Search for heavy particles decaying into electron-positron pairs in p(p)over-bar collisions -: art. no. 061802

被引：24

作者：

Abazov, VM ^{[1
]}

Abbott, B

Abdesselam, A

Abolins, M

Abramov, V

Acharya, BS

Adams, DL

Adams, M

Ahmed, SN

Alexeev, GD

Alves, GA

Amos, N

Anderson, EW

Baarmand, MM

Babintsev, VV

Babukhadia, L

Bacon, TC

Baden, A

Baldin, B

Balm, PW

Banerjee, S

Barberis, E

Baringer, P

Barreto, J

Bartlett, JF

Bassler, U

Bauer, D

Bean, A

Begel, M

Belyaev, A

Beri, SB

Bernardi, G

Bertram, I

Besson, A

Beuselinck, R

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Blazey, G

Blessing, S

Boehnlein, A

Bojko, NI

Borcherding, F

Bos, K

Brandt, A

Breedon, R

Briskin, G

Brock, R

Brooijmans, G

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

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

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

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

[5] Inst High Energy Phys, Beijing 100039, Peoples R China

[6] Univ Los Andes, Bogota, Colombia

[7] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic

[8] Acad Sci, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[9] Univ San Francisco Quito, Quito, Ecuador

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

[11] Univ Aix Marseille 2, CNRS, IN2P3, CPPM, Marseille, France

[12] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91405 Orsay, France

[13] Univ Paris 06 & 7, LPNHE, CNRS, IN2P3, Paris, France

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

[15] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[16] Panjab Univ, Chandigarh 160014, India

[17] Univ Delhi, Delhi 110007, India

[18] Tata Inst Fundamental Res, Mumbai, India

[19] Seoul Natl Univ, Seoul, South Korea

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

[21] NIKHEF, FOM Inst, Amsterdam, Netherlands

[22] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[23] Univ Nijmegen, NIKHEF, Nijmegen, Netherlands

[24] Inst Nucl Phys, Krakow, Poland

[25] Inst Theoret & Expt Phys, Moscow 117259, Russia

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

[27] Inst High Energy Phys, Protvino, Russia

[28] Univ Lancaster, Lancaster, England

[29] Univ London Imperial Coll Sci & Technol, London, England

[30] Univ Arizona, Tucson, AZ 85721 USA

[31] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

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

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

[34] Calif State Univ Fresno, Fresno, CA 93740 USA

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

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

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

[38] Univ Hawaii, Honolulu, HI 96822 USA

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

[40] Univ Illinois, Chicago, IL 60607 USA

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

[42] Northwestern Univ, Evanston, IL 60208 USA

[43] Indiana Univ, Bloomington, IN 47405 USA

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

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

[46] Univ Kansas, Lawrence, KS 66045 USA

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

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

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

[50] Boston Univ, Boston, MA 02215 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.87.061802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present results of searches for technirho (rho (T)), techniomega (omega (T)), and Z' particles, using the decay channels rho (T), omega (T), Z' --> e(+)e(-). The search is based on 124.8 pb(-1) of data collected by the DO detector at the Fermilab Tevatron during 1992-1996. In the absence of a signal, we set 95% C.L. upper limits on the cross sections for the processes p (p) over bar --> rho (T), omega (T), Z' - e(+)e(-) as a function of the mass of the decaying particle. For certain model parameters, we exclude the existence of degenerate rho (T) and omega (T) states with masses below about 200 GeV. We exclude a Z' with mass below 670 GeV, assuming that it has the same couplings to fermions as the Z boson.

引用

页码：618021 / 618026

页数：6

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