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Ratio of jet cross sections at square root of s = 630 GeV and 1800 GeV |
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| Authors: | Abbott B Abolins M Abramov V Acharya B S Adams D L Adams M Alves G A Amos N Anderson E W Baarmand M M Babintsev V V Babukhadia L Baden A Baldin B Balm P W Banerjee S Bantly J Barberis E Baringer P Bartlett J F Bassler U Bean A Begel M Belyaev A Beri S B Bernardi G Bertram I Besson A Bezzubov V A Bhat P C Bhatnagar V Bhattacharjee M Blazey G Blessing S Boehnlein A Bojko N I Borcherding F Brandt A Breedon R Briskin G Brock R Brooijmans G Bross A Buchholz D Buehler M Buescher V Burtovoi V S Butler J M Canelli F Carvalho W Casey D Casilum Z Castilla-Valdez H Chakraborty D Chan K M Chekulaev S V |
| Affiliation: | Universidad de Buenos Aires, Argentina. |
| 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. |
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