Search for R-Parity violating supersymmetry in the dielectron channel

被引：29

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adams, I

Adams, DL

Adams, M

Ahn, S

Akimov, V

Alves, GA

Amos, N

Anderson, EW

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Baringer, P

Bartlett, JF

Belyaev, A

Beri, SB

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Blazey, G

Blessing, S

Bloom, P

Boehnlein, A

Bojko, NI

Borcherding, F

Boswell, C

Brandt, A

Breedon, R

Briskin, G

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

Casilum, Z

Castilla-Valdez, H

Chakraborty, D

Chekulaev, SV

机构：

[1] Univ Buenos Aires, Buenos Aires, DF, Argentina

[2] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[3] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[4] Inst High Energy Phys, Beijing, Peoples R China

[5] Univ Los Andes, Bogota, Colombia

[6] Univ San Francisco, Quito, Ecuador

[7] Univ Grenoble 1, CNRS, IN2P3, Inst Sci Nucl, Grenoble, France

[8] CEA, Serv Phys Particules, DAPNIA, Saclay, France

[9] Panjab Univ, Chandigarh 160014, India

[10] Univ Delhi, Delhi 110007, India

[11] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[12] Kyungsung Univ, Pusan 608736, South Korea

[13] Seoul Natl Univ, Seoul, South Korea

[14] CINVESTAV, Mexico City 14000, DF, Mexico

[15] Inst Nucl Phys, Krakow, Poland

[16] Inst Theoret & Expt Phys, Moscow, Russia

[17] Moscow MV Lomonosov State Univ, Moscow, Russia

[18] Inst High Energy Phys, Protvino, Russia

[19] Univ Lancaster, Lancaster, England

[20] Univ Arizona, Tucson, AZ 85721 USA

[21] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[22] Univ Calif Berkeley, Berkeley, CA 94720 USA

[23] Univ Calif Davis, Davis, CA 95616 USA

[24] Univ Calif Irvine, Irvine, CA 92697 USA

[25] Univ Calif Riverside, Riverside, CA 92521 USA

[26] Florida State Univ, Tallahassee, FL 32306 USA

[27] Univ Hawaii, Honolulu, HI 96822 USA

[28] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[29] Univ Illinois, Chicago, IL 60607 USA

[30] No Illinois Univ, De Kalb, IL 60115 USA

[31] Northwestern Univ, Evanston, IL 60208 USA

[32] Indiana Univ, Bloomington, IN 47405 USA

[33] Univ Notre Dame, Notre Dame, IN 46556 USA

[34] Purdue Univ, W Lafayette, IN 47907 USA

[35] Iowa State Univ, Ames, IA 50011 USA

[36] Univ Kansas, Lawrence, KS 66045 USA

[37] Kansas State Univ, Manhattan, KS 66506 USA

[38] Louisiana Tech Univ, Ruston, LA 71272 USA

[39] Univ Maryland, College Pk, MD 20742 USA

[40] Boston Univ, Boston, MA 02215 USA

[41] Northeastern Univ, Boston, MA 02115 USA

[42] Univ Michigan, Ann Arbor, MI 48109 USA

[43] Michigan State Univ, E Lansing, MI 48824 USA

[44] Univ Nebraska, Lincoln, NE 68588 USA

[45] Columbia Univ, New York, NY 10027 USA

[46] NYU, New York, NY 10003 USA

[47] Univ Rochester, Rochester, NY 14627 USA

[48] SUNY Stony Brook, Stony Brook, NY 11794 USA

[49] Brookhaven Natl Lab, Upton, NY 11973 USA

[50] Langston Univ, Langston, OK 73050 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 22期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.83.4476

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a search for R-parity-violating supersymmetry in p (p) over bar collisions at root s = 1.8 TeV using the DO detector at Fermilab. Events with at least two electrons and four or more jets were studied. We observe two events in 99 +/- 4.4 pb(-1) of data, consistent with the expected background of 1.8 +/- 0.4 events. This result is interpreted within the framework of minimal low-energy supergravity supersymmetry models. Squarks with mass below 243 GeV/c(2) and gluinos with mass below 227 GeV/c(2) are excluded at the 95% C.L. for A(0) = 0, mu < 0, tan beta = 2, and a finite value for any one of the six R-parity-violating couplings lambda(1jk)' (j = 1, 2 and k = 1, 2, 3).

引用

页码：4476 / 4481

页数：6

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