Hadronic Instabilities in Very Intense Magnetic Fields

Details Hadronic Instabilities in Very Intense Magnetic Fields Hadronic Instabilities in Very Intense Magnetic Fields

1992-06-04

arxiv.org/abs/hep-ph/9206211v1

Nucl.Phys.Proc.Suppl. 31 (1992) 248-251

Physics

High Energy Physics

High Energy Physics - Phenomenology

Submitted to the 26th International Conference on High Energy Physics (using macropackage REVTEX II), 10 pages

Scientific paper

10.1016/0920-5632(93)90142-S

Composite hadronic states exhibit interesting properties in the presence of very intense magnetic fields, such as those conjectured to exist in the vicinity of certain astrophysical objects. We discuss three scenarios. (i) The presence of vector particles with anomalous magnetic moment couplings to scalar particles, induces an instability of the vacuum. (ii) A delicate interplay between the anomalous magnetic moments of the proton and neutron makes, in magnetic fields $B\ge 2\times 10^{14}$ T, the neutron stable and for fields $B\ge 5\times 10^{14}$ T the proton becomes unstable to a decay into a neutron via $\beta$ emission. (iii) In the unbroken chiral $\sigma$ model magnetic fields would be screened out as in a superconductor. It is the explicit breaking of chiral invariance that restores standard electrodynamics. Astrophysical consequences of all these phenomena are discussed.

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