We show that the decay spectrum of massive excitations in perturbative string theories is thermal when averaged over the (many) initial degenerate states. We first compute the inclusive photon spectrum for open strings at the tree level showing that a black body spectrum with the Hagedorn temperature emerges in the averaging.

Fundamental strings as black bodies / Amati, Daniele; Russo, J.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 454:3-4(1999), pp. 207-212. [10.1016/S0370-2693(99)00375-5]

Fundamental strings as black bodies

Amati, Daniele;
1999-01-01

Abstract

We show that the decay spectrum of massive excitations in perturbative string theories is thermal when averaged over the (many) initial degenerate states. We first compute the inclusive photon spectrum for open strings at the tree level showing that a black body spectrum with the Hagedorn temperature emerges in the averaging.
1999
454
3-4
207
212
Amati, Daniele; Russo, J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/30255
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