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.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
