Ratios of multijet cross sections in pp̄ collisions at √s= 1.8 TeV
Physical Review Letters 86:10 (2001) 1955-1960
Abstract:
We report on a study of the ratio of inclusive three-jet to inclusive two-jet production cross sections as a function of total transverse energy in pp̄ collisions at a center-of-mass energy √s = 1.8 TeV, using data collected with the DO detector during the 1992-1993 run of the Fermilab Tevatron Collider. The measurements are used to deduce preferred renormalization scales in perturbative script O (αs3) QCD calculations in modeling soft-jet emission. © 2001 The American Physical Society.Ratio of jet cross sections at square root of s = 630 GeV and 1800 GeV.
Physical review letters 86:12 (2001) 2523-2528
Abstract:
The D0 Collaboration has measured the inclusive jet cross section in barpp collisions at square root of s = 630 GeV. The results for pseudorapidities (eta)<0.5 are combined with our previous results at square root of s = 1800 GeV to form a ratio of cross sections with smaller uncertainties than either individual measurement. Next-to-leading-order QCD predictions show excellent agreement with the measurement at 630 GeV; agreement is also satisfactory for the ratio. Specifically, despite a 10% to 15% difference in the absolute magnitude, the dependence of the ratio on jet transverse momentum is very similar for data and theory.Inclusive jet production in pp̄ collisions
Physical Review Letters 86:9 (2001) 1707-1712
Abstract:
A new measurement of the pseudorapidity (η) and transverse-energy (ET) dependence of the inclusive jet production cross section was carried out. The differential cross section d2σ/(dETdη) was considered as a function of jet ET in five intervals of up to |η| = 3. Results were compared with next-to-leading order predictions from QCD.Search for large extra dimensions in dielectron and diphoton production
Physical Review Letters 86:7 (2001) 1156-1161
Abstract:
The search for large extra spatial dimensions at hadron colliders was performed by looking for effects of virtual Kaluza-Klein gravitons in the production of dielectrons and diphotons at high energies. No evidence was found for large extra dimension (ED). A model-independent 95% C.L. upper limit of 0.46 TeV-4 was set on the parameter nG.Quasi-model-independent search for new physics at large transverse momentum
Physical Review D - Particles, Fields, Gravitation and Cosmology 64:1 (2001)