Ratio of jet cross-sections at $\sqrt s$ = 630 GeV and 1800 GeV

Ratio of jet cross-sections at $\sqrt s$ = 630 GeV and 1800 GeV

The DO Collaboration has measured the inclusive jet cross section in proton-antiproton collisions at s**2 = 630 GeV. The results for pseudorapidities -0.5 to 0.5 are combined with our previous results at s**2 = 1800 GeV to form a ratio of cross sections with smaller uncertainties than either individ...

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Veröffentlicht in:Physical review letters 2001, Vol.86, p.2523-2528
Hauptverfasser: 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., Cho, D.K., Choi, S. K., Chopra, S., Christenson, J.H., Chung, M., Claes, D., Clark, A.R., Cochran, J., Coney, L., Connolly, B., Cooper, W.E., Coppage, D., Cutts, D., Dahl, O.I., Davis, G.A., Davis, K., De, K., Del, K., Demarteau, M., Demina, R., Demine, P., Denisov, D., Denisov, S.P., Desai, S., Diehl, H.T., Diesburg, M., Di, G., Doulas, S., Draper, P., Ducros, Y., Dudko, L.V., Duensing, S., Dugad, S.R., Dyshkant, A., Edmunds, D., Ellison, J., Elvira, V.D., Engelmann, R., Eno, S., Eppley, G., Ermolov, P., Eroshin, O.V., Estrada, J., Evans, H.
Format: Artikel
Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:The DO Collaboration has measured the inclusive jet cross section in proton-antiproton collisions at s**2 = 630 GeV. The results for pseudorapidities -0.5 to 0.5 are combined with our previous results at s**2 = 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 normalization, the dependence of the ratio on jet transverse momentum is very similar for data and theory.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.86.2523