Generalized Veneziano and Virasoro amplitudes
| Autor: | Geiser, Nicholas, Lindwasser, Lukas W. |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP04(2023)031 |
| Popis: | We analyze so-called generalized Veneziano and generalized Virasoro amplitudes. Under some physical assumptions, we find that their spectra must satisfy an over-determined set of non-linear recursion relations. The recursion relation for the generalized Veneziano amplitudes can be solved analytically and yields a two-parameter family which includes the Veneziano amplitude, the one-parameter family of Coon amplitudes, and a larger two-parameter family of amplitudes with an infinite tower of spins at each mass level. In the generalized Virasoro case, the only consistent solution is the string spectrum. Comment: v1, 22 pages; v2, 28 pages: typos fixed, two figures added, unitarity analysis added; v3, minor changes to figures |
| Databáze: | arXiv |
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