With a segmented total absorption calorimeter of large acceptance, we have measured the total transverse energy spectrum for proton-antiproton collisions at sqrt(S)= 540 GeV up to ΣET= 130 GeV in the pseudo-rapidity range |η|< 1.5. Using two different algorithms, we have looked for localized depositions of transverse energy (jets). For ΣET > 40 GeV, the fraction of events with two jets increases with ΣET; this event structure is dominant for ΣET > 100 GeV. We measure the inclusive jet cross section up to ET(jet) = 60 GeV and the two-jets mass distribution to 120 GeV/c2. The measured cross sections are compatible with the predictions of hard scattering models based on QCD.
Bacci, C., Bernabei, R., Ceradini, F., D'Angelo, S., Lacava, F., Moricca, M., et al. (1983). Observation of Jets in high transverse energy events at the Cern Proton Antiproton collider. PHYSICS LETTERS. SECTION B, 123(1-2), 115-122 [10.1016/0370-2693(83)90970-X].
Observation of Jets in high transverse energy events at the Cern Proton Antiproton collider
BERNABEI, RITA;D'ANGELO, SILIO;
1983-03-24
Abstract
With a segmented total absorption calorimeter of large acceptance, we have measured the total transverse energy spectrum for proton-antiproton collisions at sqrt(S)= 540 GeV up to ΣET= 130 GeV in the pseudo-rapidity range |η|< 1.5. Using two different algorithms, we have looked for localized depositions of transverse energy (jets). For ΣET > 40 GeV, the fraction of events with two jets increases with ΣET; this event structure is dominant for ΣET > 100 GeV. We measure the inclusive jet cross section up to ET(jet) = 60 GeV and the two-jets mass distribution to 120 GeV/c2. The measured cross sections are compatible with the predictions of hard scattering models based on QCD.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
