9 papers
Measurement of the ratio of branching fractions
LHCb collaboration, R. Aaij, M. Abdelfatah +1121
A measurement of the ratio of semileptonic branching fractions , defined as $\mathcal{R}(J/Ï) \equiv \mathcal{B}(B_c^+ \to J/ÏÏ^+ ν_Ï)/\mathcal{B}(B_c^+ \to…
Study of nuclear effects on charm production in light-ion collisions
LHCb collaboration, R. Aaij, M. Abdelfatah +1106
The onset of nuclear effects in light-ion collisions is studied by measuring the ratio of meson production between NeNe and OO collisions at a center-of-mass energy per nucle…
Searches for and decays
LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1185
The first searches for and decays at the LHCb experiment are conducted with collision data corresponding to an integrated lu…
First evidence of the decay
LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1182
The first evidence for the decay is reported using proton-proton collision data recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV,…
Observation of a new excited charm-strange meson in decays
LHCb collaboration, R. Aaij, M. Abdelfatah +1114
A new excited charm-strange meson is observed through an amplitude analysis of the full phase space of decays. The analysis is based on a proton-proton co…
Precision measurement of CP violation and branching fractions in decays and search for the rare decay
R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta +1177
The decay , with a asymmetry expected to be close to zero in the Standard Model, is theoretically clean and sensitive to potential new p…