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Global Fit of Modified Quark Couplings to EW Gauge Bosons and Vector-Like Quarks in Light of the Cabibbo Angle Anomaly
Andreas Crivellin, Matthew Kirk, Teppei Kitahara +1
There are two tensions related to the Cabibbo angle of the CKM matrix. First, the determinations of from , , and decays disagree at the level.…
Impact of measurement on New Physics in transitions
Marco Fedele, Monika Blanke, Andreas Crivellin +4
Measurements of the branching ratios of and by the BaBar, Belle and LHCb collaborations co…
Width effects of broad new resonances in loop observables and application to
Andreas Crivellin, Martin Hoferichter
In the phenomenology of strong interactions most physical states acquire a substantial width, and thus can only be defined in a model-independent way by pole positions and residues…
Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021
Tulika Bose, Antonio Boveia, Caterina Doglioni +318
This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM) report. It combines the EF topical group reports of EF08 (Model-specific explorations), EF09 (More gen…
Muon Collider Forum Report
K. M. Black, S. Jindariani, D. Li +182
A multi-TeV muon collider offers a spectacular opportunity in the direct exploration of the energy frontier. Offering a combination of unprecedented energy collisions in a comparat…
Impact of Lorentz violation on anomalous magnetic moments of charged leptons
Andreas Crivellin, Fiona Kirk, Marco Schreck
We address the question whether a violation of Lorentz symmetry can explain the tension between the measurement and the Standard-Model prediction of the anomalous magnetic moment o…