Measurement of W-pair cross sections in e(+)e(-) interactions at root s=172 GeV and W-decay branching fractions

被引：15

作者：

Acciarri, M ^{[1
]}

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

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 3, D-52056 AACHEN, GERMANY

[2] NATL INST NUCL & HIGH ENERGY PHYS, NIKHEF H, NL-1009 DB AMSTERDAM, NETHERLANDS

[3] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS

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

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

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

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

[8] LAB ANNECY LE VIEUX PHYS PARTICULES, LAPP, CNRS, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE

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

[10] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND

[11] LOUISIANA STATE UNIV, BATON ROUGE, LA 70803 USA

[12] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA

[13] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY

[14] UNIV BOLOGNA, I-40126 BOLOGNA, ITALY

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

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

[17] BOSTON UNIV, BOSTON, MA 02215 USA

[18] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[19] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA

[20] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA

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

[22] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[23] MIT, CAMBRIDGE, MA 02139 USA

[24] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

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

[26] CHINESE UNIV SCI & TECHNOL, USTC, HEFEI 230029, ANHUI, PEOPLES R CHINA

[27] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND

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

[29] IST NAZL FIS NUCL, I-73100 LECCE, ITALY

[30] UNIV LECCE, I-73100 LECCE, ITALY

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

[32] UNIV LYON 1, CNRS, IN2P3, INST PHYS NUCL LYON, F-69622 VILLEURBANNE, FRANCE

[33] CIEMAT, E-28040 MADRID, SPAIN

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

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

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

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

[45] PRINCETON UNIV, PRINCETON, NJ 08544 USA

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

[47] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY

[48] RUSSIAN ACAD SCI, INST NUCL PHYS, ST PETERSBURG, RUSSIA

[49] UNIV SALERNO, I-84100 SALERNO, ITALY

[50] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY

来源：

PHYSICS LETTERS B | 1997年 / 407卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)00802-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the measurement of W-boson pair-production with the L3 detector at LEP at an average centre-of-mass energy of 172.13 GeV. In a data sample corresponding to a total luminosity of 10.25 pb(-1) we select 110 four-fermion events with pairs of hadronic jets or leptons with high invariant masses. Branching fractions of W decays into different fermion-antifermion pairs are determined with and without the assumption of charged-current lepton universality. The branching fraction for hadronic W decays is measured to be: B(W --> hadrons) = 64.2(-3.8)(+3.7) (stat.) +/- 0.5 (syst.) %. Combining all final states the total cross section for W-pair production is measured to be: sigma(ww) = 12.27(-1.32)(+1.41) (stat.) +/- 0.23 (syst.) pb. The results are in good agreement with the Standard Model. (C) 1997 Elsevier Science B.V.

引用

页码：419 / 431

页数：13

共 54 条

[1] Nuclear shell model by the quantum Monte Carlo diagonalization method [J].

Honma, M ;

Mizusaki, T ;

Otsuka, T .

PHYSICAL REVIEW LETTERS, 1996, 77 (16) :3315-3318

[2] NEW PI(+) LIFETIME MEASUREMENT [J].

NUMAO, T ;

MACDONALD, JA ;

MARSHALL, JA ;

MARSHALL, GM ;

OLIN, A .

PHYSICAL REVIEW D, 1995, 52 (09) :4855-4859

[3] NEW CONSTRAINTS ON R-PARITY-BROKEN SUPERSYMMETRY FROM NEUTRINOLESS DOUBLE-BETA DECAY [J].

HIRSCH, M ;

KLAPDORKLEINGROTHAUS, HV ;

KOVALENKO, SG .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :17-20

[4] MEASUREMENT OF THE W-BOSON MASS IN 1.8-TEV PBARP COLLISIONS [J].

ABE, F .

PHYSICAL REVIEW D, 1991, 43 (07) :2070-2093

[5] MEASUREMENT OF THE W-BOSON MASS [J].

ABE, F ;

AMIDEI, D ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

BADEN, AR ;

BAMBERGER, A ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BHADRA, S ;

BINKLEY, M ;

BLAIR, R ;

BLOCKER, C ;

BOOTH, AW ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEY, E ;

BYON, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CAREY, R ;

CARITHERS, W ;

CARLSMITH, D ;

CARROLL, JT ;

CASHMORE, R ;

CERVELLI, F ;

CHADWICK, K ;

CHIARELLI, G ;

CHINOWSKY, W ;

CIHANGIR, S ;

CLARK, AG ;

CONNOR, D ;

CONTRERAS, M ;

COOPER, J ;

CORDELLI, M ;

CRANE, D ;

CURATOLO, M ;

DAY, C ;

DELLAGNELLO, S ;

DELLORSO, M .

