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Electroweak precision physics via angular distributions in hadronic decays
E. Estrada, E. Passemar, S. Paz +2
Hadronic tau decays provide a unique low-energy laboratory for the charged-current interaction between quarks and leptons. Their use as an electroweak precision sector is, however,…
Probing baryon number with missing energy
Gudrun Hiller, Antonio Rodríguez-Sánchez, Daniel Wendler
Quark portal interactions with a light singlet fermion make baryon number testable through missing transverse energy (MET). We find that present LHC data constrain scale…
The Pion Sum Rule beyond the Chiral Limit
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
The difference between the charged and neutral pion masses can be predicted from a well-known dispersion relation involving an infinite-energy integral over experimental data, the…
Beyond Form Factors: Precise Angular Tests in Hadronic Decays
E. Estrada, E. Passemar, S. Paz +2
Semileptonic decays mainly proceed via interactions between charged lepton and quark currents. The hadronization of the quark current is intrinsically nonperturbative and gener…
On the Charm Contribution to the Muon Light-by-Light
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
We combine existing perturbative results to show that a precise analytic determination of the charm-quark contribution to the hadronic light-by-light (HLbL) part of the muon anomal…
The anomalous magnetic moment of the muon in the Standard Model: an update
R. Aliberti, T. Aoyama, E. Balzani +232
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, , updating the first White Paper (WP20) [1]. The pure QED and electroweak contrib…
Hadronic tau decays
Antonio Rodríguez-Sánchez
We give a pedagogical introduction to the rich phenomenology of hadronic tau decays. These decays provide a unique window into the interplay of electroweak and strong interactions…
Short-distance contributions to Hadronic-light-by-light for the muon
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
This talk discusses short-distance contributions to the hadronic light-by-light part of the muon g-2 as in the Standard Model. A short discussion about the theory prediction is fol…
Vector-like quark doublets, weak-basis invariants and CP violation
F. Albergaria, J. F. Bastos, B. Belfatto +4
We study Standard Model extensions with isodoublet vector-like quarks with standard charges. Their presence induces right-handed charged and neutral currents. We identify minimal s…
Constraints on the hadronic light-by-light tensor in corner kinematics for the muon
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
The dispersive approach to the hadronic light-by-light contribution to the muon involves an integral over three virtual photon momenta appearing in the light-by-light tensor.…
Constraints on baryon-number-violating top-quark operators in standard model effective field theory
Hector Gisbert, Antonio Rodríguez-Sánchez, Luiz Vale Silva
Within the Standard Model Effective Field Theory framework, we set indirect constraints on top quark operators that violate baryon number by one unit above the TeV scale. We find t…
Indirect constraints on top quark operators from a global SMEFT analysis
Francesco Garosi, David Marzocca, Antonio Rodríguez Sánchez +1
We perform a model-independent analysis of top-philic New Physics scenarios, under the assumption that only effective operators involving top quarks are generated at tree level. Wi…
The Euclidean Adler Function and its Interplay with and
M. Davier, D. Díaz-Calderón, B. Malaescu +3
Three different approaches to precisely describe the Adler function in the Euclidean regime at around are available: dispersion relations based on the hadronic…
Short-distance constraints on the hadronic light-by-light
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
The muon anomalous magnetic moment continues to attract interest due to the potential tension between experimental measurement [1,2] and the Standard Model prediction [3]. The hadr…
Constraints on the hadronic light-by-light in the Melnikov-Vainshtein regime
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez-Sánchez
The muon anomalous magnetic moment continues to attract attention due to the possible tension between the experimentally measured value and the theoretical Standard Model predictio…
On the sensitivity of the D parameter to new physics
Adam Falkowski, Antonio Rodríguez-Sánchez
Measurements of angular correlations in nuclear beta decay are important tests of the Standard Model (SM). Among those, the so-called D correlation parameter occupies a particular…
Violations of Quark-Hadron Duality in Low-Energy Determinations of
Antonio Pich, Antonio Rodríguez-Sánchez
Using the spectral functions measured in decays, we investigate the actual numerical impact of duality violations on the extraction of the strong coupling. These effects are ti…
Prospects for precise predictions of in the Standard Model
G. Colangelo, M. Davier, A. X. El-Khadra +79
We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon Theory Initiative to…
The strong coupling constant: State of the art and the decade ahead
D. d'Enterria, S. Kluth, G. Zanderighi +55
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expan…
Constraints on subleading interactions in beta decay Lagrangian
Adam Falkowski, Martín González-Alonso, Ajdin Palavrić +1
We discuss the effective field theory (EFT) for nuclear beta decay. The general quark-level EFT describing charged-current interactions between quarks and leptons is matched to the…
Semileptonic tau decays beyond the Standard Model
Vincenzo Cirigliano, David Díaz-Calderón, Adam Falkowski +2
Hadronic decays are studied as probe of new physics. We determine the dependence of several inclusive and exclusive observables on the Wilson coefficients of the low-energy…
Short-distance constraints in hadronic-light-by-light for the muon
Johan Bijnens, Nils Hermansson-Truedsson, Antonio Rodríguez Sánchez
In this talk recent progress in studying the short-distance properties of the hadronic light-by-light contribution to the muon is described. The intermediate and short-distan…
2-loop short-distance constraints for the HLbL
Johan Bijnens, Nils Hermansson-Truedsson, Laetitia Laub +1
The recent experimental measurement of the muon at Fermilab National Laboratory, at a tension with the Standard Model prediction, highlights the need for further impro…
SU(3) analysis of four-quark operators: and vacuum matrix elements
Antonio Pich, Antonio Rodríguez-Sánchez
Hadronic matrix elements of local four-quark operators play a central role in non-leptonic kaon decays, while vacuum matrix elements involving the same kind of operators appear in…