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Amati, D.; Russo, J.G. "Fundamental strings as black bodies" (1999) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 454(3-4):207-212
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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. A similar calculation for a massive closed string state with winding and Kaluza-Klein charges shows that the emitted graviton spectrum is thermal with a "grey-body" factor, which approaches one near extremality. These results uncover a simple physical meaning of the Hagedorn temperature and provide an explicit microscopic derivation of the black body spectrum from a unitary S matrix. © 1999 Elsevier Science B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Fundamental strings as black bodies
Autor:Amati, D.; Russo, J.G.
Filiación:Intl. School for Advanced Studies, I-34013 Trieste, Italy
INFN, Sezione di Trieste, Italy
Departamento de Física, Universidad de Buenos Aires, Pabellon I, 1428 Buenos Aires, Brazil
Año:1999
Volumen:454
Número:3-4
Página de inicio:207
Página de fin:212
DOI: http://dx.doi.org/10.1016/S0370-2693(99)00375-5
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v454_n3-4_p207_Amati

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Citas:

---------- APA ----------
Amati, D. & Russo, J.G. (1999) . Fundamental strings as black bodies. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 454(3-4), 207-212.
http://dx.doi.org/10.1016/S0370-2693(99)00375-5
---------- CHICAGO ----------
Amati, D., Russo, J.G. "Fundamental strings as black bodies" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 454, no. 3-4 (1999) : 207-212.
http://dx.doi.org/10.1016/S0370-2693(99)00375-5
---------- MLA ----------
Amati, D., Russo, J.G. "Fundamental strings as black bodies" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 454, no. 3-4, 1999, pp. 207-212.
http://dx.doi.org/10.1016/S0370-2693(99)00375-5
---------- VANCOUVER ----------
Amati, D., Russo, J.G. Fundamental strings as black bodies. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 1999;454(3-4):207-212.
http://dx.doi.org/10.1016/S0370-2693(99)00375-5