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001     602586
005     20250801212027.0
024 7 _ |a Bedi:2024wqg
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024 7 _ |a inspire:2758426
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024 7 _ |a arXiv:2402.09361
|2 arXiv
024 7 _ |a 10.3204/PUBDB-2024-00662
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037 _ _ |a PUBDB-2024-00662
041 _ _ |a English
088 _ _ |a DESY-24-019
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088 _ _ |a arXiv:2402.09361
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088 _ _ |a CERN-TH-2024-022
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088 _ _ |a HU-EP-24/05
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088 _ _ |a UMN-TH-4313/24
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100 1 _ |a Bedi, Ravneet
|b 0
245 _ _ |a Small instanton-induced flavor invariants and the axion potential
260 _ _ |c 2024
336 7 _ |a Preprint
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336 7 _ |a Electronic Article
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336 7 _ |a preprint
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336 7 _ |a ARTICLE
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336 7 _ |a Output Types/Working Paper
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500 _ _ |a 49 pages, 4 figures
520 _ _ |a Small instantons which increase the axion mass due to an appropriate modification of QCD at a UV scale $\Lambda_{\rm SI}$, can also enhance the effect of CP-violating operators to shift the axion potential minimum by an amount, $\theta_{\rm ind}$, proportional to the flavorful couplings in the SMEFT. Since physical observables must be flavor basis independent, we construct a basis of determinant-like flavor invariants that arise from instanton calculations containing the effects of dimension-six CP-odd operators at the scale $\require{cancel}\Lambda_{\cancel{\rm CP}}$. This new basis provides a more reliable estimate of the shift $\theta_{\rm ind}$, that is severely constrained by neutron electric dipole moment experiments. In particular, for the case of four-quark, semi-leptonic and gluon dipole operators, these invariants are then used to provide improved limits on the ratio of scales $\require{cancel}\Lambda_{\rm SI}/\Lambda_{\cancel{\rm CP}}$ for different flavor scenarios. The CP-odd flavor invariants also provide a classification of the leading effects from Wilson coefficients, and as an example, we show that a semi-leptonic four-fermion operator is subdominant compared to the four-quark operators. More generally, the flavor invariants, together with an instanton NDA, can be used to more accurately estimate small instanton effects in the axion potential that arise from any SMEFT operator.
536 _ _ |a 611 - Fundamental Particles and Forces (POF4-611)
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536 _ _ |a ASYMMETRY - Essential Asymmetries of Nature (101086085)
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588 _ _ |a Dataset connected to INSPIRE
650 _ 7 |a axion, potential
|2 INSPIRE
650 _ 7 |a instanton, effect
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650 _ 7 |a n, electric moment
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650 _ 7 |a axion, mass
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650 _ 7 |a CP, violation
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650 _ 7 |a operator, dipole
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650 _ 7 |a flavor
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650 _ 7 |a gluon
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650 _ 7 |a quantum chromodynamics
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693 _ _ |0 EXP:(DE-MLZ)NOSPEC-20140101
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700 1 _ |a Gherghetta, Tony
|b 1
700 1 _ |a Grojean, Christophe
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700 1 _ |a Sousa Fialho Guedes, Guilherme Luis de
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700 1 _ |a Kley, Jonathan
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700 1 _ |a Vuong, Pham Ngoc Hoa
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913 1 _ |a DE-HGF
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