PHYSICAL REVIEW LETTERS, 1990, 65 (18) :2243-2246

[6] Measurement and interpretation of the W-pair cross-section in e(+)e(-) interactions at 161 GeV [J].

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 .

PHYSICS LETTERS B, 1997, 397 (1-2) :158-170

[7] MEASUREMENT OF CROSS-SECTIONS AND LEPTONIC FORWARD-BACKWARD ASYMMETRIES AT THE Z-POLE AND DETERMINATION OF ELECTROWEAK PARAMETERS [J].

ACCIARRI, M ;

ADAM, A ;

ADRIANI, O ;

AGUILARBENITEZ, M ;

AHLEN, S ;

ALCARAZ, J ;

ALOISIO, A ;

ALVERSON, G ;

ALVIGGI, MG ;

AMBROSI, G ;

AN, Q ;

ANDERHUB, H ;

ANDERSON, AL ;

ANDREEV, VP ;

ANGELESCU, T ;

ANTONOV, L ;

ANTREASYAN, D ;

ALKHAZOV, G ;

ARCE, P ;

AREFIEV, A ;

AZEMOON, T ;

AZIZ, T ;

BABA, PVKS ;

BAGNAIA, P ;

BAKKEN, JA ;

BAKSAY, L ;

BALL, RC ;

BANERJEE, S ;

BANICZ, K ;

BAO, J ;

BARILLERE, R ;

BARONE, L ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAY, A ;

BECATTINI, F ;

BECKER, U ;

BEHNER, F ;

BENCZE, GL ;

BERDUGO, J ;

BERGES, P ;

BERTUCCI, B ;

BETEV, BL ;

BIASINI, M ;

BILAND, A ;

BILEI, GM ;

BIZZARRI, R ;

BLAISING, JJ ;

BOBBINK, GJ ;

BOCK, R .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 62 (04) :551-573

[8] THE L3 SILICON MICROVERTEX DETECTOR [J].

ACCIARRI, M ;

ADAM, A ;

ADRIANI, O ;

AHLEN, S ;

ALCARAZ, J ;

AMBROSI, G ;

BABUCCI, E ;

BAKSAY, L ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAUR, W ;

BAY, A ;

BENCZE, GL ;

BERTUCCI, B ;

BIASINI, M ;

BILEI, GM ;

BOBBINK, GJ ;

BOISSEVAIN, JG ;

BOSETTI, M ;

BROOKS, ML ;

BURGER, WJ ;

BUSENITZ, J ;

CAMPS, C ;

CARIA, M ;

CASTELLINI, G ;

CASTELLO, R ;

CHECCUCCL, B ;

CHEN, A ;

COAN, TE ;

COMMICHAU, V ;

DIBITONTO, D ;

DING, J ;

DUINKER, P ;

DJAMBAZOV, L ;

EASO, S ;

EXTERMANN, P ;

FIANDRINI, E ;

GABBANINI, A ;

GOLDSTEIN, J ;

GOUGAS, A ;

HANGARTER, K ;

HAUVILLER, C ;

HERVE, A ;

HOFER, M ;

HOFER, T ;

HOU, S ;

JOSA, MI ;

KAPUSTINSKY, JS ;

KIM, D ;

KINNISON, WW .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 351 (2-3) :300-312

[9] Pair-production of W bosons in e(+)e(-) interactions at root s=161 GeV [J].

Acciarri, M ;

Adriani, O ;

AguilarBenitez, M ;

Ahlen, S ;

Alpat, B ;

Alcaraz, J ;

Alemanni, G ;

Allaby, J ;

Aloisio, A ;

Alverson, G ;

Alviggi, MG ;

Ambrosi, G ;

Anderhub, H ;

Andreev, VP ;

Angelescu, T ;

Anselmo, F ;

Antreasyan, D ;

Arefiev, A ;

Azemoon, T ;

Aziz, T ;

Bagnaia, P ;

Baksay, L ;

Banerjee, S ;

Banicz, K ;

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 ;

Borgia, B ;

Bourilkov, D ;

Bourquin, M .

PHYSICS LETTERS B, 1997, 398 (1-2) :223-238

[10]

ACCIARRI M, CERNPPE9752

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