Results on the cross section for the production of electron pairs in ppBAR collisions at square-root s = 630 GeV are presented. The measured value is sigma = 405 +/- 51 (syst.) +/- 84 (syst.) pb, in the invariant mass interval 10 < m < 70 GeV. The results are compared to recent theoretical calculations which include O(alpha(s)2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable square-root tau = m/ square-root s.
STUDY OF ELECTRON PAIR PRODUCTION BELOW THE Z-MASS AT THE CERN PBARP COLLIDER / J. ALITTI, G. AMBROSINI, R. ANSARI, D. AUTIERO, P. BAREYRE, I. BERTRAM, G. BLAYLOCK, P. BONAMY, K. BORER, M. BOURLIAUD, D. BUSKULIC, G. CARBONI, D. CAVALLI, V. CAVASINNI, P. CENCI, J. CHOLLET, C. CONTA, G. COSTA, F. COSTANTINI, L. COZZI, A. CRAVERO, M. CURATOLO, A. DELLACQUA, T. DELPRETE, R. DEWOLF, L. DILELLA, Y. DUCROS, G. EGAN, K. EINSWEILER, B. ESPOSITO, L. FAYARD, A. FEDERSPIEL, R. FERRARI, M. FRATERNALI, D. FROIDEVAUX, G. FUMAGALLI, J. GAILLARD, F. GIANOTTI, O. GILDEMEISTER, C. GOSSLING, V. GOGGI, S. GRUNENDAHL, K. HARA, S. HELLMAN, J. HRIVNAC, H. HUFNAGEL, E. HUGENTOBLER, K. HULTQVIST, E. IACOPINI, J. INCANDELA, K. JAKOBS, P. JENNI, E. KLUGE, N. KURZ, S. LAMI, P. LARICCIA, M. LEFEBVRE, L. LINSSEN, M. LIVAN, P. LUBRANO, C. MAGNEVILLE, L. MANDELLI, L. MAPELLI, M. MAZZANTI, K. MEIER, B. MERKEL, J. MEYER, M. MONIEZ, R. MONING, M. MORGANTI, L. MULLER, D. MUNDAY, M. NESSI, F. NESSITEDALDI, C. ONIONS, T. PAL, M. PARKER, G. PARROUR, F. PASTORE, E. PENNACCHIO, J. PENTNEY, M. PEPE, L. PERINI, C. PETRIDOU, P. PETROFF, H. PLOTHOWBESCH, G. POLESELLO, A. POPPLETON, K. PRETZL, M. PRIMAVERA, M. PUNTURO, J. REPELLIN, A. RIMOLDI, M. SACCHI, P. SCAMPOLI, J. SCHACHER, B. SCHMIDT, V. SIMAK, S. SINGH, V. SONDERMANN, R. SPIWOKS, S. STAPNES, C. TALAMONTI, F. TONDINI, S. TOVEY, E. TSESMELIS, G. UNAL, M. VALDATANAPPI, V. VERCESI, A. WEIDBERG, P. WELLS, T. WHITE, D. WOOD, S. WOTTON, H. ZACCONE, A. ZYLBERSTEJN. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 275:1-2(1992), pp. 202-208.
STUDY OF ELECTRON PAIR PRODUCTION BELOW THE Z-MASS AT THE CERN PBARP COLLIDER
L. PERINI;
1992
Abstract
Results on the cross section for the production of electron pairs in ppBAR collisions at square-root s = 630 GeV are presented. The measured value is sigma = 405 +/- 51 (syst.) +/- 84 (syst.) pb, in the invariant mass interval 10 < m < 70 GeV. The results are compared to recent theoretical calculations which include O(alpha(s)2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable square-root tau = m/ square-root s.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
