# Search results for: B. C. Allanach

The European Physical Journal C > 2019 > 79 > 11 > 1-13

Journal of High Energy Physics > 2019 > 2019 > 8 > 1-23

*Z*

^{′}models that fit neutral current

*B*-anomalies, including constraints coming from measurements of Standard Model (SM) signatures at the LHC. The ‘MDM’ simplified model is not constrained by the SM measurements but

*is*strongly constrained by a 139 fb

^{−1}13 TeV ATLAS di-muon search. Constraints upon the ‘MUM’ simplified model are much weaker...

The European Physical Journal Special Topics > 2019 > 228 > 5 > 1109-1382

The European Physical Journal Special Topics > 2019 > 228 > 4 > 755-1107

The European Physical Journal C > 2019 > 79 > 6 > 1-161

^{+}e

^{-}, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders,...

The European Physical Journal Special Topics > 2019 > 228 > 2 > 261-623

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-24

*Z*

^{′}particle explains apparent measurements of lepton flavour non-universality in

*B*→

*K*

^{(}*

^{)}

*l*

^{+}

*l*

^{−}decays. Hadron collider sensitivities for direct production of such

*Z*

^{′}s have been previously studied in the narrow width limit for a

*μ*

^{+}

*μ*

^{−}final state. Here, we extend the analysis to sizeable decay widths and improve the...

Journal of High Energy Physics > 2019 > 2019 > 2 > 1-29

*ν*

_{R}). Methods from Diophantine analysis allow us to efficiently index the solutions...

Journal of High Energy Physics > 2018 > 2018 > 12 > 1-22

*R*

_{K}and R K ∗ $$ {R}_{K^{\left(\ast \right)}} $$ based on an anomaly-free, spontaneously-broken U(1)

_{F}gauge symmetry, without any fermionic fields beyond those of the Standard Model (SM). The model explains the hierarchical heaviness of the third family and the smallness of quark mixing. The U(1)

_{F}charges of the third...

The European Physical Journal C > 2018 > 78 > 7 > 1-10

Journal of High Energy Physics > 2018 > 2018 > 3 > 1-26

*B*→

*K*

^{(*)}

*μ*

^{+}

*μ*

^{−}decays are somewhat discrepant with Standard Model predictions. They may be harbingers of new physics at an energy scale potentially accessible to direct discovery. We estimate the sensitivity of future hadron colliders to the possible new particles that may be responsible for the anomalies at tree-level: leptoquarks or

*Z*′s. We consider luminosity upgrades...

The European Physical Journal C > 2017 > 77 > 9 > 1-13

*X*, which decays via other new on-shell particles

*n*into multi-(i.e. three or more) photon final states. In the limit that

*n*has a much smaller mass than

*X*, the multi-photon final state may dominantly appear as a two-photon final state because the $$\gamma $$ γ s from the

*n*decay...

The European Physical Journal C > 2016 > 76 > 9 > 1-13

Journal of High Energy Physics > 2014 > 2014 > 2 > 1-31

The European Physical Journal C > 2014 > 74 > 1 > 1-9

Journal of High Energy Physics > 2013 > 2013 > 7 > 1-21

Journal of High Energy Physics > 2013 > 2013 > 2 > 1-19

The European Physical Journal C > 2012 > 72 > 4 > 1-9

Journal of High Energy Physics > 2012 > 2012 > 5 > 1-25

The European Physical Journal C > 2011 > 71 > 12 > 1-21