Graviton production from D-string recombination and annihilation

Article Article scientifique Article Graviton production from D-string recombination and annihilation eng 2006 author Cornou Jean Louis Ecole Normale Superieure author Pajer Enrico Munich U. 626257 author Sturani Riccardo Geneva U. 586764 16-37 10.1016/j.nuclphysb.2006.08.018 0550-3213 hep-th/0606275 Fundamental superstrings (F-strings) and D-strings may be produced at high temperature in the early Universe. Assuming that, we investigate if any of the instabilities present in systems of strings and branes can give rise to a phenomenologically interesting production of gravitons. We focus on D-strings and find that D-string recombination is a far too weak process for both astrophysical and cosmological sources. On the other hand if D-strings annihilate they mostly produce massive closed string remnants and a characteristic spectrum of gravitational modes is produced by the remnant decay, which may be phenomenologically interesting in the case these gravitational modes are massive and stable. 11.25.-w 11.25.Wx 98.80.Cq String model Supersymmetry Cosmological constant D-string: recombination Tachyon Graviton: production Gravitational radiation String: annihilation Dewey 500.2 27 Section de physique 13 false Nuclear physics. B 756 1-2 d2c1561b-5cf9-4933-a812-3c02b7f912a1 Article (Published version) Public Cornou_NPB_200675616.pdf 261555 application/pdf CC BY 44264dbba3b8b4e978dcbd1a0a25f5c9682f8352f215ef0c1f5f5aaf21f6fe3e openAccess Faculté des sciences / Section de physique

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Graviton production from D-string recombination and annihilation	Nuclear physics. B			2006	80	106

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Pajer, Enrico