nLab Javier Fuentes-Martin

Selected writings

On the flavour anomalies and their potential explanation by leptoquarks:

• Alejandro Celis, Javier Fuentes-Martin, Avelino Vicente, Javier Virto, Gauge-invariant implications of the LHCb measurements on Lepton-Flavour Non-Universality, Phys. Rev. D 96, 035026 (2017) (arXiv:1704.05672)

• Michael J. Baker, Javier Fuentes-Martin, Gino Isidori, Matthias König, High-pT Signatures in Vector-Leptoquark Models (arXiv:1901.10480)

• Javier Fuentes-Martin, Gino Isidori, Matthias König, Nudzeim Selimovic, Vector Leptoquarks Beyond Tree Level (arxiv:1910.13474)

• Claudia Cornella, Darius A. Faroughy, Javier Fuentes-Martin, Gino Isidori, Matthias Neubert, Reading the footprints of the B-meson flavor anomalies (arXiv:2103.16558)

With the recent result $[$of LHCb$]$, for the first time a single observable affected by negligible theoretical uncertainties exhibits a deviation from the SM exceeding the $3 \sigma$ level. Equally striking is the overall coherence of the picture that emerges, especially in $b \to s \ell^+ \ell^-$ −transitions. As we shall show in this paper, combining all the $b \to s \ell^+ \ell^-$−observables in a very conservative way, the significance of the New Physics (NP) hypothesis formulated in 2014–2015 of a purely left-handed LFU-violating contact interaction has now reached a significance of $4.6 \sigma$.

$[\ldots]$ A more structural way of addressing the flavor structure of the model is the idea of implementing Pati-Salam unification

and in relation to axions:

• Javier Fuentes-Martin, Mario Reig, Avelino Vicente, 4321… axion! (arXiv:1907.02550)

On flavour anomalies via leptoquarks in Pati-Salam GUT$\,$on branes:

• Javier Fuentes-Martin, Gino Isidori, Julie Pagès, Ben A. Stefanek,

  Flavor Non-universal Pati-Salam Unification and Neutrino Masses, Physics Letters B Volume 820, 10 September 2021, 136484 (arXiv:2012.10492, talk recording)

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