Measurement and interpretation of the W-pair cross-section in e(+)e(-) interactions at 161 GeV

被引：76

作者：

Abreu, P

Adam, W

Adye, T

Adzic, P

Ajinenko, I

Alekseev, GD

Alemany, R

Allport, PP

Almehed, S

Amaldi, U

Amato, S

Andreazza, A

Andrieux, ML

Antilogus, P

Apel, WD

Asman, B

Augustin, JE

Augustinus, A

Baillon, P

Bambade, P

Barao, F

Barbi, M

Bardin, DY

Barker, G

Baroncelli, A

Barring, O

Barrio, JA

Bartl, W

Bates, MJ

Battaglia, M

Baubillier, M

Baudot, J

Becks, KH

Begalli, M

Beilliere, P

Belokopytov, Y

Belous, K

Benvenuti, AC

Berggren, M

Bertini, D

Bertrand, D

Besancon, M

Bianchi, F

Bigi, M

Bilenky, MS

Billoir, P

Bizouard, MA

Bloch, D

Blume, M

Bolognese, T

机构：

[1] UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM

[2] ULB VUB,IIHE,B-1050 BRUSSELS,BELGIUM

[3] UNIV MONS,FAC SCI,B-7000 MONS,BELGIUM

[4] UNIV ATHENS,PHYS LAB,GR-10680 ATHENS,GREECE

[5] UNIV BERGEN,DEPT PHYS,N-5007 BERGEN,NORWAY

[6] UNIV BOLOGNA,DIPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

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

[8] CTR BRASILEIRO PESQUISAS FIS,BR-22290 RIO JANEIRO,BRAZIL

[9] PONTIFICIA UNIV CATOLICA RIO DE JANEIRO,DEPT FIS,BR-22453 RIO JANEIRO,BRAZIL

[10] UNIV ESTADUAL RIO DE JANEIRO,INST FIS,RIO JANEIRO,BRAZIL

[11] COMENIUS UNIV BRATISLAVA,FAC MATH & PHYS,SK-84215 BRATISLAVA,SLOVAKIA

[12] CNRS,IN2P3,PHYS CORPUSCULAIRE LAB,COLL FRANCE,F-75231 PARIS 05,FRANCE

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

[14] CTR RECH NUCL,IN2P3,CNRS,ULP,F-67037 STRASBOURG,FRANCE

[15] NATL CTR SCI RES DEMOKRITOS,INST NUCL PHYS,GR-15310 ATHENS,GREECE

[16] FZU,INST PHYS,CAS,DIV HIGH ENERGY PHYS,PRAGUE 18040 8,CZECH REPUBLIC

[17] UNIV GENOA,DIPARTIMENTO FIS,I-16146 GENOA,ITALY

[18] IST NAZL FIS NUCL,I-16146 GENOA,ITALY

[19] UNIV GRENOBLE 1,CNRS,IN2P3,INST SCI NUCL,F-38026 GRENOBLE,FRANCE

[20] HIP,HELSINKI INST PHYS,FIN-00014 HELSINKI,FINLAND

[21] JOINT INST NUCL RES DUBNA,HEAD POST OFF,MOSCOW 101000,RUSSIA

[22] UNIV KARLSRUHE,INST EXPT KERNPHYS,D-76128 KARLSRUHE,GERMANY

[23] INST NUCL PHYS,PL-30055 KRAKOW,POLAND

[24] UNIV MIN & MET KRAKOW,PL-30055 KRAKOW,POLAND

[25] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,CNRS,IN2P3,F-91405 ORSAY,FRANCE

[26] UNIV LANCASTER,SCH CHEM & PHYS,LANCASTER LA1 4YB,ENGLAND

[27] LIP,IST,FCUL,P-1000 LISBON,PORTUGAL

[28] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

[29] UNIV PARIS 06,CNRS,IN2P3,LPNHE,F-75252 PARIS 05,FRANCE

[30] UNIV PARIS 07,F-75252 PARIS 05,FRANCE

[31] LUND UNIV,DEPT PHYS,S-22363 LUND,SWEDEN

[32] UNIV LYON 1,CNRS,IPNL,IN2P3,F-69622 VILLEURBANNE,FRANCE

[33] UNIV COMPLUTENSE,E-28040 MADRID,SPAIN

[34] UNIV AIX MARSEILLE 2,CPP,IN2P3,CNRS,F-13288 MARSEILLE 09,FRANCE

[35] UNIV MILAN,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[36] IST NAZL FIS NUCL,I-20133 MILAN,ITALY

[37] NIELS BOHR INST,DK-2100 COPENHAGEN 0,DENMARK

[38] CHARLES UNIV,NC,NUCL CTR MFF,CR-18000 PRAGUE 8,CZECH REPUBLIC

[39] NIKHEF H,NL-1009 DB AMSTERDAM,NETHERLANDS

[40] NATL TECH UNIV ATHENS,DEPT PHYS,GR-15773 ATHENS,GREECE

[41] UNIV OSLO,DEPT PHYS,N-1000 OSLO 3,NORWAY

[42] UNIV OVIEDO,DEPT FIS,E-33007 OVIEDO,SPAIN

[43] UNIV OXFORD,DEPT PHYS,OXFORD OX1 3RH,ENGLAND

[44] UNIV PADUA,DIPARTIMENTO FIS,I-35131 PADUA,ITALY

[45] IST NAZL FIS NUCL,I-35131 PADUA,ITALY

[46] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[47] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[48] IST NAZL FIS NUCL,TOR VERGATA,I-00173 ROME,ITALY

[49] CEA SACLAY,DAPNIA,SERV PHYS PARTICULES,CE SACLAY,F-91191 GIF SUR YVETTE,FRANCE

[50] IST NAZL FIS NUCL,IST SUPER SANITA,I-00161 ROME,ITALY

来源：

PHYSICS LETTERS B | 1997年 / 397卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(97)00226-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In 1996 LEP ran at a centre-of-mass energy of 161 GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of 9.93 pb(-1), and observed 29 events that are considered as candidates for W-pair production. From these, a cross-section for the doubly resonant e(+)e(-) --> WW process of 3.67(-0.85)(+0.97)+/-0.19 pb has been measured. Within the Standard Model, this cross-section corresponds to a mass of the W-boson of 80.40+/-0.44(stat.)+/-0.09(syst.)+/-0.03(LEP) GeV/c(2). Alternatively, if mw is held fixed at its current value determined by other experiments, the observed cross-section is used to obtain limits on trilinear WWV(V = gamma,Z) couplings. (C) 1997 Elsevier Science B.V.

引用

页码：158 / 170

页数：13

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