Psychologists, robotics and new technology

Friedland, Lilli

doi:10.1037/e542102009-007

Cited by 3 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We then study the actual case of non-zero mixing angle and the effects of level crossing phenomena on neutrino transition probabilities. In the previous work along these lines by various authors [33][34][35][36][37][38] several bounds have been obtained for both Dirac and Majorana spin-flavor transitions for different magnetic field configurations.…”

Section: Introductionmentioning

confidence: 93%

“…The magnetic field in different regions of the Sun shows different characteristic behaviour [37]. In the solar convective zone (CZ) the magnetic fields are believed to be generated from a dynamo mechanism active at its base.…”

Section: Neutrino Spin Precession In Solar Magnetic Fieldsmentioning

confidence: 99%

“…Thus merely fulfilling the SFP resonant condition ( 9) is not sufficient to drive large transitions due to magnetic field. In this case it more appropriate to go to mass eigenbasis where such large vacuum mixing terms are absent [37]. The Hamiltonian in the mass eigenbasis can be obtained by performing the rotation on the flavor eigenstates…”

Section: An Analytical Model For Zero Vacuum Mixingmentioning

confidence: 99%

“…( 8) and ( 9) is not sufficient for resonant conversion and these conditions are valid only for small mixing angle. A general condition for resonant conversion can also be derived which holds for both small and large mixing angles [37]. An examination of the neutrino transitions as it propagates in the Sun give further details about the neutrino evolution in this general case.…”

Section: An Analytical Model For Zero Vacuum Mixingmentioning

confidence: 99%

See 3 more Smart Citations

Neutrino spin-flavor oscillations in solar environment

Joshi,

Jain

2019

Preprint

View full text Add to dashboard Cite

We study the phenomena of neutrino spin-flavor oscillations due to solar magnetic fields. This allows us to examine how significantly the electron neutrinos produced in the solar interior undergo a resonant spin-flavor conversion. We construct analytical models for solar magnetic field in all the three regions of the Sun. Neutrino spin-flavor oscillations in these magnetic field is examined by studying the level crossing phenomena and comparing the two cases of zero and non-zero vacuum mixing respectively. It is shown that including the effect of non-zero vacuum mixing angle leads to suppression of neutrino-antineutrino transition. Related phenomena such as effects of matter on neutrino spin transitions and differences between Dirac and Majorana transitions in the solar magnetic fields are also discussed.

show abstract

Section: Introductionmentioning

confidence: 93%

Section: Neutrino Spin Precession In Solar Magnetic Fieldsmentioning

confidence: 99%

Section: An Analytical Model For Zero Vacuum Mixingmentioning

confidence: 99%

Section: An Analytical Model For Zero Vacuum Mixingmentioning

confidence: 99%

See 2 more Smart Citations

Neutrino spin-flavor oscillations in solar environment

Joshi,

Jain

2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Furthermore, the solar magnetic field in the convective zone should be smaller than 100-300 kG [36]. Latest analysis suggests a lower value [18,[37][38][39] hence we consider a conservative maximum value of the magnetic field in the convective zone of 10 kG. Taking advantage of the linearity of the magneto-hydrodynamic equations, any linear combination of B K is also a solution, hence the solar magnetic field is computed as…”

Section: Change Of the Neutrino Helicity In The Sunmentioning

confidence: 99%

Distinguishing Dirac and Majorana neutrinos with astrophysical fluxes

Barranco

Delépine

Napsuciale

et al. 2020

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

Massive neutrinos can have helicity s −1. Neutrino helicity changes when the neutrino interacts with an external magnetic field and it is possible that the left-handed neutrinos born inside the Sun or a supernova could leave their sources with a different helicity. Since Dirac and Majorana neutrinos have different cross sections in the scattering on electrons for different neutrino helicities, a change in the final neutrino helicity may generate a different number of events and spectra in terrestrial detectors when astrophysical neutrinos have travelled regions with strong magnetic fields. In this work, we show that looking for these effects in solar neutrinos, it could be possible to set bounds in the neutrino properties such as the neutrino magnetic moment. Furthermore, for neutrinos coming from a supernova, we show that even in the case of an extremely small neutrino magnetic moment, µ ν ∼ 10 −19 µ B , there will be measurable differences in both the number of events and in the spectra of Majorana and Dirac neutrinos.

show abstract

Neutrino spin-flavor oscillations in solar environment

Joshi

Jain

2020

Res. Astron. Astrophys.

View full text Add to dashboard Cite

We study the phenomenon of neutrino spin-flavor oscillations due to solar magnetic fields. This allows us to examine how significantly the electron neutrinos produced in the solar interior undergo a resonant spin-flavor conversion. We construct analytical models for the solar magnetic field in all the three regions of the Sun. Neutrino spin-flavor oscillations in this magnetic field are examined by studying the level crossing phenomenon and comparing the two cases of zero and non-zero vacuum mixing respectively. Results from the Borexino experiment are used to place an upper limit on the magnetic field in the solar core. Related phenomena such as effects of matter on neutrino spin transitions and differences between Dirac and Majorana transitions in the solar magnetic fields are also discussed.

show abstract

Psychologists, robotics and new technology

Cited by 3 publications

References 0 publications

Neutrino spin-flavor oscillations in solar environment

Neutrino spin-flavor oscillations in solar environment

Distinguishing Dirac and Majorana neutrinos with astrophysical fluxes

Neutrino spin-flavor oscillations in solar environment

Contact Info

Product

Resources

About