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Could the next generation of cosmology experiments exclude supergravity?

Abstract : Gravitinos are expected to be produced in any local supersymmetric model. Using their abundance prediction as a function of the reheating energy scale, it is argued that the next generation of Cosmic Microwave Background experiments could exclude supergravity or strongly favor "thermal-like" inflation models if B mode polarized radiation were detected. Galactic cosmic--ray production by evaporating primordial black holes is also investigated as a way of constraining the Hubble mass at the end of inflation. Subsequent limits on the gravitino mass and on the related grand unification parameters are derived.
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Submitted on : Thursday, June 3, 2004 - 4:36:20 PM
Last modification on : Thursday, November 19, 2020 - 12:58:39 PM
Long-term archiving on: : Thursday, April 1, 2010 - 11:11:10 AM

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A. Barrau, N. Ponthieu. Could the next generation of cosmology experiments exclude supergravity?. Physical Review D, American Physical Society, 2004, 69, 105021-(7 p.). ⟨in2p3-00021873⟩

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