Abstract
We consider breaking of supersymmetry in intersecting D-brane configurations by slight deviation of the angles from their supersymmetric values. We compute the masses generated by radiative corrections for the adjoint scalars on the brane world-volumes. In the open string channel, the string two-point function receives contributions only from the infrared and the ultraviolet limits. The latter is due to tree-level closed string uncanceled NS-NS tadpoles, which we explicitly reproduce from the effective Born-Infeld action. On the other hand, the infrared region reproduces the one-loop mediation of supersymmetry breaking in the effective gauge theory, via messengers and their Kaluza-Klein excitations. In the toroidal set-up considered here, it receives contributions only from N ≈ 4 and N ≈ 2 supersymmetric configurations, and thus always leads at leading order to a tachyonic direction, in agreement with effective field theory expectations.
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ArXiv ePrint: 1105.0591
On leave from CPHT (UMR CNRS 7644) Ecole Polytechnique, F-91128 Palaiseau. (I. Antoniadis)
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Anastasopoulos, P., Antoniadis, I., Benakli, K. et al. One-loop adjoint masses for non-supersymmetric intersecting branes. J. High Energ. Phys. 2011, 120 (2011). https://doi.org/10.1007/JHEP08(2011)120
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DOI: https://doi.org/10.1007/JHEP08(2011)120