Physics of leptoquarks in precision experiments and at particle colliders

I Doršner, S Fajfer, A Greljo, JF Kamenik, N Košnik - Physics Reports, 2016 - Elsevier
We present a comprehensive review of physics effects generated by leptoquarks (LQs), ie,
hypothetical particles that can turn quarks into leptons and vice versa, of either scalar or …

Physics case for an LHCb Upgrade II-Opportunities in flavour physics, and beyond, in the HL-LHC era

I Bediaga, MC Torres, JM De Miranda, A Gomes… - arXiv preprint arXiv …, 2018 - arxiv.org
The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and
study additional physics topics that take advantage of the forward acceptance of the LHCb …

Flavor models for

M Freytsis, Z Ligeti, JT Ruderman - Physical Review D, 2015 - APS
The ratio of the measured B¯→ D (*) ℓ ν¯ decay rates for ℓ= τ vs e, μ deviate from the
standard model (SM) by about 4 σ. We show that the data are in tension with the SM …

[HTML][HTML] Vector leptoquark resolution of RK and RD (⁎) puzzles

S Fajfer, N Košnik - Physics Letters B, 2016 - Elsevier
We propose that three recent anomalies in B meson decays, RD (⁎), RK, and P 5′, might
be explained by only one vector leptoquark weak triplet state. The constraints on the …

Clues for flavor from rare lepton and quark decays

I de Medeiros Varzielas, G Hiller - Journal of High Energy Physics, 2015 - Springer
A bstract Flavor symmetries successfully explain lepton and quark masses and mixings yet it
is usually hard to distinguish different models that predict the same mixing angles. Further …

Minimally flavored colored scalar in and the mass matrices constraints

I Doršner, S Fajfer, N Košnik, I Nišandžić - Journal of High Energy Physics, 2013 - Springer
A bstract The presence of a colored scalar that is a weak doublet with fractional electric
charges of| Q|= 2/3 and| Q|= 5/3 with mass below 1 TeV can provide an explanation of the …

Prospects for measurements with strange hadrons at LHCb

AA Alves Junior, MO Bettler, A Brea Rodríguez… - Journal of High Energy …, 2019 - Springer
A bstract This report details the capabilities of LHCb and its upgrades towards the study of
kaons and hyperons. The analyses performed so far are reviewed, elaborating on the …

Constraints on new physics in mixing in the light of recent LHCb data

A Lenz, U Nierste, J Charles, S Descotes-Genon… - Physical Review D …, 2012 - APS
We perform model-independent statistical analyses of three scenarios accommodating new
physics (NP) in Δ F= 2 flavor-changing neutral current amplitudes. In a scenario in which NP …

New Physics in Gamma_12^ s:(sbar b)(taubar tau) Operators

C Bobeth, U Haisch - arXiv preprint arXiv:1109.1826, 2011 - arxiv.org
Measurements performed at the Tevatron of both the like-sign dimuon charge asymmetry in
B_d, s-meson samples and the mixing-induced CP asymmetry in B_s-> J/psi phi depart from …

Leptoquark mechanism of neutrino masses within the grand unification framework

I Doršner, S Fajfer, N Košnik - The European Physical Journal C, 2017 - Springer
We demonstrate the viability of the one-loop neutrino mass mechanism within the framework
of grand unification when the loop particles comprise scalar leptoquarks (LQs) and quarks of …