Dispersion relations and finite-size effects in high-energy electroweak interactions

Massimo Porrati

    Research output: Contribution to journalArticlepeer-review

    Abstract

    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 ≈ MHW. These processes may be sensitive to deviations from the dilute gas approximation.

    Original languageEnglish (US)
    Pages (from-to)371-393
    Number of pages23
    JournalNuclear Physics, Section B
    Volume347
    Issue number1-2
    DOIs
    StatePublished - Dec 24 1990

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Fingerprint Dive into the research topics of 'Dispersion relations and finite-size effects in high-energy electroweak interactions'. Together they form a unique fingerprint.

    Cite this