First observation of the all-hadronic decay of t(t)over-bar pairs

被引：68

作者：

Abe, F

Akimoto, H

Akopian, A

Albrow, MG

Amendolia, SR

Amidei, D

Antos, J

Aota, S

Apollinari, G

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

AzziBacchetta, P

Bacchetta, N

Badgett, W

Bagdasarov, S

Bailey, MW

Bao, J

deBarbaro, P

BarbaroGaltieri, A

Barnes, VE

Barnett, BA

Barone, M

Barzi, E

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

Berryhill, J

Bertolucci, S

Bevensee, B

Bhatti, A

Biery, K

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bodek, A

Bokhari, W

Bolognesi, V

机构：

[1] ARGONNE NATL LAB,ARGONNE,IL 60439

[2] UNIV BOLOGNA,IST NAZL FIS NUCL,I-40127 BOLOGNA,ITALY

[3] BRANDEIS UNIV,WALTHAM,MA 02264

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

[5] DUKE UNIV,DURHAM,NC 28708

[6] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[7] UNIV FLORIDA,GAINESVILLE,FL 33611

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

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

[10] HARVARD UNIV,CAMBRIDGE,MA 02138

[11] HIROSHIMA UNIV,HIGASHIHIROSHIMA 724,JAPAN

[12] UNIV ILLINOIS,URBANA,IL 61801

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

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

[15] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218

[16] ERNEST ORLANDO LAWRENCE BERKELEY NATL LAB,BERKELEY,CA 94720

[17] MIT,CAMBRIDGE,MA 02139

[18] UNIV MICHIGAN,ANN ARBOR,MI 48109

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

[20] UNIV CHICAGO,CHICAGO,IL 60638

[21] UNIV NEW MEXICO,ALBUQUERQUE,NM 87132

[22] OHIO STATE UNIV,COLUMBUS,OH 43320

[23] OSAKA CITY UNIV,OSAKA 588,JAPAN

[24] UNIV PADUA,IST NAZL FIS NUCL,I-36132 PADUA,ITALY

[25] SCUOLA NORMALE SUPER,I-36132 PADUA,ITALY

[26] UNIV PITTSBURGH,PITTSBURGH,PA 15270

[27] PURDUE UNIV,W LAFAYETTE,IN 47907

[28] UNIV ROCHESTER,ROCHESTER,NY 14628

[29] ROCKEFELLER UNIV,NEW YORK,NY 10021

[30] RUTGERS STATE UNIV,PISCATAWAY,NJ 08854

[31] ACAD SINICA,TAIPEI 11530,TAIWAN

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

[33] TEXAS TECH UNIV,LUBBOCK,TX 79409

[34] UNIV TSUKUBA,TSUKUBA,IBARAKI 315,JAPAN

[35] TUFTS UNIV,MEDFORD,MA 02155

[36] UNIV WISCONSIN,MADISON,WI 53806

[37] YALE UNIV,NEW HAVEN,CT 06511

[38] UNIV PENN,PHILADELPHIA,PA 19104

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.79.1992

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first observation of the all hadronic decay of t (t) over bar pairs. The analysis is performed using 109 pb(-1) of p (p) over bar collisions at root s = 1.8 TeV collected with the Collider Detector at Fermilab. We observe an excess of events with five or more jets, including one or two b jets, relative to background expectations. Based on this excess we evaluate the production cross section to be in agreement with previous results. We measure the top mass to be 186 +/- 10 +/- 12 GeV/c(2).

引用

页码：1992 / 1997

页数：6

共 15 条

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