Decay modes of highly excited string states and Kerr black holes | Zendy

Roberto Iengo | Zendy; Jussi Kalkkinen | Zendy

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Decay modes of highly excited string states and Kerr black holes

Author(s) -

Roberto Iengo,

Jussi Kalkkinen

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/11/025

Subject(s) - physics , graviton , massless particle , string (physics) , string theory , black hole (networking) , spin (aerodynamics) , excited state , quantum electrodynamics , quantum mechanics , mathematical physics , gravitation , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol , thermodynamics

We consider four-graviton scattering in Type II string theory on one-looplevel in the large centre of mass energy M^2 limit. We extract from it anexplicit integral expression for the full string theory corrections to theimaginary part of the mass-shift and the lifetime of a massive state with thehighest allowed spin J=2M^2+2. We find a decay rate that is up to log Mcorrections of order 1 in string units, times g_s^2. We also find that thedominant decay mode corresponds to the emission of light particles, whereas thedecay into two massive or two massless states is exponentially suppressed. Wediscuss the relation of our results to quantum gravity aspects of a Kerr BlackHole.Comment: 18 pages, LaTeX, uses jhep class V2: Section 5 improved, references and an appendix adde

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