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Unparticle as a field with continuously distributed mass

Jul, 2007
4 pages
Published in:
  • Int.J.Mod.Phys.A 22 (2007) 5117-5120
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Abstract: (arXiv)
We point out that the notion of an unparticle, recently introduced by Georgi, can be interpreted as a particular case of a field with continuously distributed mass considered in ref.\cite{11}. We also point out that the simplest renormalizable extension of the SUc(3)⊗SUL(2)⊗U(1)SU_c(3)\otimes SU_L(2)\otimes U(1) Standard Model is the extension with the replacement of the U(1) gauge propagator 1k2→1k2+∫0∞ρ(t)−t+k2+iϵdt\frac{1}{k^2} \to \frac{1}{k^2} + \int _0^{\infty}\frac{\rho(t)}{-t+k^2 +i\epsilon}dt with ∫0∞ρ(t)dt<∞\int_0^{\infty}\rho(t)dt < \infty .
  • Physics beyond Standard Model
  • exotica
  • field theory with continuously distributed mass
  • unparticle
  • mass
  • gauge field theory: SU(3) x SU(2) x U(1)
  • propagator: spectral representation