Near detector at a neutrino factory

Ellis, M.; Soler, F. J. P.

doi:10.1016/j.nima.2006.09.060

Cited by 4 publications

(9 citation statements)

References 27 publications

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“…What is the value of the time t in these probabilities given in Eqs. (55) and ( 56)? The linear time dependence, a consequence of total energy conservation, also emerges in many other analyses with wave packets 24,36,37,38,39,40,41,42,43,44,45,46,47,48,50,51,52,54,61,62 , from which the S-matrix evaluation of the transition probabilities always yields a result proportional to T /L 2 where T is the "total reaction time" arising from squaring the delta function associated with overall energy conservation and L is the baseline.…”

Section: Which Time Scale?mentioning

confidence: 99%

“…The second line in (55) arises from |H(Ω; t)| 2 . This term is a direct result of calculating the probability at finite time before taking the t → ∞ limit.…”

Section: The Integrals Over the Finite Time Intervalsmentioning

confidence: 99%

“…On one hand, taking the t → ∞ limit first results in the vanishing of H by the averaging of the oscillatory terms (Riemann-Lebesgue lemma). On the other hand, obtaining the probability first and taking the long time limit afterward yields the contribution from the modulus squared of each oscillatory term, leading to the second line in (55).…”

Section: The Integrals Over the Finite Time Intervalsmentioning

confidence: 99%

“…The recognition that exact energy and momentum conservation prevent oscillations between neutrinos of different masses 22,23 has led to the consideration of oscillation experiments in terms of wave-packets 22,23,24,25 including the quantum mechanical aspects of production and detection which have been incorporated in the quantum field theoretical framework 34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,33 . Previous quantum field theory treatments of mixing and oscillations are S-matrix theoretic in nature, making use of in-out wave-packets spatially localized at the source, or the "near" detector a , and the far detector 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,54,33 . However, in all of these treatments the S-matrix calculation takes the interaction time to infinity, even when a We are using the term "near" detector to describe measurement apparatus at or nearby the production site, which is used to detect the charged lepton that is produced with the primary neutrino. This is not to be confused with the term near detector that is widely used in the experimental literatures (see for example 55 ). The latter is used to detect neutrino at a short baseline.…”

Section: Introductionmentioning

confidence: 99%

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Neutrino Oscillations, Entanglement and Coherence: A Quantum Field Theory Study in Real Time

Hutasoit

Boyanovsky

et al. 2011

Int. J. Mod. Phys. A

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The dynamics of neutrino mixing and oscillations are studied directly in finite real time in a model that effectively describes charged current weak interactions. Finite time corrections to the S-matrix result for the appearance and disappearance probabilities are obtained. It is observed that these effects may be of the same order of the S-matrix result in long-baseline appearance experiments. We argue that fundamentally, the S-matrix is ill-suited to describe long-baseline events due to the fact that the neutrino is produced in an entangled state with the charged lepton, which can be disentangled by the measurement of the charged lepton near the production site. The appearance and disappearance far-detection process is described from the time evolution of this disentangled "collapsed" state, allowing us to establish the conditions under which factorization of detection rates emerges in long-baseline experiments. We also study the time evolution of the reduced density matrix and show explicitly how oscillations are manifest in the off-diagonal terms, i.e., coherences, as a result of a finite time analysis. Lastly, we study a model for the "GSI anomaly" obtaining the time evolution of the population of parent and daughter particles directly in real time. We confirm that the decay rate of parent and growth rate December 3, 2018 12:39 WSPC/INSTRUCTION FILE nuoscillation-IJMPA-revised of daughters do not feature oscillatory behavior from interference of mass eigenstates.

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Section: Which Time Scale?mentioning

confidence: 99%

“…The second line in (55) arises from |H(Ω; t)| 2 . This term is a direct result of calculating the probability at finite time before taking the t → ∞ limit.…”

Section: The Integrals Over the Finite Time Intervalsmentioning

confidence: 99%

Section: The Integrals Over the Finite Time Intervalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Neutrino Oscillations, Entanglement and Coherence: A Quantum Field Theory Study in Real Time

Hutasoit

Boyanovsky

et al. 2011

Int. J. Mod. Phys. A

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“…The main aim of this detector was to test the capabilities of silicon detectors for short-baseline neutrino oscillation searches [438,439]. However, this set-up can mimic a possible design for a near detector at a Neutrino Factory [440]. It was used to measure the impact parameter and double-vertex resolution to determine the charm-detection efficiency.…”

Section: Silicon Vertex Detectormentioning

confidence: 99%

Interim Design Report

Abrams¹,

Agarwalla²,

Alekou³

et al. 2011

Self Cite

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International Scoping Study (ISS) for a future neutrino factory and Super-Beam facility. Detectors and flux instrumentation for future neutrino facilities

Abe¹,

Aihara²,

Andreopoulos³

et al. 2009

J. Inst.

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This report summarises the conclusions from the detector group of the International Scoping Study of a future Neutrino Factory and Super-Beam neutrino facility. The baseline detector options for each possible neutrino beam are defined as follows:1. A very massive (Megaton) water Cherenkov detector is the baseline option for a sub-GeV Beta Beam and Super Beam facility.2. There are a number of possibilities for either a Beta Beam or Super Beam (SB) medium energy facility between 1-5 GeV. These include a totally active scintillating detector (TASD), a liquid argon TPC or a water Cherenkov detector.3. A 100 kton magnetized iron neutrino detector (MIND) is the baseline to detect the wrong sign muon final states (golden channel) at a high energy (20-50 GeV) neutrino factory from muon decay. A 10 kton hybrid neutrino magnetic emulsion cloud chamber detector for wrong sign tau detection (silver channel) is a possible complement to MIND, if one needs to resolve degeneracies that appear in the δ -θ 13 parameter space.KEYWORDS: Large detector systems for particle and astroparticle physics; Beam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors)ARXIV EPRINT: 0712.4129

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Near detector at a neutrino factory

Cited by 4 publications

References 27 publications

Neutrino Oscillations, Entanglement and Coherence: A Quantum Field Theory Study in Real Time

Neutrino Oscillations, Entanglement and Coherence: A Quantum Field Theory Study in Real Time

Interim Design Report

International Scoping Study (ISS) for a future neutrino factory and Super-Beam facility. Detectors and flux instrumentation for future neutrino facilities

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