The production of J/psi mesons accompanied by open charm, and of pairs of open charm hadrons are observed in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 355 pb(-1) collected with the LHCb detector. Model independent measurements of absolute cross-sections are given together with ratios to the measured J/psi and open charm cross-sections. The properties of these events are studied and compared to theoretical predictions.
Aaij, R., Carboni, G., Santovetti, E., Ii, (2012). Observation of double charm production involving open charm in pp collisions at root s=7 TeV. JOURNAL OF HIGH ENERGY PHYSICS(6) [10.1007/JHEP06(2012)141].
Observation of double charm production involving open charm in pp collisions at root s=7 TeV
CARBONI, GIOVANNI;SANTOVETTI, EMANUELE;
2012-01-01
Abstract
The production of J/psi mesons accompanied by open charm, and of pairs of open charm hadrons are observed in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 355 pb(-1) collected with the LHCb detector. Model independent measurements of absolute cross-sections are given together with ratios to the measured J/psi and open charm cross-sections. The properties of these events are studied and compared to theoretical predictions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
