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- W1972602803 abstract "We consider the conditions for integrating out heavy chiral fields and moduli in $mathcal{N}=1$ supergravity, subject to two explicit requirements. First, the expectation values of the heavy fields should be unaffected by low energy phenomena. Second, the low energy effective action should be described by $mathcal{N}=1$ supergravity. This leads to a working definition of decoupling in $mathcal{N}=1$ supergravity that is different from the usual condition of gravitational strength couplings between sectors, and that is the relevant one for inflation with moduli stabilization, where some light fields (the inflaton) can have long excursions in field space. It is also important for finding de Sitter vacua in flux compactifications such as LARGE volume and Kachru-Kallosh-Linde-Trivedi (KKLT) scenarios, since failure of the decoupling condition invalidates the implicit assumption that the stabilization and uplifting potentials have a low energy supergravity description. We derive a sufficient condition for supersymmetric decoupling, namely, that the Kahler invariant function $G=K+mathrm{log}|W{|}^{2}$ is of the form $G=L(mathrm{text{light}},H(mathrm{text{heavy}}))$ with $H$ and $L$ arbitrary functions, which includes the particular case $G=L(mathrm{text{light}})+H(mathrm{text{heavy}})$. The consistency condition does not hold in general for the ansatz $K=K(mathrm{text{light}})+K(mathrm{text{heavy}})$, $W=W(mathrm{text{light}})+W(mathrm{text{heavy}})$ and we discuss under what circumstances it does hold." @default.
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- W1972602803 date "2008-11-14" @default.
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- W1972602803 title "Consistent decoupling of heavy scalars and moduli inN=1supergravity" @default.
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- W1972602803 doi "https://doi.org/10.1103/physrevd.78.101901" @default.
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