OBSERVATION OF THE TOP-QUARK

被引：1014

作者：

ABACHI, S

ABBOTT, B

ABOLINS, M

ACHARYA, BS

ADAM, I

ADAMS, DL

ADAMS, M

AHN, S

AIHARA, H

ALITTI, J

ALVAREZ, G

ALVES, GA

AMIDI, E

AMOS, N

ANDERSON, EW

ARONSON, SH

ASTUR, R

AVERY, RE

BADEN, A

BALAMURALI, V

BALDERSTON, J

BALDIN, B

BANTLY, J

BARTLETT, JF

BAZIZI, K

BENDICH, J

BERI, SB

BERTRAM, I

BEZZUBOV, VA

BHAT, PC

BHATNAGAR, V

BHATTACHARJEE, M

BISCHOFF, A

BISWAS, N

BLAZEY, G

BLESSING, S

BOEHNLEIN, A

BOJKO, NI

BORCHERDING, F

BORDERS, J

BOSWELL, C

BRANDT, A

BROCK, R

BROSS, A

BUCHHOLZ, D

BURTOVOI, VS

BUTLER, JM

CASEY, D

CASTILLAVALDEZ, H

CHAKRABORTY, D

机构：

[1] UNIV LOS ANDES,BOGOTA,COLOMBIA

[2] UNIV ARIZONA,TUCSON,AZ 85721

[3] BROOKHAVEN NATL LAB,UPTON,NY 11973

[4] BROWN UNIV,PROVIDENCE,RI 02912

[5] UNIV CALIF DAVIS,DAVIS,CA 95616

[6] UNIV CALIF IRVINE,IRVINE,CA 92717

[7] UNIV CALIF RIVERSIDE,RIVERSIDE,CA 92521

[8] CTR BRASILEIRO PESQUISAS FIS,LAFEX,RIO JANEIRO,BRAZIL

[9] CTR INVEST & ESTUD AVANZADOS,MEXICO CITY,DF,MEXICO

[10] COLUMBIA UNIV,NEW YORK,NY 10027

[11] UNIV DELHI,DELHI 110007,INDIA

[12] FLORIDA STATE UNIV,TALLAHASSEE,FL 32306

[13] UNIV HAWAII,HONOLULU,HI 96822

[14] UNIV ILLINOIS,CHICAGO,IL 60680

[15] INDIANA UNIV,BLOOMINGTON,IN 47405

[16] IOWA STATE UNIV SCI & TECHNOL,AMES,IA 50011

[17] KOREA UNIV,SEOUL 136701,SOUTH KOREA

[18] KYUNGSUNG UNIV,PUSAN,SOUTH KOREA

[19] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[20] UNIV MARYLAND,COLLEGE PK,MD 20742

[21] UNIV MICHIGAN,ANN ARBOR,MI 48109

[22] MICHIGAN STATE UNIV,E LANSING,MI 48824

[23] MOSCOW MV LOMONOSOV STATE UNIV,MOSCOW,RUSSIA

[24] UNIV NEBRASKA,LINCOLN,NE 68588

[25] NYU,NEW YORK,NY 10003

[26] NORTHEASTERN UNIV,BOSTON,MA 02115

[27] NO ILLINOIS UNIV,DE KALB,IL 60115

[28] NORTHWESTERN UNIV,EVANSTON,IL 60208

[29] UNIV NOTRE DAME,NOTRE DAME,IN 46556

[30] UNIV PANJAB,CHANDIGARH 160014,INDIA

[31] INST HIGH ENERGY PHYS,PROTVINO 142284,RUSSIA

[32] PURDUE UNIV,W LAFAYETTE,IN 47907

[33] RICE UNIV,HOUSTON,TX 77251

[34] UNIV ROCHESTER,ROCHESTER,NY 14627

[35] CTR ETUD SACLAY,SERV PHYS PARTICULES,DAPNIA,CEA,SACLAY,FRANCE

[36] SEOUL NATL UNIV,SEOUL,SOUTH KOREA

[37] SUNY STONY BROOK,STONY BROOK,NY 11794

[38] SUPERCONDUCTING SUPER COLLIDER LAB,DALLAS,TX 75237

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

[40] UNIV TEXAS,ARLINGTON,TX 76019

[41] TEXAS A&M UNIV,COLLEGE STN,TX 77843

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.74.2632

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The D0 Collaboration reports on a search for the standard model top quark in pp̄ collisions at s=1.8TeV at the Fermilab Tevatron with an integrated luminosity of approximately 50 pb-1. We have searched for tt̄ production in the dilepton and single-lepton decay channels with and without tagging of b-quark jets. We observed 17 events with an expected background of 3.8±0.6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2×10-6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measured its mass to be 199-21+19 (stat) ±22 (syst) GeV/c2 and its production cross section to be 6.4±2.2 pb. © 1995 The American Physical Society.

