M. Chrzaszcz

collaborators

14 papers

hep-ex2026

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to J / I ¨ I ¨ ^{+} I^½_{I ¨} ) / B (B_{c}^{+} \to J / I ¨ I^¼^{+} I^½_{I^} ¼)$

LHCb collaboration, R. Aaij, M. Abdelfatah +1121

A measurement of the ratio of semileptonic branching fractions $R (J I ¨ )$ , defined as $\mathcal{R}(J/Ï) \equiv \mathcal{B}(B_c^+ \to J/ÏÏ^+ Î½_Ï)/\mathcal{B}(B_c^+ \to…

hep-ex2026

Search for heavy neutral leptons in B-meson decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1184

A search for long-lived heavy neutral leptons produced in B-meson decays and decaying to a $I^¼^{\pm} I ¨ ^{\mp}$ final state is performed with data collected by the LHCb experiment in p…

hep-ex2026

Averages of $b$ -hadron, $c$ -hadron, and $I ¨ $ -lepton properties as of 2023

Sw. Banerjee, E. Ben-Haim, F. Bernlochner +35

This paper reports world averages of measurements of $b$ -hadron, $c$ -hadron, and $I ¨ $ -lepton properties obtained by the Heavy Flavour Averaging Group using results available before…

hep-ex2025

Search for the $B_{c}^{+} \to I ¨ _{c 1} (3872) I ¨ ^{+}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1128

A search for the decay $B_{c}^{+} \to I ¨ _{c 1} (3872) I ¨ ^{+}$ is reported using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass…

hep-ex2025

Measurement of the $I^_{c}^{+}$ to $D^{0}$ production cross-section ratio in peripheral PbPb collisions

LHCb collaboration

We report on a measurement of the $I^_{c}^{+}$ to $D^{0}$ production ratio in PbPb collisions at $s_{NN}$ = 5.02 TeV with the LHCb detector in the forward rapidity region $2 <y…

hep-ex2025

Evidence for CP violation in $B^{+} \to p p ˉ K^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +698

Three-body $B^{+} \to p p K^{+}$ and $B^{+} \to p p I ¨ ^{+}$ decays are studied using a data sample corresponding to an integrated luminosity of 3.0 $f b^{- 1}$ collected by…

Measurement of the ratio of branching fractions B(Bc+​→J/I¨I¨+I^½I¨​)/B(Bc+​→J/I¨I^¼+I^½I^​¼)

Search for heavy neutral leptons in B-meson decays

Averages of b-hadron, c-hadron, and I¨-lepton properties as of 2023

Search for the Bc+​→I¨c1​(3872)I¨+ decay

Measurement of the I^c+​ to D0 production cross-section ratio in peripheral PbPb collisions

Evidence for CP violation in B+→ppˉ​K+ decays

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to J / I ¨ I ¨ ^{+} I^½_{I ¨} ) / B (B_{c}^{+} \to J / I ¨ I^¼^{+} I^½_{I^} ¼)$

Averages of $b$ -hadron, $c$ -hadron, and $I ¨ $ -lepton properties as of 2023

Search for the $B_{c}^{+} \to I ¨ _{c 1} (3872) I ¨ ^{+}$ decay

Measurement of the $I^_{c}^{+}$ to $D^{0}$ production cross-section ratio in peripheral PbPb collisions

Evidence for CP violation in $B^{+} \to p p ˉ K^{+}$ decays