MEASUREMENT OF GA AND GV, THE NEUTRAL CURRENT COUPLING-CONSTANTS TO LEPTONS

被引：26

作者：

ADEVA, B

ADRIANI, O

AGUILARBENITEZ, M

AKBARI, H

ALCARAZ, J

ALOISIO, A

ALVERSON, G

ALVIGGI, MG

AN, Q

ANDERHUB, H

ANDERSSON, AL

ANDREEV, VP

ANGELOV, T

ANTONOV, L

ANTREASYAN, D

AREFIEV, A

AUROY, B

AZEMOON, T

AZIZ, T

BABA, PVKS

BAGNAIA, P

BAKKEN, JA

BAKSAY, L

BALL, RC

BANERJEE, S

BAO, J

BARONE, L

BAY, A

BECKER, U

BEINGESSNER, S

BENCZE, GL

BERDUGO, J

BERGES, P

BERTUCCI, B

BETEV, BL

BILAND, A

BIZZARRI, R

BLAISING, JJ

BLOMEKE, P

BLUMENFELD, B

BOBBINK, GJ

BOCCIOLINI, M

BOHLEN, W

BOHM, A

BOHRINGER, T

BORGIA, B

BOURILKOV, D

BOURQUIN, M

BOUTIGNY, D

BRANSON, JG

机构：

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

[2] IST NAZL FIS NUCL, FLORENCE, ITALY

[3] CTR INVEST ENERGET MEDIOAMBIENTALES & TECNOL, MADRID, SPAIN

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

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

[6] IST NAZL FIS NUCL, NAPLES, ITALY

[7] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

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

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

[10] MIT, CAMBRIDGE, MA 02139 USA

[11] LENINGRAD NUCL PHYS INST, GATCHINA 188350, USSR

[12] CLANP, CENT LAB AUTOMAT & INSTRUMENTAT, SOFIA, BULGARIA

[13] IST NAZL FIS NUCL, I-40126 BOLOGONA, ITALY

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

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

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

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

[18] NATL INST NUCL PHYS, ROME, ITALY

[19] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[20] UNION UNIV UNION COLL, SCHENECTADY, NY 12308 USA

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

[22] LAB PHYS PARTICULES, F-74019 ANNECY LE VIEUX, FRANCE

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

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

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

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

[27] NATL INST KERNFYS & HOGE ENERGIEFYS H, 6525 ED NIJMEGEN, NETHERLANDS

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

[29] PAUL SCHERRER INST, WURENLINGEN, SWITZERLAND

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

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

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

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

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

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

[36] HIGH ENERGY PHYS INST, O-1615 BERLIN, GERMANY

[37] CALTECH, PASADENA, CA 91125 USA

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

[39] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

来源：

PHYSICS LETTERS B | 1990年 / 236卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0370-2693(90)90603-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured both the rates and the forward-backward asymmetry of ℓ+ℓ- from Z0→ℓ+ℓ- (where ℓ=μ, τ) with the L3 detector. We obtained Γℓℓ=88±4±3 MeV and the vector neutral current coupling constant, gv=0.00±0.07 and the axial vector neutral current coupling constant, gA=-0.515±0.015. © 1990.

引用

页码：109 / 115

页数：7

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