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@ARTICLE{Bonnefoy:604494,
author = {Bonnefoy, Quentin and Kley, Jonathan and Liu, Di and Rossia
and Yao, Chang Yuan},
title = {{A}ligned {Y}et {L}arge {D}ipoles: a {SMEFT} {S}tudy},
reportid = {PUBDB-2024-01122, DESY-24-033. arXiv:2403.13065.
HU-EP-24/09. LAPTH-011/24. COMETA-2024-004},
year = {2024},
note = {I couldn't enter the following grants that we acknowledge
in the paper:Grants No. NSFC-11975130, No. NSFC-12035008,
No. NSFC-12047533, the National Key Research and Development
Program of China under Grant No. 2017YFA0402200, the China
Postdoctoral Science Foundation under Grant No. 2018M641621
and the Helmholtz-OCPC International Postdoctoral Exchange
Fellowship ProgramDOE Early Career Grant DESC0019225starting
grant of the French Ministère de l’Enseignement
supérieur et de la RechercheEuropean Research Council (ERC)
under the European Union’s Horizon 2020 research and
innovation programme (Grant agreement No. 949451) and a
Royal Society University Research Fellowship through grant
URF/R1/201553funding from the French Programme
d’investissements d’avenir through the Enigmass LabexSee
also the acknowledgements of the paper.},
abstract = {We study a non-universal flavor scenario at the level of
the Standard Model Effective Field Theory, according to
which the matrix of Wilson coefficients $c_{uW}$ of an
up-type electroweak quark dipole operator is aligned with
the up-type Yukawa coupling. Such an alignment usually
follows from the assumption of Minimal Flavor Violation
(MFV), away from which we step by allowing the entries of
$c_{uW}$ to be sizable along the first quark generations. A
particular example, which we refer to as ``inverse hierarchy
MFV', features Wilson coefficients inversely proportional to
quark masses, and arises from BSM models respecting MFV and
containing heavy fields that replicate the mass hierarchy of
SM quarks. We then analyze the phenomenology driven by
$c_{uW}$ at colliders and at lower-energy flavor
experiments. We show that precision measurements of the
process $pp\rightarrow W h\rightarrow \gamma\gamma\ell\nu$
at FCC-$hh$ could set an upper bound on
$|c_{uW}|\lesssim\mathcal{O}(10^{-2})(\Lambda/{\rm
TeV})^{2}$, with $\Lambda$ the cutoff of the effective field
theory. This bound is an order of magnitude stronger than
the existing LHC bounds. Moreover, we estimate that $W
h\rightarrow b\bar b \ell\nu$ at HL-LHC could also give
competitive bounds. In the low-energy regime, we consider
bounds arising from rare kaon decays, which turn out to be
loose, $|c_{uW}^{11}|<\mathcal{O}(1)(\Lambda/{\rm
TeV})^{2}$. We finally demonstrate that our flavor and
operator assumptions can be derived from a weakly-coupled UV
model, which we choose to simultaneously illustrate the UV
origin of inverse hierarchy MFV.},
keywords = {new physics (INSPIRE) / effective field theory (INSPIRE) /
operator: dipole (INSPIRE) / flavor: violation: minimal
(INSPIRE) / CERN LHC Coll: upgrade (INSPIRE) / FCC-hh
(INSPIRE) / p p: scattering (INSPIRE) / Higgs particle:
production (INSPIRE) / W: production (INSPIRE) / electroweak
interaction (INSPIRE) / p p --> W Higgs particle (INSPIRE) /
W Higgs particle --> bottom anti-bottom lepton neutrino
(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 = {2403.13065},
howpublished = {arXiv:2403.13065},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2403.13065;\%\%$},
doi = {10.3204/PUBDB-2024-01122},
url = {https://bib-pubdb1.desy.de/record/604494},
}