Neutrinos under Strong Magnetic Fields (English)

In: AIP Conference Proceedings   ;  689 ,  1  ;  63-73  ;  2003

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In this talk we review the results on neutrino propagation under external magnetic fields. We concentrate on the effects of strong magnetic fields M W 2  ≫ B ≫ m e 2 in neutral media. It is shown that the neutrino energy density get a magnetic contribution in the strong‐field, one‐loop approximation, which is linear in the Fermi coupling constant as in the charged medium. It is analyzed how this correction produces a significant oscillation resonance between electron‐neutrinos and the other two active flavors, as well as with sterile neutrinos. The found resonant level‐crossing condition is highly anisotropic. Possible cosmological applications are discussed. Effects due to primordial hypermagnetic fields on neutrinos propagating in the symmetric phase of the electroweak model are also presented. At sufficiently strong hypermagnetic fields, B ⩾ T2, the neutrino energy is found to be similar to that of a massless charged particle with one‐degree of freedom.

Table of contents – Volume 689, Issue 1

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The Radio Ice Cherenkov Experiment
Adams, J. / Baird, A. / Bean, A. / Besson, D. / Byleen‐Higley, K. / Chambers, S. / Drees, J. / Graham, S. / Harris, P. / Kravchenko, I. et al. | 2003
Sudbury Neutrino Observatory
Klein, Joshua R. | 2003
The Status of the Booster Neutrino Experiment at Fermilab (MiniBooNE)
Mills, Geoffrey B. | 2003
K2K Experiment
Nakaya, T. | 2003
Neutrino Physics Without Oscillations
Thomas, Anthony W. | 2003
Neutrinos under Strong Magnetic Fields
Ferrer, Efrain J. / de la Incera, Vivian | 2003
Some Remarks on Neutrino Oscillation and Masses
Zee, A. | 2003
Semileptonic and Rare B Decays at B Factories
Emery, Sandrine | 2003
Search for New States of Matter with the STAR Experiment at RHIC
Lange, Jens Sören | 2003
QCD Factorization in B Decays into ρπ
Guo, X.‐H. / Leitner, O. M. A. / Thomas, A. W. | 2003
CP Violation, Dark Matter and Extra Dimensions in the D‐Zero Experiment at the Tevatron
Ratoff, Peter Neil | 2003
B Physics (Theory)
Rosner, Jonathan L. | 2003
Dark Matter Detection
Caldwell, David O. | 2003
Coherent Phase Argument for Inflation
Dodelson, Scott | 2003
Dark Energy Present and Future
Frampton, Paul H. | 2003