期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
卷 22, 期 28, 页码 5117-5120出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X07037342
关键词
physics beyond Standard Model; exotica; field theory with continuously distributed mass
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 Phys. Lett. B 325, 430 (1994). We also point out that the simplest renormalizable extension of the SUc(3) circle times SUL(2) circle times U(1) Standard Model is the extension with the replacement of the U(1) gauge propagator 1/k(2) -> 1/k(2) + integral(infinity)(0) rho(t)/-t+k(2)+i epsilon dt with integral(infinity)(0) rho(t)dt < infinity.
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