Dispersion Relations and Finite Size Effects in High-energy Electroweak Interactions
Apr, 199023 pages
Published in:
- Nucl.Phys.B 347 (1990) 371-393
- Published: 1990
Report number:
- LBL-28980,
- UCB-PTH-90-17,
- IFUP-TH-13-90
Citations per year
Abstract: (Elsevier)
Dispersion relations between the forward elastic scattering amplitude and the total inclusive cross section are shown to hold for ( B + L )-violating instanton-induced interactions in the electroweak sector of the Standard Model and in the two-dimensional abelian Higgs model. The result is due to instanton-anti-instanton interactions, which are evaluated in the framework of the dilute instanton approximation. Within that framework finite instanton-size corrections are considered, and it is shown that their effect is not sufficient to suppress multiple gauge vector or Higgs scalar production below the threshold E 0 ≈ M H / α W . These processes may be sensitive to deviations from the dilute gas approximation.- electroweak interaction: high energy behavior
- high energy behavior: electroweak interaction
- baryon number: violation
- lepton number: violation
- fermion fermion: interaction
- interaction: fermion fermion
- elastic scattering: forward scattering
- forward scattering: elastic scattering
- scattering amplitude
- total cross section: inclusive reaction
References(11)
Figures(0)