Evaporating global charges in braneworld

Gia Dvali, Gregory Gabadadze

    Research output: Contribution to journalArticlepeer-review


    In braneworld models the global charges, such as baryon or lepton number, are not conserved. The global-charge non-conservation is a rather model-independent feature which arises due to quantum fluctuations of the brane worldvolume. These fluctuations create "baby branes" that can capture some global charges and carry them away into the bulk of higher-dimensional space. Such processes are exponentially suppressed at low-energies, but can be significant at high enough temperatures or energies. These effects can lead to a new, intrinsically high-dimensional mechanism of baryogenesis. Baryon asymmetry might be produced due either to evaporation into the baby branes, or creation of the baryon number excess in collisions of two Brane Universes.

    Original languageEnglish (US)
    Pages (from-to)2419-2433
    Number of pages15
    JournalActa Physica Polonica B
    Issue number9
    StatePublished - Sep 2002

    ASJC Scopus subject areas

    • General Physics and Astronomy


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