A TEST OF QUANTUM ELECTRODYNAMICS IN THE REACTION E+E- -]GAMMA-GAMMA(GAMMA)

被引：21

作者：

ADRIANI, O

AGUILARBENITEZ, M

AHLEN, S

AKBARI, H

ALCARAZ, J

ALOISIO, A

ALVERSON, G

ALVIGGI, MG

AMBROSI, G

AN, Q

ANDERHUB, H

ANDERSON, AL

ANDREEV, VP

ANGELOV, T

ANTONOV, L

ANTREASYAN, D

ARCE, P

AREFIEV, A

ATAMANCHUK, A

AZEMOON, T

AZIZ, T

BABA, PVKS

BAGNAIA, P

BAKKEN, JA

BAKSAY, L

BALL, RC

BANERJEE, S

BAO, J

BARILLERE, R

BARONE, L

BATTISTON, R

BAY, A

BECATTINI, F

BECKER, U

BEHNER, F

BEHRENS, J

BEINGESSNER, S

BENCZE, GL

BERDUGO, J

BERGES, P

BERTUCCI, B

BETEV, BL

BIASINI, M

BILAND, A

BILEI, GM

BIZZARRI, R

BLAISING, JJ

BLUMENFELD, B

BOBBINK, GJ

BOCCIOLINI, M

机构：

[1] UNIV FLORENCE, I-50125 FLORENCE, ITALY

[2] CTR INVEST ENERGET MEDIOAMBIENTALES & TECHNOL, E-28040 MADRID, SPAIN

[3] BOSTON UNIV, BOSTON, MA 02215 USA

[4] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA

[5] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[6] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY

[7] NAPLES UNIV, I-80125 NAPLES, ITALY

[8] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

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

[10] UNIV PERUGIA, I-06100 PERUGIA, ITALY

[11] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA 23, SWITZERLAND

[12] SWISS FED INST TECHNOL, CH-8093 ZURICH, SWITZERLAND

[13] MIT, CAMBRIDGE, MA 02139 USA

[14] ST PETERSBURG NUCL PHYS INST, ST PETERSBURG, USSR

[15] BULGARIAN ACAD SCI, INST MECHATRON, BU-1113 SOFIA, BULGARIA

[16] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[17] MOSCOW THEORET & EXPTL PHYS INST, 117259 MOSCOW, USSR

[18] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA

[19] TATA INST FUNDAMENTAL RES, BOMBAY 400005, INDIA

[20] RHEIN WESTFAL TH AACHEN, INST PHYS 1, W-5100 AACHEN, GERMANY

[21] RHEIN WESTFAL TH AACHEN, INST PHYS 3, W-5100 AACHEN, GERMANY

[22] IST NAZL FIS NUCL, I-00185 ROME, ITALY

[23] UNIV ROME LA SAPIENZA, I-00185 ROME, ITALY

[24] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[25] UNIV ALABAMA, TUSCALOOSA, AL 35486 USA

[26] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND

[27] LAB PHYS PARTICULES, F-74941 ANNECY LE VIEUX, FRANCE

[28] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY

[29] NATL INST HIGH ENERGY PHYS, 1009 DB AMSTERDAM, NETHERLANDS

[30] CATHOLIC UNIV NIJMEGEN, 6525 ED NIJMEGEN, NETHERLANDS

[31] NATL INST PHYS & HIGH ENERGY PHYS, 6525 ED NIJMEGEN, NETHERLANDS

[32] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92182 USA

[33] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA

[34] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA

[35] UNIV LYON 1, INST PHYS NUCL LYON, INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, F-69622 VILLEURBANNE, FRANCE

[36] PURDUE UNIV, W LAFAYETTE, IN 47907 USA

[37] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

[38] INST HIGH ENERGY PHYS, BEIJING, PEOPLES R CHINA

[39] CHINESE UNIV SCI & TECHNOL, HEFEI 230029, PEOPLES R CHINA

[40] OAK RIDGE NATL LAB, OAK RIDGE, TN 37830 USA

[41] PAUL SCHERRER INST, CH-5232 VILLIGEN, SWITZERLAND

[42] SHANGHAI INST CERAM, SHANGHAI, PEOPLES R CHINA

[43] DESY, INST HOCHENERGIEPHYS, O-1615 ZEUTHEN, GERMANY

[44] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND

[45] CALTECH, PASADENA, CA 91125 USA

[46] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[47] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS

[48] UNIV HAMBURG, W-2000 HAMBURG 13, GERMANY

来源：

PHYSICS LETTERS B | 1992年 / 288卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)91120-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured the total and differential cross sections of the reaction e+ e- --> gamma-gamma(gamma) at center-of-mass energies around 91 GeV, with an integrated luminosity of 14.2 pb-1. The results are in good agreement with QED predictions. We set lower limits, at 95% confidence level, on the QED cutoff parameters of LAMBDA+ > 139 GeV, LAMBDA- > 108 GeV and on the mass of an excited electron of m(e*) > 127 GeV. We searched for Z0 rare decays with photonic signatures in the final state. Upper limits, at 95% confidence level, for the branching ratio of ZO decaying into pi-0-gamma/gamma-gamma, eta-gamma and gamma-gamma-gamma are 1.2 x 10(-4), 1.8 x 10(-4), 3.3 x 10(-5) respectively.

引用

页码：404 / 411

页数：8

共 20 条

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