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Effective Theories for Quark Flavour Physics [PDF]
Effective Field Theory in Particle Physics and Cosmology, 2020 The purpose of the lectures that appear within this chapter is to provide the reader with an idea of how we can probe new physics with quark flavour observables using effective theory techniques.
L. Silvestrini
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Flavour hierarchies and $B$-anomalies in a twin Pati-Salam theory of flavour [PDF]
Proceedings of 8th Symposium on Prospects in the Physics of Discrete Symmetries — PoS(DISCRETE2022)In this manuscript, based on arXiv:2209.00276, I present a model which can simultaneously explain and connect the flavour hierarchies of the Standard Model with flavour anomalies in $B$-physics. I will briefly introduce the model and highlight the main features, including a common origin of Yukawa couplings and vector leptoquark $U_{1}$ couplings to ...
Mario Fernández Navarro
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Flavour oscillations in pseudo-Hermitian quantum theories [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2023), 2023 This note summarises recent progress in the formulation of flavour mixing and oscillations in pseudo-Hermitian quantum theories with non-Hermitian mass mixing matrices.
Robert Mason +2 more
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Can gauge theories of flavour be accessible at the LHC? [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2018 Horizontal gauge symmetries between fermion families and their spontaneous breaking can be at the origin of the inter-family mass hierarchies. The corresponding gauge bosons must have flavor changing couplings to fermions and generically the very stringent limits on their masses arise from flavour changing phenomena and CP-violation.
Benedetta Belfatto
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Generalised CP symmetry in modular-invariant models of flavour [PDF]
Journal of High Energy Physics, 2019 The formalism of combined finite modular and generalised CP (gCP) sym-metries for theories of flavour is developed. The corresponding consistency conditions for the two symmetry transformations acting on the modulus τ and on the matter fields are derived.
P.P. Novichkov +3 more
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NNLO Positivity Bounds on Chiral Perturbation Theory for a General Number of Flavours
Journal of High Energy Physics, 2021 Abstract We present positivity bounds, derived from the principles of analyticity, unitarity and crossing symmetry, that constrain the low-energy constants of chiral perturbation theory. Bounds are produced for 2, 3 or more flavours in meson-meson scattering with equal meson masses, up to and including next-to-next-to-leading order
Benjamin Alvarez +2 more
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Neutrino Flavour Waves Through the Quantum Vacuum: A Theory of Oscillations [PDF]
Physics Letters B24 pages, 4 ...
Markku Oksanen +2 more
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Lepton-flavour violating decays in theories with dimension 6 operators [PDF]
, 2016 Despite a large experimental effort, so far no evidence for flavour-violating decays of charged leptons such as l i → l j γ and l i → l j l k l k has been found.
Giovanni Marco Pruna, Adrian Signer
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Spectrum of SU(2) lattice gauge theory with two adjoint Dirac flavours [PDF]
Journal of High Energy Physics, 2009 An SU(2) gauge theory with two fermions transforming under the adjoint representation of the gauge group may appear conformal or almost conformal in the infrared. We use lattice simulations to study the spectrum of this theory and present results on the masses of several gauge singlet states as a function of the physical quark mass determined through ...
Ari J Hietanen +3 more
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Theory overview of heavy flavour production [PDF]
Proceedings of The 13th International Conference on B-Physics at Hadron Machines — PoS(BEAUTY 2011), 2011 Eric Laenen
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