REVIEW 4 cited by
Revisiting the vector leptoquark explanation of the B-physics anomalies
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
abstract
We present a thorough investigation of the vector leptoquark hypothesis for a combined explanation of the $B$-physics anomalies. We analyze this hypothesis from a twofold perspective, taking into account recent results from $B$-physics observables and high-$p_T$ searches. First, using a simplified model, we determine the general conditions for a successful low-energy fit in presence of right-handed leptoquark couplings (neglected in previous analyses). Second, we show how these conditions, in particular a sizable 2-3 family mixing, can be achieved in a motivated ultraviolet completion. Our analysis reinforces the phenomenological success of the vector leptoquark hypothesis in addressing the anomalies, and its compatibility with motivated extensions of the Standard Model based on the idea of flavor non-universal gauge interactions. The implications of right-handed leptoquark couplings for a series of key low-energy observables, namely $B_s \to \tau\tau$ and $\tau\to\mu$ lepton flavor violating processes, both in $\tau$ and in $B$ decays, are discussed in detail. The role of the ultraviolet completion in precisely estimating other low-energy observables, most notably $\Delta F=2$ amplitudes, is also addressed.
Forward citations
Cited by 4 Pith papers
-
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...
-
With or without U(2)? Probing non-standard flavor and helicity structures in semileptonic B decays
Under the minimally-broken U(2)_q × U(2)_ℓ flavor symmetry hypothesis, semileptonic B decay amplitudes are controlled by a few parameters, yielding testable correlations such as equal new-physics effects in b→u and b→...
-
Constraints on scalar leptoquarks from lepton and kaon physics
Scalar leptoquark couplings are constrained by a comprehensive set of upper bounds from tau, muon, electron, and kaon decay data, including standard model interference in rare K to pi l+ l- modes.
-
Constraints on New Physics from $B$ mesons
A 2019 review of B meson and kaon physics anomalies, summarizing the evidence for lepton flavor universality violation and tensions in mixing and CP violation, and assessing new physics explanations.
Discussion (0). Continue with ORCID to comment.