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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), 2023 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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Twin Pati-Salam theory of flavour with a TeV scale vector leptoquark [PDF]
Journal of High Energy Physics, 2021 Abstract We propose a twin Pati-Salam (PS) theory of flavour broken to the G4321 gauge group at high energies, then to the Standard Model at low energies, yielding a TeV scale vector leptoquark $$ {U}_1^{\mu } $$ U 1 μ (
Stephen F. King
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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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Constraining flavour patterns of scalar leptoquarks in the effective field theory [PDF]
Journal of High Energy Physics, 2021 Abstract We investigate the viability of extending the Standard Model with S1 and S3 scalar leptoquarks when the flavour structure is parametrized in terms of Froggatt-Nielsen charges. In contrast to a similar analysis with a vector leptoquark, we find essentially two solutions for the charges that fit the experimental constraints,
Marzia Bordone +3 more
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Twin Pati-Salam theory of flavour for a new picture of $B$-anomalies [PDF]
, 2023 6 pages, 2 figures, contribution to the 2023 Electroweak session of the 57th Rencontres de ...
Mario Fernández Navarro
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Minimal complete tri-hypercharge theories of flavour
Journal of High Energy PhysicsThe tri-hypercharge proposal introduces a separate gauged weak hypercharge assigned to each fermion family as the origin of flavour. This is arguably one of the simplest setups for building “gauge non-universal theories of flavour” or “flavour ...
Mario Fernández Navarro +2 more
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Introduction to effective field theories. 1. Heisenberg-Euler effective theory, decoupling of heavy flavours [PDF]
, 2009 Lectures at the Helmholtz International School-Workshop "Calculations for modern and future colliders", Dubna, July 10-20, 2009; 47 ...
Andrey Grozin
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B-anomalies in a twin Pati-Salam theory of flavour including the 2022 LHCb $$ {R}_{K^{\left(\ast \right)}} $$ analysis [PDF]
Journal of High Energy Physics, 2023 Mario Fernández Navarro +1 more
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Natural neutrino mass hierarchy in a theory of gauge flavour deconstruction [PDF]
We show how a natural neutrino mass hierarchy with large lepton mixing angles may be achieved in a theory of gauge flavour deconstruction. Hitherto it has been shown that neutrino anarchy may result from such theories, but here we show that this need not necessarily be the case.
Mario Fernández Navarro +2 more
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Journal of High Energy Physics, 2022 We study the flavor structure of the lepton and baryon number-conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several well-motivated flavor symmetries and symmetry-breaking ...
Admir Greljo +2 more
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