STUDY OF ELECTRON PAIR PRODUCTION BELOW THE Z-MASS AT THE CERN PBARP COLLIDER

被引：5

作者：

ALITTI, J

AMBROSINI, G

ANSARI, R

AUTIERO, D

BAREYRE, P

BERTRAM, IA

BLAYLOCK, G

BONAMY, P

BORER, K

BOURLIAUD, M

BUSKULIC, D

CARBONI, G

CAVALLI, D

CAVASINNI, V

CENCI, P

CHOLLET, JC

CONTA, C

COSTA, G

COSTANTINI, F

COZZI, L

CRAVERO, A

CURATOLO, M

DELLACQUA, A

DELPRETE, T

DEWOLF, RS

DILELLA, L

DUCROS, Y

EGAN, GF

EINSWEILER, KF

ESPOSITO, B

FAYARD, L

FEDERSPIEL, A

FERRARI, R

FRATERNALI, M

FROIDEVAUX, D

FUMAGALLI, G

GAILLARD, JM

GIANOTTI, F

GILDEMEISTER, O

GOSSLING, C

GOGGI, VG

GRUNENDAHL, S

HARA, K

HELLMAN, S

HRIVNAC, J

HUFNAGEL, H

HUGENTOBLER, E

HULTQVIST, K

IACOPINI, E

INCANDELA, J

机构：

[1] UNIV PAVIA,DIPARTIMENTO FIS NUCL & TEOR,I-27100 PAVIA,ITALY

[2] IST NAZL FIS NUCL,SEZ PAVIA,I-27100 PAVIA,ITALY

[3] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,F-91405 ORSAY,FRANCE

[4] SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY

[5] UNIV PISA,DIPARTMENTO FIS,I-56100 PISA,ITALY

[6] IST NAZL FIS NUCL,SEZ PISA,I-56100 PISA,ITALY

[7] UNIV MELBOURNE,SCH PHYS,PARKVILLE,VIC 3052,AUSTRALIA

[8] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

[9] UNIV DORTMUND,LEHRSTUHL EXPTL PHYS 4,W-4600 DORTMUND,GERMANY

[10] UNIV HEIDELBERG,INST HOCHENERGIEPHYS,W-6900 HEIDELBERG,GERMANY

[11] CERN,CH-1211 GENEVA 23,SWITZERLAND

[12] UNIV BERN,HOCHENERGIEPHYS LAB,CH-3012 BERN,SWITZERLAND

[13] UNIV MILANO,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[14] IST NAZL FIS NUCL,SEZ MILANO,I-20133 MILAN,ITALY

[15] UNIV PERUGIA,DIPARTMENTO FIS,I-06100 PERUGIA,ITALY

[16] IST NAZL FIS NUCL,SEZ PERUGIA,I-06100 PERUGIA,ITALY

来源：

PHYSICS LETTERS B | 1992年 / 275卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/0370-2693(92)90876-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：202 / 208

页数：7

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