UV Shadows in EFTs: Accidental Symmetries, Robustness and No‐Scale Supergravity
UV Shadows in EFTs: Accidental Symmetries, Robustness and No‐Scale Supergravity
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EFT 中的紫外线阴影:偶然对称性、鲁棒性和无尺度超重力
DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
F. Quevedo
中科院分区:
文献类型:
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作者:
C. Burgess;M. Cicoli;David Ciupke;S. Krippendorf;F. Quevedo
We argue that accidental approximate scaling symmetries are robust predictions of weakly coupled string vacua, and show that their interplay with supersymmetry and other (generalised) internal symmetries underlies the ubiquitous appearance of no‐scale supergravities in low‐energy 4D EFTs. We identify 4 nested types of no‐scale supergravities, and show how leading quantum corrections can break scale invariance while preserving some no‐scale properties (including non‐supersymmetric flat directions). We use these ideas to classify corrections to the low‐energy 4D supergravity action in perturbative 10D string vacua, including both bulk and brane contributions. Our prediction for the Kähler potential at any fixed order in α′ and string loops agrees with all extant calculations. p‐form fields play two important roles: they spawn many (generalised) shift symmetries; and space‐filling 4‐forms teach 4D physics about higher‐dimensional phenomena like flux quantisation. We argue that these robust symmetry arguments suffice to understand obstructions to finding classical de Sitter vacua, and suggest how to get around them in UV complete models.
影响因子:
5.4
作者:
C. P. Burgess;L. van Nierop;S. Parameswaran;A. Salvio;M. Williams
通讯作者:
M. Williams
影响因子:
5.4
作者:
F. F. Gautason;D. Junghans;M. Zagermann
通讯作者:
M. Zagermann
影响因子:
5.4
作者:
Michael Haack with M. Berg;J. U. Kang;S. Sjörs
通讯作者:
S. Sjörs