% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Bedi:602586,
      author       = {Bedi, Ravneet and Gherghetta, Tony and Grojean, Christophe
                      and Sousa Fialho Guedes, Guilherme Luis de and Kley,
                      Jonathan and Vuong, Pham Ngoc Hoa},
      title        = {{S}mall instanton-induced flavor invariants and the axion
                      potential},
      reportid     = {PUBDB-2024-00662, DESY-24-019. arXiv:2402.09361.
                      CERN-TH-2024-022. HU-EP-24/05. UMN-TH-4313/24},
      year         = {2024},
      note         = {49 pages, 4 figures},
      abstract     = {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.},
      keywords     = {axion, potential (INSPIRE) / instanton, effect (INSPIRE) /
                      n, electric moment (INSPIRE) / axion, mass (INSPIRE) / CP,
                      violation (INSPIRE) / operator, dipole (INSPIRE) / flavor
                      (INSPIRE) / gluon (INSPIRE) / quantum chromodynamics
                      (INSPIRE)},
      cin          = {T},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe
                      (390833306) / ASYMMETRY - Essential Asymmetries of Nature
                      (101086085)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306 /
                      G:(EU-Grant)101086085},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2402.09361},
      howpublished = {arXiv:2402.09361},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2402.09361;\%\%$},
      doi          = {10.3204/PUBDB-2024-00662},
      url          = {https://bib-pubdb1.desy.de/record/602586},
}