Axion decay a → ff̃ in a strong magnetic field
نویسنده
چکیده
The axion decay into charged fermion-antifermion pair a → f f̃ is studied in external crossed and magnetic fields. The result we have obtained can be of use to re-examine the lower limit on the axion mass in case of possible existence of strong magnetic fields at the early Universe stage. will be published in Phys. Lett. B Peccei-Quinn (PQ) symmetry [1] continues to be the most attractive solution to the problem of CP-conservation in strong interactions. Therefore the axion [2], the pseudo-Goldstone boson associated with PQ-symmetry, is the subject of constant theoretical and experimental investigations (see, for example, [3, 4]). The allowed range for the axion mass, and therefore for the PQ-symmetry breaking scale, fa: ma ≃ 6.3 [ 10GeV fa ]
منابع مشابه
Axion decay a → ff̃ in a strong magnetic field
The axion decay into charged fermion-antifermion pair a → f f̃ is studied in a strong magnetic field (B > Be).The result we have obtained can be of use to reexamine the lower limit on the axion mass in a case of possible existence of strong magnetic fields at the early Universe stage. Peccei-Quinn (PQ) symmetry [1] continues to be the most attractive solution to the problem of CP-conservation in...
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