Regge behavior saves string theory from causality violations
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Dokumenter
- art_10.1007_JHEP05(2015)144
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Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. [1]. We analyze in detail this question by considering high-energy string-brane collisions at impact parameters b ≤ l s (the string-length parameter) with l s ≫ R p (the characteristic scale of the Dp-brane geometry). If we keep only the contribution of the massless states causality is violated for a set of initial states whose polarization is suitably chosen with respect to the impact parameter vector. Such violations are instead neatly avoided when the full structure of string theory — and in particular its Regge behavior — is taken into account.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 144 |
Tidsskrift | Journal of High Energy Physics (Online) |
Vol/bind | 2015 |
Udgave nummer | 05 |
Antal sider | 20 |
ISSN | 1126-6708 |
DOI | |
Status | Udgivet - 27 maj 2015 |
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