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Open AccessThe neutrino force in neutrino backgrounds: Spin dependence and parity-violating effects
The neutrino force results from the exchange of a pair of neutrinos. A neutrino background can significantly influence this force. In this work, we present a comprehensive calculation of the neutrino force in ...
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Open AccessFermion pair radiation from accelerating classical systems
Accelerating classical systems that couple to a fermion-antifermion pair at the microscopic level can radiate pairs of fermions and lose energy in the process. In this work, we derive the generalization of the...
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Open AccessToward extracting \(\gamma \) from \(B\rightarrow DK\) without binning
\(B^\pm \rightarrow DK^\pm \) B ± ...
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Open AccessA precision relation between Γ(K → μ+μ−)(t) and \( \mathcal{B}\left({K}_L\to {\mu}^{+}{\mu}^{-}\right)/\mathcal{B}\left({K}_L\to \gamma \gamma \right) \)
We find that the phase appearing in the unitarity relation between B ...
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Open AccessThe branching fraction of \( {B}_s^0\to {K}^0{\overline{K}}^0 \) : three puzzles
The branching fraction of the B s → ...
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Open AccessNeutrino forces in neutrino backgrounds
The Standard Model predicts a long-range force, proportional to G F ...
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Open AccessThe mathematical structure of U-spin amplitude sum rules
We perform a systematic study of SU(2) flavor amplitude sum rules with particular emphasis on U-spin. This study reveals a rich mathematical structure underlying the sum rules that allows us to formulate an algor...
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Open AccessCKM substructure from the weak to the Planck scale
We look for relations among CKM matrix elements that are not consequences of the Wolfenstein parametrization. In particular, we search for products of CKM elements raised to integer powers that approximately e...
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Open AccessTheoretical challenges for flavor physics
We discuss some highlights of the FCC- \(ee\) ee ...
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Open AccessK → μ+μ− as a clean probe of short-distance physics
The K → μ+μ− decay is often considered to be uninformative of fundamental theory parameters since the decay is polluted by long-distance hadronic effects. We demonstrate that, using very mild assumptions and util...
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Open AccessProbing the ∆U = 0 rule in three body charm decays
CP violation in charm decay was observed in the decays D0 → P±P∓ of a D0 meson to two pseudoscalars. When interpreted within the SM, the results imply that the ratio of the relevant rescattering amplitudes has a ...
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Open AccessCKM substructure
The CKM matrix is not generic. The Wolfenstein parametrization encodes structure by having one small parameter, λ ≈ 0.22. We pose the question: is there substructure in the CKM matrix that goes beyond the single ...
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Open AccessOn the statistical treatment of the Cabibbo angle anomaly
We point out that testing the equality of the Cabibbo angle as extracted from Γ(K → πlν), the ratio Γ(K → lν)/Γ(π → lν) and nuclear β decays is not identical to a test of first row unitarity of the Cabibbo-Kobaya...
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Open AccessSU(3)F analysis for beauty baryon decays
We perform a general SU(3)F analysis of b → c c ...
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Open AccessThe emergence of the ΔU = 0 rule in charm physics
We discuss the implications of the recent discovery of CP violation in two-body SCS D decays by LHCb. We show that the result can be explained within the SM without the need for any large SU(3) breaking effects. ...
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Open AccessSelf-Destructing Dark Matter
We present Self-Destructing Dark Matter (SDDM), a new class of dark matter models which are detectable in large neutrino detectors. In this class of models, a component of dark matter can transition from a lon...
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Open AccessY and ψ leptonic decays as probes of solutions to the R(D (*)) puzzle
Experimental measurements of the ratios R ...
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Another piece of the puzzle
A study of Λb baryon decays has provided the first direct experimental evidence that spinning matter and antimatter differ. This result may help us understand the puzzling matter–antimatter imbalance in the Unive...
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Open AccessProbing a slepton Higgs on all frontiers
We study several aspects of supersymmetric models with a U(1) R symmetry where the Higgs doublet is identified with the superpartner of a lepton. We derive new, stronger bounds ...
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Open AccessHeavy baryons as polarimeters at colliders
In new-physics processes that produce b or c jets, a measurement of the initial b or c-quark polarization could provide crucial information about the structure of the new physics. In the heavy-quark limit, the b ...
