Conveners
Day 4: Morning 1
- Lovro Dulibić (Ruđer Bošković Institute)
Day 4: Morning 2
- Anastasia Boushmelev (University of Siegen)
Day 4: Afternoon 1
- Tobias Hurth (Johannes Gutenberg University Mainz)
In this talk I will summarize the theory and phenomenology status of the inclusive penguin decay $B \to X_s \ell \ell$. In the high-$q^2$ (soft recoil) region above the narrow charmonium resonances, the inclusive rate is dominated by two exclusive modes $B \to K^{(*)}\ell \ell$. I will explain that this property of the spectrum provides an opportunity to apply the toolkit of inclusive B decays...
Over the last few years, a puzzling discrepancy in the non-leptonic $B$ to $D$ plus light meson decays has arisen, with large tensions between experimental measurements and theory prediction from QCD factorisation.
In this talk, I will summarise the current state of these discrepancies, discuss EFT models that would reduce the discrepancies, and then show how recent LHC measurements of top...
We study the penguin-mediated $\bar{B}_{d(s)}\to K^{(*)0}\bar{K}^{(*)0}$ and $\bar{B}_{d(s)}\to\bar{K}^{*0}(K^{*0})\phi$ transitions. We propose optimised observables $L_{K^(*)\bar{K}^(*)}$, $L_{K^*\phi}$ from the ratio of longitudinal branching ratios of these decays, with limited hadronic uncertainties and enhanced sensitivity to New Physics. $L_{K^{(*)}\bar{K}^{(*)}}$ deviates at the...
Exploiting the relation between real-space Wilsonian renormalization group transformations and gradient flow, we show how to determine the $\beta$ function and obtain the QCD $\Lambda$ parameter. Moreover, we use this framework to develop a novel nonperturbative renormalization scheme for local operators. We demonstrate our method using nonperturbative results based on simulations with...
Neutral meson mixing and meson lifetimes are theory-side parametrised in terms four-quark operators which can be determined by calculating weak decay matrix elements using lattice QCD.
While calculations of meson mixing matrix elements are standard, determinations of lifetimes typically suffer from complications in renormalisation procedures because dimension-6 four-quark operators can mix...
