IDENTIFICATION OF TOP QUARKS USING KINEMATIC VARIABLES

被引：35

作者：

ABE, F

AKIMOTO, H

AKOPIAN, A

ALBROW, MG

AMENDOLIA, SR

AMIDEI, D

ANTOS, J

ANWAYWIESE, C

AOTA, S

APOLLINARI, G

ASAKAWA, T

ASHMANSKAS, W

ATAC, M

AUCHINCLOSS, P

AZFAR, F

AZZIBACCHETTA, P

BACCHETTA, N

BADGETT, W

BAGDASAROV, S

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

BISELLO, D

BLAIR, RE

BLOCKER, C

BODEK, A

BOKHARI, W

BOLOGNESI, V

BORTOLETTO, D

机构：

[1] ARGONNE NATL LAB, ARGONNE, IL 60439 USA

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

[3] BRANDEIS UNIV, WALTHAM, MA 02254 USA

[4] UNIV CALIF LOS ANGELES, LOS ANGELES, CA 90024 USA

[5] UNIV CHICAGO, CHICAGO, IL 60637 USA

[6] DUKE UNIV, DURHAM, NC 27708 USA

[7] FERMILAB NATL ACCELERATOR LAB, BATAVIA, IL 60510 USA

[8] IST NAZL FIS NUCL, LAB NAZL FRASCATI, I-00044 FRASCATI, ITALY

[9] HARVARD UNIV, CAMBRIDGE, MA 02138 USA

[10] HIROSHIMA UNIV, HIGASHIHIROSHIMA 724, JAPAN

[11] UNIV ILLINOIS, URBANA, IL 61801 USA

[12] MCGILL UNIV, INST PARTICLE PHYS, MONTREAL, PQ H3A 2T8, CANADA

[13] UNIV TORONTO, TORONTO, ON M5S 1A7, CANADA

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

[15] UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

[16] MIT, CAMBRIDGE, MA 02139 USA

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

[18] MICHIGAN STATE UNIV, E LANSING, MI 48824 USA

[19] UNIV NEW MEXICO, ALBUQUERQUE, NM 87131 USA

[20] OSAKA CITY UNIV, OSAKA 588, JAPAN

[21] UNIV PADUA, IST NAZL FIS NUCL, SEZ PADOVA, I-35131 PADUA, ITALY

[22] UNIV PENN, PHILADELPHIA, PA 19104 USA

[23] UNIV PITTSBURGH, PITTSBURGH, PA 15260 USA

[24] UNIV PISA, IST NAZL FIS NUCL, I-56100 PISA, ITALY

[25] SCUOLA NORMALE SUPER PISA, I-56100 PISA, ITALY

[26] PURDUE UNIV, W LAFAYETTE, IN 47907 USA

[27] UNIV ROCHESTER, ROCHESTER, NY 14627 USA

[28] ROCKEFELLER UNIV, NEW YORK, NY 10021 USA

[29] RUTGERS STATE UNIV, PISCATAWAY, NJ 08854 USA

[30] ACAD SINICA, TAIPEI 11529, TAIWAN

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

[32] TEXAS TECH UNIV, LUBBOCK, TX 79409 USA

[33] UNIV TSUKUBA, TSUKUBA, IBARAKI 305, JAPAN

[34] TUFTS UNIV, MEDFORD, MA 02155 USA

[35] UNIV WISCONSIN, MADISON, WI 53706 USA

[36] YALE UNIV, NEW HAVEN, CT 06511 USA

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.52.R2605

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have used a kinematic technique to distinguish top quark pair production from background in p ($) over bar p collisions at root s=1.8 TeV, applied to 67 pb(-1) of data. We define a sample of W+ greater than or equal to 3 jet events in which the jets are produced at large angles relative to the incident beams. In this sample, we find an excess of events with large jet transverse energies relative to expectations from background. The excess is consistent with top quark production; a large fraction of events in this kinematic region contains b jets. We interpret these results as evidence that most of the selected events are from t ($) over bar t decay.

引用

页码：R2605 / R2609

页数：5

共 13 条

[1] OBSERVATION OF THE TOP-QUARK
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
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (14) : 2632 - 2637
[2] 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
[3] 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
[4] NEARBY DOORWAY STATES, PARITY DOUBLETS, AND PARITY MIXING IN COMPOUND NUCLEAR-STATES
AUERBACH, N
BOWMAN, JD
SPEVAK, V
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (14) : 2638 - 2641
[5] THE CDF DETECTOR - AN OVERVIEW
ABE, F
AMIDEI, D
APOLLINARI, G
ASCOLI, G
ATAC, M
AUCHINCLOSS, P
BADEN, AR
BARBAROGALTIERI, A
BARNES, VE
BARSOTTI, E
BEDESCHI, F
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENSINGER, J
BERETVAS, A
BERGE, P
BERTOLUCCI, S
BHADRA, S
BINKLEY, M
BLAIR, R
BLOCKER, C
BOFILL, J
BOOTH, AW
BRANDENBURG, G
BRENNER, A
BROWN, D
BYON, A
BYRUM, KL
CAMPBELL, M
CAREY, R
CARITHERS, W
CARLSMITH, D
CARROLL, JT
CASHMORE, R
CERVELLI, F
CHADWICK, K
CHAPIN, T
CHIARELLI, G
CHINOWSKY, W
CIHANGIR, S
CLINE, D
CONNOR, D
CONTRERAS, M
COOPER, J
CORDELLI, M
CURATOLO, M
DAY, C
DELFABBRO, R
DELLORSO, M
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 271 (03) : 387 - 403
[6] KINEMATIC EVIDENCE FOR TOP-QUARK PAIR PRODUCTION IN W PLUS MULTIJET EVENTS IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV
ABE, F
ALBROW, MG
AMENDOLIA, SR
AMIDEI, D
ANTOS, J
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
ATAC, M
AUCHINCLOSS, P
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
BOKHARI, W
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BROMBERG, C
[J]. PHYSICAL REVIEW D, 1995, 51 (09): : 4623 - 4637
[7] AZZI P, FERMILABCONF94205E R
[8] 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
[9] COBA M, INFN PIAE94004 REP
[10] ON EXPLOITING THE SINGLE-LEPTON EVENT STRUCTURE FOR THE TOP SEARCH
COBAL, M
GRASSMANN, H
LEONE, S
[J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1994, 107 (01): : 75 - 83

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