Production of associated Y and open charm hadrons in pp collisions at %$ \sqrt{s}=7 %$ and 8 TeV via double parton scattering

Abstract Associated production of bottomonia and open charm hadrons in pp collisions at %$ \sqrt{s}=7 %$ and 8 TeV is observed using data corresponding to an integrated luminosity of 3 $ fb^{−1} $ accumulated with the LHCb detector. The observation of five combinations, Y(1S)$ D^{0} $, Y(2S)$ D^{0}...
Ausführliche Beschreibung

Abstract Associated production of bottomonia and open charm hadrons in pp collisions at %$ \sqrt{s}=7 %$ and 8 TeV is observed using data corresponding to an integrated luminosity of 3 $ fb^{−1} $ accumulated with the LHCb detector. The observation of five combinations, Y(1S)$ D^{0} $, Y(2S)$ D^{0} $, Y(1S)$ D^{+} $, Y(2S)$ D^{+} $ and Y(1S)Ds+, is reported. Production crosssections are measured for Y(1S)$ D^{0} $ and Y(1S)$ D^{+} $ pairs in the forward region. The measured cross-sections and the differential distributions indicate the dominance of double parton scattering as the main production mechanism. Ausführliche Beschreibung