Electromagnetic modulation of monochromatic neutrino beams

Barabanov, A. L.; Titov, O.

doi:10.1140/epja/i2015-15096-9

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…The high-resolution measurements of the spectrum of low energy outgoing electrons need the detectors with the ultra low threshold and background. The interesting concepts of various (monochromatic) ν e sources are also worth noticing [94][95][96][97][98][99]. A preliminary study on the feasibility of electron polarized scintillating GSO target has been carried out by [34].…”

Section: Discussionmentioning

confidence: 99%

Neutrino elastic scattering on polarized electrons as a tool for probing the neutrino nature

Błaut

Sobków

2020

Eur. Phys. J. C

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Possibility of using the polarized electron target (PET) for testing the neutrino nature is considered. One assumes that the incoming electron neutrino (ν e ) beam is the superposition of left chiral states with right chiral ones. Consequently the non-vanishing transversal components of ν e spin polarization may appear, both T-even and T-odd. ν e s are produced by the low energy monochromatic (un)polarized emitter located at a near distance from the hypothetical detector which is able to measure both the azimuthal angle and polar angle of the recoil electrons, and/or also the energy of the outgoing electrons with a high resolution. A detection process is the elastic scattering of ν e s (Dirac or Majorana) on the polarized electrons. Left chiral (LC) ν e s interact mainly by the standard V − A interaction, while right chiral (RC) ones participate only in the non-standard V + A, scalar S R , pseudoscalar P R and tensor T R interactions. We show that a distinction between the Dirac and Majorana ν e s is possible both for the purely left chiral states and the left-right superposition. In the first case a departure from the standard prediction of the azimuthal asymmetry of recoil electrons is caused by the interferences between the non-standard complex S and T couplings, proportional to the angular correlations (T-even and T-odd) among the polarization of the electron target, the incoming neutrino momentum and the outgoing electron momentum. Such a deviation would indicate the Dirac nature of ν e s. In the second variant the azimuthal asymmetry, polar distribution and energy spectrum of scattered electrons are sensitive to the interference terms between the standard and exotic interactions, proportional to the various angular correlations (T-even and T-odd) among the transversal ν e spin polarization (related to the ν e source), the electron target polarization, the incoming ν e momentum and the outgoing electron momentum. The basic difference a between the Dirac and Majorana ν e s arises from the absence of T and V interactions in the Majorana scenario. Moreover, in the Majorana case the above observables contain the non-vanishing interference between V − A and V + A interactions, proportional to the T-even longitudinal ν e polarization. Our model-independent study is carried out for the flavor ν e eigenstates in the relativistic ν e limit.

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Section: Discussionmentioning

confidence: 99%

Neutrino elastic scattering on polarized electrons as a tool for probing the neutrino nature

Błaut

Sobków

2020

Eur. Phys. J. C

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“…A list of isotopes with non-zero spins decaying only (I nEC = 1) or mainly (I nEC ≥ 0.98) by EC via allowed transition to a single final nuclear state is not too wide. Recently we composed such a list for Gamow-Teller transitions in the context of the problem of modulated neutrino beams formation [6] (see also [7]). Here we present an extended list of suitable isotopes that decay via Gamow-Teller transition into the ground or excited states of daughter nuclei; see Tables I and II.…”

Section: Suitable Isotopesmentioning

confidence: 99%

“…Proposals [1,2] for the EC based neutrino sources appeared as a part of a more general concept to use β-decaying nuclei (or ions with such nuclei) accelerated and accumulated in a storage ring to produce intense collimated neutrino beams (β beams) [3] (for more details on β beam projects, see [4,5]). With neutron-deficient nuclei decaying via β + or EC, one can form modulated completely or partially monochromatic neutrino beams (β and EC beams); such beams could be useful for neutrino oscillation experiments, as well as for other investigations in physics of the weak interaction (see [6,7] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Neutrino recoil force in electron-capture decay of polarized nuclei: Measurement prospects and potential applications

Barabanov

Titov

2019

Phys. Rev. C

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Due to a directional asymmetry of neutrino emission caused by parity violation, a sample of radioactive atoms experiences a small recoil force from neutrino radiation accompanying electron capture by polarized nuclei. An expression for this force is obtained for the case of allowed nuclear transitions. Prospects to measure this force by the use of modern micromechanical devices are considered. Numerical estimates for the force are presented for a number of most suitable radioactive isotopes. Potential applications for the weak interaction studies are discussed including the possibility to search for hypothetical Lorentz invariance violation.

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“…Solving these equations we see that the speed 2 v of the bare nucleus before the absorption of a neutrino is given by the right hand side of Equation (8).…”

Section: Detection Of Neutrinos Using Bsibdmentioning

confidence: 99%

“…The directed neutrino beam can be switched and modulated by manipulation of the magnitude and direction of the magnetic field. It was also shown that electron capture beta-decay in hydrogen-like ions is extremely sensitive to the hyperfine interaction [4] [5] [6] [7] [8]. In fact, the decay from one of the hyperfine states can be completely forbidden.…”

Section: Introductionmentioning

confidence: 99%

Generation and Detection of a Directed Monoenergetic Neutrino Beam with Hydrogen-Like Ions

Folan¹,

Tsifrinovich²

2017

WJNST

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We consider two possible schemes for generation and detection of a monoenergetic directed beam of neutrinos which may have application to neutrino communication. First, we consider generation of a directed neutrino beam using electron capture beta decay in hydrogen-like ions. Next, we suggest detection of a directed neutrino beam using resonant absorption of a neutrino by a bare nucleus with the generation of a bound electron. This reaction is inverse to electron capture beta decay, and we call it "Bound State Inverse Beta Decay (BSIBD)". We show that the recoil effect can be eliminated by an appropriate choice of velocities for the ions and bare nuclei. Finally, we consider a combination of a solid state source of a directed mono-energetic neutrino beam and its detection using BSIBD.

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Electromagnetic modulation of monochromatic neutrino beams

Cited by 7 publications

References 25 publications

Neutrino elastic scattering on polarized electrons as a tool for probing the neutrino nature

Neutrino elastic scattering on polarized electrons as a tool for probing the neutrino nature

Neutrino recoil force in electron-capture decay of polarized nuclei: Measurement prospects and potential applications

Generation and Detection of a Directed Monoenergetic Neutrino Beam with Hydrogen-Like Ions

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