W. Lucha

collaborators

4 papers

hep-ph2025

Scrutinizing dark-matter scenarios with $B \to (K, K^{*}) I^ˉ ½ I^½$ decays

Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov

Conceivable explanations of Belle-II measurements of a (surprising) excess of missing-energy decays of the $B$ meson to the $K$ meson not covered by standard-model neutrino-antineu…

hep-ph2025

Probing vector- vs scalar-mediator dark-matter scenarios in $B \to (K, K^{*}) M_{X}$ decays

Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov

Within the hypothesis of the dark-matter origin of the excess in $B \to K M_{X}$ decays over the standard-model expectation, observed by Belle-II, we show that: (i) Scalar- and vector…

hep-ph2025

Analysis of $B \to K M_{X}$ and $B \to K^{*} M_{X}$ decays in scalar- and vector-mediator dark-matter scenarios

Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov

The surprising excess of missing-energy events far beyond all standard-model expectations in the weak decays of the charged ground-state $B^{+}$ meson into some charged strange meson…

hep-ph2025

Analysis of $q_{rec}^{2}$ -distribution for $B \to K M_{X}$ and $B \to K^{*} M_{X}$ decays in a scalar-mediator dark-matter scenario

Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov

We demonstrate that the scalar-mediator dark-matter scenario is consistent with the experimental data on the decay $B \to K M_{X}$ and provides a good description of the shape of the…

Scrutinizing dark-matter scenarios with B→(K,K∗)I^ˉ½I^½ decays

Probing vector- vs scalar-mediator dark-matter scenarios in B→(K,K∗)MX​ decays

Analysis of B→KMX​ and B→K∗MX​ decays in scalar- and vector-mediator dark-matter scenarios

Analysis of qrec2​-distribution for B→KMX​ and B→K∗MX​ decays in a scalar-mediator dark-matter scenario

Scrutinizing dark-matter scenarios with $B \to (K, K^{*}) I^ˉ ½ I^½$ decays

Probing vector- vs scalar-mediator dark-matter scenarios in $B \to (K, K^{*}) M_{X}$ decays

Analysis of $B \to K M_{X}$ and $B \to K^{*} M_{X}$ decays in scalar- and vector-mediator dark-matter scenarios

Analysis of $q_{rec}^{2}$ -distribution for $B \to K M_{X}$ and $B \to K^{*} M_{X}$ decays in a scalar-mediator dark-matter scenario