Cribiori, Niccolo, Parameswaran, Susha, Tonioni, Flavio 
ORCID: 0000-0001-9683-0698 and Wrase, Timm
(2022)
Modular invariance, misalignment and finiteness in non-supersymmetric strings.
JOURNAL OF HIGH ENERGY PHYSICS, 2022 (1).
127-.
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Abstract
In this article we show that finite perturbative corrections in non-supersymmetric strings can be understood via an interplay between modular invariance and misaligned supersymmetry. While modular invariance is known to be crucial in closed-string models, its presence and role for open strings is more subtle. Nevertheless, we argue that it leads to cancellations in physical quantities such as the one-loop cosmological constant and prevents them from diverging. In particular, we show that if the sector-averaged number of states does not grow exponentially, as predicted by misaligned supersymmetry, all exponential divergences in the one-loop cosmological constant cancel out as well. To account for the absence of power-law divergences, instead, we need to resort to the modular structure of the partition function. We finally comment on the presence of misaligned supersymmetry in the known 10-dimensional tachyon-free non-supersymmetric string theories.
| Item Type: | Article |
|---|---|
| Additional Information: | 36 pages + appendices, 4 figures; v2: minor edits + references added |
| Uncontrolled Keywords: | D-branes, Superstring Vacua, Superstrings and Heterotic Strings, Supersymmetry Breaking |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 08 Nov 2021 07:56 |
| Last Modified: | 15 Mar 2024 09:04 |
| DOI: | 10.1007/JHEP01(2022)127 |
| Open Access URL: | https://link.springer.com/article/10.1007/JHEP01(2... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3142930 |
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