Search for light top squarks in p(p)over-bar collisions at root s=1.8 TeV

被引：86

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

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

机构：

[1] UNIV LOS ANDES, SANTA FE DE BOGOTA, COLOMBIA

[2] UNIV ARIZONA, TUCSON, AZ 85721 USA

[3] BOSTON UNIV, BOSTON, MA 02215 USA

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

[5] BROWN UNIV, PROVIDENCE, RI 02912 USA

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

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

[8] UNIV CALIF IRVINE, IRVINE, CA 92717 USA

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

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

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

[12] UNIV DELHI, DELHI 110007, INDIA

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

[14] UNIV HAWAII, HONOLULU, HI 96822 USA

[15] IOWA STATE UNIV, AMES, IA 50011 USA

[16] KOREA UNIV, SEOUL 136701, SOUTH KOREA

[17] KYUNGSUNG UNIV, PUSAN, SOUTH KOREA

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

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

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

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

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

[23] UNIV NEBRASKA, LINCOLN, NE 68588 USA

[24] NYU, NEW YORK, NY 10003 USA

[25] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

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

[27] NORTHWESTERN UNIV, EVANSTON, IL 60208 USA

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

[29] PANJAB UNIV, CHANDIGARH 160014, INDIA

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

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

[32] RICE UNIV, HOUSTON, TX 77251 USA

[33] UNIV ESTADUAL RIO DE JANEIRO, RIO DE JANEIRO, BRAZIL

[34] UNIV ROCHESTER, ROCHESTER, NY 14627 USA

[35] SEOUL NATL UNIV, SEOUL, SOUTH KOREA

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

[37] SUPERCONDUCTING SUPER COLLIDER LAB, DALLAS, TX 75237 USA

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

[39] UNIV TEXAS, ARLINGTON, TX 76019 USA

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

[41] UNIV ILLINOIS, CHICAGO, IL 60607 USA

[42] INDIANA UNIV, BLOOMINGTON, IN 47405 USA

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

[44] CTR ETUD SACLAY, DAPNIA, SERV PHYS PARTICULES, COMMISSARIAT ENERGIE ATOM, F-91191 GIF SUR YVETTE, FRANCE

[45] UNIV OKLAHOMA, NORMAN, OK 73019 USA

[46] CTR INVEST & ESTUDIOS AVANZADOS, MEXICO CITY, DF, MEXICO

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.76.2222

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a search for pair produced top squarks, the supersymmetric partners of the top quark, using the DO detector at the Fermilab Tevatron p (p) over bar collider. We consider a scenario in which the lighter of the two top squarks (t) over tilde(1) decays with 100% branching fraction to a charm quark and the lightest neutralino <(chi)over tilde>(0)(1) yielding a signal of two acollinear jets with missing transverse energy. 3 events while we expect 3.5 +/- 1.2 events from the known standard model processes. the 95% confidence level a significant region of the m((t) over tilde 1)-m(<(chi)over tilde>1)(0) parameter space. The highest m((t) over tilde 1) value we exclude is 93 GeV/c(2) with a corresponding m(<(chi)over tilde>1)(0) value of 8 GeV/c(2).

引用

页码：2222 / 2227

页数：6

共 28 条

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