Camboni, AlessandroCoquereau, SamuelGarrido Beltrán, LluísGascón Fora, DavidGraciani Díaz, RicardoGraugés Pous, EugeniMarin Benito, CarlaPicatoste Olloqui, EduardoRives Molina, Vicente JoséAlfonso Albero, AlejandroCalvo Gomez, M.Gironella Gironell, PereVazquez Gomez, R.LHCb Collaboration2022-06-072022-06-072017-032470-0010https://hdl.handle.net/2445/186403The B± meson production asymmetry in p p collisions is measured using B+→D¯ 0 π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of √{s }=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2 <pT<30 GeV /c , and rapidities in the range 2.1 <y <4.5 are measured to be Aprod(B+,√{s }=7 TeV )=(-0.41 ±0.49 ±0.10 )×10-2 , Aprod(B+,√{s }=8 TeV )=(-0.53 ±0.31 ±0.10 )×10-2 , where the first uncertainties are statistical and the second are systematic. These production asymmetries are used to correct the raw asymmetries of B+→J /ψ K+ decays, thus allowing a measurement of the C P asymmetry, AC P(B+→J /ψ K+) =(0.09 ±0.27 ±0.07 ) ×10-2 .25 p.application/pdfeng(c) American Physical Society, 2017HadronsGran Col·lisionador d'HadronsFísica de partículesExperimentsHadronsLarge Hadron Collider (France and Switzerland)Particle physicsExperimentsinfo:eu-repo/semantics/article6779802022-06-07info:eu-repo/semantics/openAccess