function of muon-beam momentum.

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Accelerator design concept for future neutrino facilities

Cited by 47 publications

References 41 publications

Sterile neutrinos beyond LSND at the neutrino factory

Sterile neutrinos beyond LSND at the neutrino factory

Recent Results from the Study of Emittance Evolution in MICE

First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment

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