引用

页码：2632 / 2637

页数：6

共 12 条

[1] NEW MEASUREMENT OF THE CHARGE RADIUS OF THE NEUTRON
KOPECKY, S
RIEHS, P
HARVEY, JA
HILL, NW
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (13) : 2427 - 2430
[2] HOW TO MAKE LARGE DOMAINS OF DISORIENTED CHIRAL CONDENSATE
GAVIN, S
GOCKSCH, A
PISARSKI, RD
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (14) : 2143 - 2146
[3] THE D0 DETECTOR D0 COLLABORATION
ABACHI, S
ABOLINS, M
ACHARYA, BS
ADAM, I
AHN, S
AIHARA, H
ALVAREZ, G
ALVES, GA
AMOS, N
ANDERSON, W
ANTIPOV, Y
ARONSON, SH
ASTUR, R
AVERY, RE
BADEN, A
BALDERSTON, J
BALDIN, B
BANTLY, J
BARASCH, E
BARTLETT, JF
BAZIZI, K
BEHNKE, T
BEZZUBOV, V
BHAT, PC
BLAZEY, G
BLESSING, S
BOEHNLEIN, A
BORCHERDING, F
BORDERS, J
BOZKO, N
BRANDT, A
BROCK, R
BROSS, A
BUCHHOLZ, D
BURTOVOY, V
BUTLER, JM
CALLOT, O
CHAKRABORTY, D
CHEKULAEV, S
CHEN, J
CHEN, LP
CHEN, W
CHOUDHARY, BC
CHRISTENSON, JH
CLAES, D
CLARK, AR
COBAU, WG
COCHRAN, J
COOPER, WE
CRETSINGER, C
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 338 (2-3) : 185 - 253
[4] EVIDENCE FOR TOP-QUARK PRODUCTION IN P(OVER-BAR)-P COLLISIONS AT ROOT=1.8-TEV
ABE, F
ALBROW, MG
AMENDOLIA, SR
AMIDEI, D
ANTOS, J
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AUSTERN, M
AZFAR, F
AZZI, P
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAO, J
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BARTALINI, P
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BENSINGER, J
BENTON, D
BERETVAS, A
BERGE, JP
BERTOLUCCI, S
BHATTI, A
BIERY, K
BINKLEY, M
BIRD, F
BISELLO, D
BLAIR, RE
BLOCKER, C
BODEK, A
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BUCKLEYGEER, E
BUDD, HS
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (02) : 225 - 231
[5] EVIDENCE FOR TOP-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S=1.8 TEV
ABE, F
ALBROW, MG
AMENDOLIA, SR
AMIDEI, D
ANTOS, J
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AUSTERN, M
AZFAR, F
AZZI, P
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAO, J
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BARTALINI, P
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BENSINGER, J
BENTON, D
BERETVAS, A
BERGE, JP
BERTOLUCCI, S
BHATTI, A
BIERY, K
BINKLEY, M
BIRD, F
BISELLO, D
BLAIR, RE
BLOCKER, C
BODEK, A
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BUCKLEYGEER, E
BUDD, HS
[J]. PHYSICAL REVIEW D, 1994, 50 (05): : 2966 - 3026
[6] ON THE PRODUCTION OF A W AND JETS AT HADRON COLLIDERS
BERENDS, FA
KUIJF, H
TAUSK, B
GIELE, WT
[J]. NUCLEAR PHYSICS B, 1991, 357 (01) : 32 - 64
[7] CARMINATI F, 1991, UNPUB GEANT USERS GU
[8] TOP-QUARK PRODUCTION CROSS-SECTION
LAENEN, E
SMITH, J
VANNEERVEN, WL
[J]. PHYSICS LETTERS B, 1994, 321 (03) : 254 - 258
[9] HERWIG 5.1 - A MONTE-CARLO EVENT GENERATOR FOR SIMULATING HADRON EMISSION REACTIONS WITH INTERFERING GLUONS
MARCHESINI, G
WEBBER, BR
ABBIENDI, G
KNOWLES, IG
SEYMOUR, MH
STANCO, L
[J]. COMPUTER PHYSICS COMMUNICATIONS, 1992, 67 (03) : 465 - 508
[10] PAIGE F, 1986, BNL38034 REP

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