S. Schacht

activity

20232026

collaborators

8 papers

hep-ph2026

$B ˉ \to D^{(*)} ℓ ν ˉ$ Branching Ratios and Evidence for Isospin Breaking in $Υ (4 S)$ Decays

Martin Jung, Stefan Schacht

We introduce a new method for the determination of the ratio of production fractions $R^{\pm 0} = B (Υ (4 S) \to B^{+} B^{-}) / B (Υ (4 S) \to B^{0} B ˉ^{0})$ based on $\bar B\to D^{…

hep-ph2025

CP Violation in Charmed Meson Decays into Final States with $η^{'}$

Carolina Bolognani, Ulrich Nierste, Stefan Schacht +1

We derive Standard Model predictions for the CP asymmetries of singly-Cabibbo suppressed $D \to P η^{'}$ decays, where $P = K, π, η$ . Our predictions are based on the approximate SU…

hep-ph2024

Anatomy of Non-Leptonic Two-Body Decays of Charmed Mesons into Final States with $η^{'}$

Carolina Bolognani, Ulrich Nierste, Stefan Schacht +1

We show that $D \to P η^{'}$ decay amplitudes, where $P = K, π, η$ , cannot be simply related to their $D \to P η$ counterparts with a single $η_{0}$ -- $η_{8}$ mixing angle. W…

hep-ph2024

Charm CP violation and searches

Stefan Schacht

Charm CP violation is a unique gate to the physics of up-type quarks and allows searches for physics beyond the Standard Model in new and exciting ways, complementary to kaon and $…

hep-ph2024

Reappraisal of SU(3)-flavor breaking in $B \to D P$

Jonathan Davies, Stefan Schacht, Nicola Skidmore +1

In light of recently found deviations of the experimental data from predictions from QCD factorization for $B_{(s)} \to D_{(s)} P$ decays, where $P = {π, K}$ , we systematicall…

hep-ph2024

Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: $x_{D}$ , $y_{D}$ , $∣ q / p ∣_{D}$ , $ϕ_{D}$ , DCPV in $D$ decays"

Patricia C. Magalhães, Tara Nanut Petrič, Stefan Schacht

We summarize the results of Working Group 7 at the 12th International Workshop on the CKM Unitarity Triangle (CKM 2023) which took place in Santiago de Compostela, Spain, 18--22 Se…

Bˉ→D(∗)ℓνˉ Branching Ratios and Evidence for Isospin Breaking in Υ(4S) Decays

CP Violation in Charmed Meson Decays into Final States with η′

Anatomy of Non-Leptonic Two-Body Decays of Charmed Mesons into Final States with η′

Charm CP violation and searches

Reappraisal of SU(3)-flavor breaking in B→DP

Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: xD​, yD​, ∣q/p∣D​, ϕD​, DCPV in D decays"

$B ˉ \to D^{(*)} ℓ ν ˉ$ Branching Ratios and Evidence for Isospin Breaking in $Υ (4 S)$ Decays

CP Violation in Charmed Meson Decays into Final States with $η^{'}$

Anatomy of Non-Leptonic Two-Body Decays of Charmed Mesons into Final States with $η^{'}$

Reappraisal of SU(3)-flavor breaking in $B \to D P$

Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: $x_{D}$ , $y_{D}$ , $∣ q / p ∣_{D}$ , $ϕ_{D}$ , DCPV in $D$ decays"