12 research outputs found
Model of Electro-Weak Interaction
The gauge model for the unified theory of the
electromagnetic and weak interactions which is free from a prior
self-interaction scalar field, is developed. Due to breaking the initial
symmetry the Lagrangian is derived. The obtained
Lagrangian contains the whole of terms
corresponding both to free boson and fermion fields and to interaction between
them, as it takes place in the Standard Model (SM) . We show that all boson
fields, including the Higgs one, directly arise due to breaking the initial
symmetry, and are generated by the initial gauge fields in contrary to the
Standard Model consideration. The Higgs fields are studied in detail. A broad
spectrum of states of the Higgs bosons is found. The masses of the Higgs
particle in such states are calculated
Suppression of soft nuclear bremsstrahlung in proton-nucleus collisions
Photon energy spectra up to the kinematic limit have been measured in 190 MeV
proton reactions with light and heavy nuclei to investigate the influence of
the multiple-scattering process on the photon production. Relative to the
predictions of models based on a quasi-free production mechanism a strong
suppression of bremsstrahlung is observed in the low-energy region of the
photon spectrum. We attribute this effect to the interference of photon
amplitudes due to multiple scattering of nucleons in the nuclear medium.Comment: 12 pages, 3 figures, submitted to Phys. Rev. Let
Proceedings of the 38th International Symposium on Multiparticle Dynamics (ISMD08)
Proceedings of ISMD08Comment: Edited by: J. Bartels, K. Borras, G. Gustafson, H. Jung, K. Kutak, S.
Levonian, and J. Mnic