Measurements of mass, width and gauge couplings of the W boson at LEP

被引:43
作者
Acciarri, M
Adriani, O
AguilarBenitez, M
Ahlen, S
Alcaraz, J
Alemanni, G
Allaby, J
Aloisio, A
Alverson, G
Alviggi, MG
Ambrosi, G
Anderhub, H
Andreev, VP
Angelescu, T
Anselmo, F
Arefiev, A
Azemoon, T
Aziz, T
Bagnaia, P
Baksay, L
Banerjee, S
Banerjee, S
Banicz, K
Barczyk, A
Barillere, R
Barone, L
Bartalini, P
Baschirotto, A
Basile, M
Battiston, R
Bay, A
Becattini, F
Becker, U
Behner, F
Berdugo, J
Berges, P
Bertucci, B
Betev, BL
Bhattacharya, S
Biasini, M
Biland, A
Bilei, GM
Blaising, JJ
Blyth, SC
Bobbink, GJ
Bock, R
Bohm, A
Boldizsar, L
Borgia, B
Bourilkov, D
机构
[1] RHEIN WESTFAL TH AACHEN, INST PHYS 1, D-52056 AACHEN, GERMANY
[2] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY
[3] NIKHEF H, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS
[4] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS
[5] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA
[6] IN2P3, LAPP, LAB ANNECY LE VIEUX PHYS PARTICULES, CNRS, F-74941 ANNECY LE VIEUX, FRANCE
[7] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA
[8] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND
[9] LOUISIANA STATE UNIV, BATON ROUGE, LA 70803 USA
[10] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA
[11] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY
[12] UNIV BOLOGNA, I-40126 BOLOGNA, ITALY
[13] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY
[14] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA
[15] BOSTON UNIV, BOSTON, MA 02215 USA
[16] NORTHEASTERN UNIV, BOSTON, MA 02115 USA
[17] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA
[18] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA
[19] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY
[20] HARVARD UNIV, CAMBRIDGE, MA 02139 USA
[21] MIT, CAMBRIDGE, MA 02139 USA
[22] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY
[23] UNIV FLORENCE, I-50125 FLORENCE, ITALY
[24] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND
[25] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA 23, SWITZERLAND
[26] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND
[27] UNIV SCI & TECHNOL CHINA, HEFEI 230029, ANHUI, PEOPLES R CHINA
[28] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND
[29] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND
[30] IST NAZL FIS NUCL, I-73100 LECCE, ITALY
[31] UNIV LECCE, I-73100 LECCE, ITALY
[32] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA
[33] UNIV LYON 1, IN2P3, INST PHYS NUCL LYON, CNRS, F-69622 VILLEURBANNE, FRANCE
[34] CIEMAT, E-28040 MADRID, SPAIN
[35] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA
[36] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY
[37] UNIV NAPLES, I-80125 NAPLES, ITALY
[38] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS
[39] CATHOLIC UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS
[40] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS
[41] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA
[42] CALTECH, PASADENA, CA 91125 USA
[43] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY
[44] UNIV PERUGIA, I-06100 PERUGIA, ITALY
[45] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA
[46] PRINCETON UNIV, PRINCETON, NJ 08544 USA
[47] IST NAZL FIS NUCL, I-00185 ROME, ITALY
[48] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY
[49] RUSSIAN ACAD SCI, INST NUCL PHYS, ST PETERSBURG, RUSSIA
[50] UNIV SALERNO, I-84100 SALERNO, ITALY
基金
中国国家自然科学基金; 匈牙利科学研究基金会;
关键词
D O I
10.1016/S0370-2693(97)01082-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on measurements of mass and total decay width of the W boson and of triple-gauge-boson couplings, gamma WW and AWW, with the L3 detector at LEP. W-pair events produced in e(+)e(-) interactions between 161GeV and 172GeV centre-of-mass energy are selected in a data sample corresponding to a total luminosity of 21.2 pb(-1). The mass and total decay width of the W boson are determined to be M-W = 80.75(-0.27)(+0.26) (LEP) GeV and Gamma(W) = 1.74(-0.78)(+0.88)(stat.) +/- 0.25(syst.)GeV, respectively. Limits on anomalous triple-gauge-boson couplings, gamma WW and ZWW, are determined, in particular -1.5 < delta(Z) < 1.9 (95% CL), excluding vanishing ZWW coupling at more than 958 confidence level. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:176 / 190
页数:15
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