A. Lenz

activity

19972023

most citedFirst Look at the Physics Case of TLEP

429 citations · 5.2k across the 90 of their papers we have counts for

collaborators

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89 papers · 1 filter

hep-ph2023★ 11 cited

Quark-hadron duality at work: lifetimes of bottom baryons

James Gratrex, Alexander Lenz, Blaženka Melić +3

In the 1990s, very low experimental values for the lifetime ratio $τ (Λ_{b}) / τ (B_{d})$ triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE),…

hep-ph2022★ 2 cited

Taming New Physics in $b \to c u ˉ d (s)$ with $τ (B^{+}) / τ (B_{d})$ and $a_{s l}^{d}$

Alexander Lenz, Jakob Müller, Maria Laura Piscopo +1

Inspired by the recently observed tensions between the experimental data and the theoretical predictions, based on QCD factorisation, for several colour-allowed non-leptonic $B$ -me…

hep-ph2022★ 32 cited

Disintegration of beauty: a precision study

Alexander Lenz, Maria Laura Piscopo, Aleksey V. Rusov

We update the Standard Model (SM) predictions for $B$ -meson lifetimes within the heavy quark expansion (HQE). Including for the first time the contribution of the Darwin operator,…

hep-ph2022★ 13 cited

MUonE, muon $g - 2$ and electroweak precision constraints within 2HDMs

Oliver Atkinson, Matthew Black, Christoph Englert +2

Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed dis…

hep-ph2022★ 25 cited

The Flavourful Present and Future of 2HDMs at the Collider Energy Frontier

Oliver Atkinson, Matthew Black, Christoph Englert +3

We study the intersection of flavour and collider physics for Two-Higgs-Doublet models of Type I and II. Drawing from the flavour precision-LHC exotics search complementarity, we a…

hep-ph2021★ 32 cited

$S U (3)$ breaking effects in $B$ and $D$ meson lifetimes

Daniel King, Alexander Lenz, Thomas Rauh

In the heavy quark expansion (HQE) of the total decay rates of $B_{s}$ and $D_{s}^{+}$ mesons non-perturbative matrix elements of four quark operators are arising as phase space enhanced…

Quark-hadron duality at work: lifetimes of bottom baryons

Taming New Physics in b→cuˉd(s) with τ(B+)/τ(Bd​) and asld​

Disintegration of beauty: a precision study

MUonE, muon g−2 and electroweak precision constraints within 2HDMs

The Flavourful Present and Future of 2HDMs at the Collider Energy Frontier

SU(3) breaking effects in B and D meson lifetimes

Taming New Physics in $b \to c u ˉ d (s)$ with $τ (B^{+}) / τ (B_{d})$ and $a_{s l}^{d}$

MUonE, muon $g - 2$ and electroweak precision constraints within 2HDMs

$S U (3)$ breaking effects in $B$ and $D$ meson lifetimes