Direct measurement of the top quark mass

被引：106

作者：

Abachi, S

Abbott, B

Abolins, M

Acharya, BS

Adam, I

Adams, DL

Adams, M

Ahn, S

Aihara, H

Alves, GA

Amidi, E

Amos, N

Anderson, EW

Astur, R

Baarmand, MM

Baden, A

Balamurali, V

Balderston, J

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Bartlett, JF

Bazizi, K

Belyaev, A

Beri, SB

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Biswas, N

Blazey, G

Blessing, S

Bloom, P

Boehnlein, A

Bojko, NI

Borcherding, F

Borders, J

Boswell, C

Brandt, A

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

CastillaValdez, H

Chakraborty, D

机构：

[1] UNIV ARIZONA, TUCSON, AZ 85721 USA

[2] BOSTON UNIV, BOSTON, MA 02215 USA

[3] BROOKHAVEN NATL LAB, UPTON, NY 11973 USA

[4] BROWN UNIV, PROVIDENCE, RI 02912 USA

[5] UNIV BUENOS AIRES, BUENOS AIRES, DF, ARGENTINA

[6] UNIV CALIF DAVIS, DAVIS, CA 95616 USA

[7] UNIV CALIF IRVINE, IRVINE, CA 92697 USA

[8] UNIV CALIF RIVERSIDE, RIVERSIDE, CA 92521 USA

[9] CTR BRASILEIRO PESQUISAS FIS, LAFEX, RIO DE JANEIRO, BRAZIL

[10] CINVESTAV, MEXICO CITY 14000, DF, MEXICO

[11] COLUMBIA UNIV, NEW YORK, NY 10027 USA

[12] UNIV DELHI, DELHI 110007, INDIA

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

[14] FLORIDA STATE UNIV, TALLAHASSEE, FL 32306 USA

[15] UNIV HAWAII, HONOLULU, HI 96822 USA

[16] UNIV ILLINOIS, CHICAGO, IL 60607 USA

[17] INDIANA UNIV, BLOOMINGTON, IN 47405 USA

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

[19] KOREA UNIV, SEOUL 136701, SOUTH KOREA

[20] KYUNGSUNG UNIV, PUSAN 608736, SOUTH KOREA

[21] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

[22] UNIV CALIF BERKELEY, BERKELEY, CA 94720 USA

[23] UNIV MARYLAND, COLLEGE PK, MD 20742 USA

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

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

[26] UNIV NEBRASKA, LINCOLN, NE 68588 USA

[27] NYU, NEW YORK, NY 10003 USA

[28] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[29] NO ILLINOIS UNIV, DE KALB, IL 60115 USA

[30] NORTHWESTERN UNIV, EVANSTON, IL 60208 USA

[31] UNIV NOTRE DAME, NOTRE DAME, IN 46556 USA

[32] UNIV OKLAHOMA, NORMAN, OK 73019 USA

[33] UNIV PANJAB, CHANDIGARH 160014, INDIA

[34] MOSCOW HIGH ENERGY PHYS INST, PROTVINO 142284, RUSSIA

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

[36] RICE UNIV, HOUSTON, TX 77005 USA

[37] UNIV FED RIO DE JANEIRO, RIO DE JANEIRO, BRAZIL

[38] UNIV ROCHESTER, ROCHESTER, NY 14267 USA

[39] CE SACLAY, CEA,DAPNIA,SERV PHYS PARTICULES, GIF SUR YVETTE, FRANCE

[40] SEOUL NATL UNIV, SEOUL, SOUTH KOREA

[41] SUNY STONY BROOK, STONY BROOK, NY 11794 USA

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

[43] UNIV TEXAS, ARLINGTON, TX 76019 USA

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

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.79.1197

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the top quark mass m(t) using t(t) over bar pairs produced in the DO detector by root s = 1.8 TeV p(p) over bar collisions in a 125 pb(-1) exposure at the Fermilab Tevatron. We make a two constraint fit to m(t) in t(t) over bar --> bW(+)(b) over bar W- final states with one W decaying to q(q) over bar and the other to e nu or mu nu. Events are binned in fit mass versus a measure of probability for events to be signal rather than background. Likelihood fits to the data yield m(t) = 173.3 +/- 5.6(stat) +/- 6.2(syst) GeV/c(2).

引用

页码：1197 / 1202

页数：6

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