Measurement of B(b)over-bar Correlations At the Cern P(p)over-bar Collider

Albajar, C.; Ankoviak, K.; Bartha, S.; Bezaguet, A.; Bohrer, A.; Bos, K.; Buchanan, C.; Buschbeck, B.; Castillavaldez, H.; Cennini, P.; Cittolin, S.; Clayton, E.; Cline, D.; Caughlan, J. A.; Dau, D.; Daum, C.; Dellanegra, M.; Demoulin, M.; Denegri, D.; Dibon, H.; Dorenbosch, J.; Dowell, J. D.; Eggert, K.; Eisenhandler, E.; Ellis, N.; Evans, H.; Faissner, H.; Fensome, I. F.; Fortson, L.; Garvey, J.; Geiser, A.; Givernaud, A.; Gonidec, A.; Gonzalez, B.; Gronberg, J.; Holthuizen, D. J.; Jank, W.; Jorat, G.; P. I. P.,; Karimaki, V.; Kenyon, I.; Kinnunen, R.; Krammer, M.; Lammel, S.; M. P. J.,; Lemoigne, Y.; Levegrun, S.; Lipa, P.; Markou, C.; Markytan, M.; Maurin, G.; Mcmahon, S.; Merlo, J. P.; Meyer, T.; Moers, T.; Mohammadi, M.; Morsch, A.; Moulin, A.; Norton, A.; Otwinowski, S.; Pancheri, G.; Pietarinen, E.; Pimia, M.; Placci, A.; Porte, J. P.; Priem, R.; Prosi, R.; Radermacher, E.; Rauschkolb, M.; Reithler, H.; Revol, J. P.; Robinson, D.; Rubbia, C.; Samyn, D.; Schinzel, D.; Schleichert, R.; Schroder, M.; Seez, C.; Shah, T. P.; Sphicas, P.; Sumorok, K.; Szoncso, F.; Tan, C. H.; Taurok, A.; Taylor, L.; Tether, S.; Teykal, H.; Thompson, G.; Tuchscherer, H.; Tuominiemi, J.; Vandeguchte, W.; Vandijk, A.; Vargas, M.; Virdee, T. S.; Vonschlippe, W.; Vuillemin, V.; Wacker, K.; Wagner, H.; Walzel, G.; Wulz, C. E.; Zotto, Pierluigi

We report on measurements of correlated bbBAR production in ppBAR collisions at square-root s = 630 GeV, using dimuon data to tag both the b and bBAR quarks. Starting from an inclusive dimuon sample we obtain improved cross-sections for single inclusive beauty production and confirm our earlier results on B0-B0BAR mixing. From a study of bbBAR correlations we derive explicit cross-sections for semi-differential bbBAR production. We compare the measured cross-sections and correlations to O(alpha(s)3) QCD predictions and find good quantitative agreement. From the measured angular distributions we establish a sizeable contribution from higher order QCD processes with a significance of about seven standard deviations. A large nonperturbative contribution to these higher order corrections is excluded.