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    TH Thursday Seminar

    CMB evidence for symmetry-breaking during inflation?

    by S. SARKAR (Oxford University)

    → Europe/Zurich
    TH Auditorium (CERN)

    TH Auditorium

    CERN
    Description
    The spectrum of primordial density perturbations may depart from scale-invariance because of symmetry-breaking phase transitions along supersymmetric flat directions during inflation. A possible such feature was identified in the data on galaxy clustering, leading to the prediction that secondary acoustic peaks in the CMB angular power spectrum should be suppressed. The recent Boomerang and Maxima results confirm this and moreover indicate a best-fit cosmology with zero cosmological constant.