TY - JOUR
T1 - Dispersion relations and finite-size effects in high-energy electroweak interactions
AU - Porrati, Massimo
N1 - Funding Information:
* This work was supported in part by the Director, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the US Department of Energy under Contract DE-ACO3-76SF00098 and in part by the National Science Foundation under Research Grant PHY85-15857. * In all papers on the subject it is assumed that the Higgs and the W-masses be of the same order of magnitude, in order to avoid the complication of dealing with two scales.
PY - 1990/12/24
Y1 - 1990/12/24
N2 - 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 E0 ≈ MH/αW. These processes may be sensitive to deviations from the dilute gas approximation.
AB - 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 E0 ≈ MH/αW. These processes may be sensitive to deviations from the dilute gas approximation.
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U2 - 10.1016/0550-3213(90)90564-T
DO - 10.1016/0550-3213(90)90564-T
M3 - Article
AN - SCOPUS:0000610150
SN - 0550-3213
VL - 347
SP - 371
EP - 393
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1-2
ER -