منابع مشابه
Low-energy photon–neutrino inelastic processes beyond the Standard Model
We investigate in this work the leading contributions of the MSSM with Rparity violation and of Left–Right models to the low-energy five-leg photon– neutrino processes. We discuss the results and compare them to the Standard Model ones. Pacs numbers: 13.10.+q, 13.15.+g, 14.70.Bh, 13.88.+e, 95.30.Cq. CERN-TH/98-340 December 1998 Typeset using REVTEX e-mail: [email protected], [email protected]...
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New constraints on resonance saturation in chiral perturbation theory are investigated. These constraints arise because each consistent saturation scheme must map to a representation of the full QCD chiral symmetry group. The low-energy constants of chiral perturbation theory are then related by a set of mixing angles. It is shown that vector meson dominance is a consequence of the fact that na...
متن کاملLow–Energy Theorems in Higgs Physics
We present low–energy theorems for the calculation of loop amplitudes with external scalar or pseudoscalar Higgs bosons which are light compared to the loop particles. Starting from existing lowest–order versions of these theorems, we show how their applicability may be extended to the two–loop level. To illustrate the usefulness of these theorems, we discuss a number of applications to Higgs p...
متن کاملEffective Lagrangians and low energy photon-photon scattering
We use the behavior of the photon-photon scattering for photon energies ω less than the electron mass, me, to examine the implications of treating the Euler-Heisenberg Lagrangian as an effective field theory. Specifically, we determine the ω/me behavior of the scattering amplitude predicted by including one-loop corrections to the Euler-Heisenberg effective Lagrangian together with the countert...
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We generalize the low-energy theorems of gluodynamics to finite temperature. Examples of the theorems in the low and high temperature limits are given.
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ژورنال
عنوان ژورنال: Physical Review
سال: 1968
ISSN: 0031-899X
DOI: 10.1103/physrev.166.1783