$\mathcal{N}=2$ Supersymmetry Partial Breaking and Tadpole Anomaly

We consider the $U(1{)}^n$ extension of the effective $\mathcal{N}=2$ supersymmetric $U(1)\times U(1)$ model of $arXiv:1204.2141$; and study the explicit relationship between partial breaking of $\mathcal{N}=2$ supersymmetry constraint and D3 brane tadpole anomaly of type IIB string on Calabi-Yau threefolds in presence of H${}^{RR}$ and H${}^{NS}$ fluxes. We also comment on supersymmetry breaking in the particular $\mathcal{N}=2$ $U(1)$ Maxwell theory; and study its interpretation in connection with the tadpole anomaly with extra localized flux sources.