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hep-ex2024

Measurement of asymmetry in decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1119

A measurement of the -violating parameters in decays is reported, based on the analysis of proton-proton collision data collected by the LHCb expe…

hep-ex2024

Test of lepton flavour universality with decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1132

The first test of lepton flavor universality between muons and electrons using () decays is presented. The measurement is performed with d…

hep-ex2024

Observation of the open-charm tetraquark candidate in the decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1133

An amplitude analysis of decays is performed using proton-proton collision data, corresponding to an integrated luminosity of $9\,\text{fb}^…

hep-ex2024

First evidence for direct CP violation in beauty to charmonium decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1131

The asymmetry and branching fraction of the CKM-suppressed decay are precisely measured relative to the favoured decay $B^+\!\to J\…

hep-ex2024

Constraints on the photon polarisation in transitions using decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1124

An angular analysis of the decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, correspo…

hep-ex2024

Measurement of meson production in fixed-target Ne collisions at = 68.5 GeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1132

The first measurement of meson production in fixed-target Ne collisions at GeV is presented. The mesons are reconstructed in their $K^{+…