REVIEW 9 cited by
Third-Family Quark-Lepton Unification and Electroweak Precision Tests
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
We analyze the compatibility of the hypothesis of third-family quark-lepton unification at the TeV scale with electroweak precision data, lepton flavor universality tests, and high-$p_T$ constraints. We work within the framework of the UV complete flavor non-universal 4321 gauge model, which is matched at one loop to the Standard Model Effective Field Theory. For consistency, all electroweak precision observables are also computed at one loop within the effective field theory. At tree level, the most sizeable corrections are to $W\rightarrow \tau\nu_\tau$ and $Z \to \nu_\tau \nu_\tau$ due to integrating out a pseudo-Dirac singlet fermion required by the model for neutrino mass generation. At loop level, the new colored states of the model generate large flavor-universal contributions to the electroweak precision observables via leading- and next-to-leading log running effects, yielding a significant improvement in the electroweak fit (including an increase in the $W$-boson mass). These effects cannot be decoupled if the model addresses the charged-current $B$-meson anomalies. Overall, we find good compatibility between the data sets, while simultaneously satisfying all low- and high-energy constraints.
Forward citations
Cited by 9 Pith papers
-
The Dark Side of a Tera-Z Factory
Future Tera-Z runs at FCC-ee/CEPC could indirectly probe TeV-scale t-channel dark matter portals through one-loop and two-loop electroweak precision shifts, and in leptophilic models would be the only planned experime...
-
In Search of an Invisible $Z^\prime$
Anomaly cancellation forces every Z-pole-invisible, anomaly-free Z' to couple to valence quarks and at least two charged lepton flavours, ensuring LHC coverage.
-
Electroweak precision observables at NLL order in the SMEFT
SMEFT electroweak precision predictions can be upgraded to NLL accuracy using two-loop renormalization-group evolution plus one-loop matching, yielding complete 210-coefficient expressions and stronger indirect new-ph...
-
Neutrinoless Double-Beta Decays from Operator Mixing
Renormalization-group mixing lets heavy-quark dimension-seven operators feed neutrinoless double-beta decay, giving some of the strongest current bounds on these new-physics operators.
-
Probing New Physics with the Electron Yukawa coupling
Simplified models that can chirally enhance the electron Yukawa coupling are classified, and their reach at FCC-ee and via (g-2)_e is quantified, showing (g-2)_e is often competitive but not always.
-
A common origin of the Higgs boson and the flavor hierarchies
A unified TeV-scale model produces the Higgs as a pseudo-Goldstone boson from the same gauge deconstruction that suppresses light-family Yukawa couplings and CKM mixing while leaving PMNS mixing anarchic.
-
On the EFT validity for Drell-Yan tails at the LHC
For t-channel mediators such as the U1 leptoquark, Drell-Yan EFT bounds are accurate at the 10% level for masses above about 1.5 TeV when the series is truncated at amplitude level, while s-channel mediators need E mu...
-
Test of lepton flavour universality in $W$-boson decays into electrons and $\tau$-leptons using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
ATLAS measures R_tau/e = 0.975 +/- 0.012 (stat) +/- 0.020 (syst) for W boson decays to tau versus electron, consistent with lepton flavour universality.
-
Accuracy complements energy: electroweak precision tests at Tera-Z
Z-pole precision at a Tera-Z factory gives projected sensitivities to Higgs and gauge SMEFT operators that are competitive with, and complementary to, higher-energy runs such as WW and ZH.
Discussion (0). Continue with ORCID to comment.