Search for squarks and gluinos in single-photon events with jets and large missing transverse energy in p(p)over-bar collisions at √s = 1.8 TeV

被引：18

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adam, I

Adams, DL

Adams, M

Ahn, S

Aihara, H

Alves, GA

Amos, N

Anderson, EW

Astur, R

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Balamurali, V

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

Biswas, N

Blazey, G

Blessing, S

Bloom, P

Boehnlein, A

Bojko, NI

Borcherding, F

Boswell, C

Brandt, A

Breedon, R

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

Casilum, Z

Castilla-Valdez, H

机构：

[1] NYU, New York, NY 10003 USA

[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] Univ Los Andes, Bogota, Colombia

[6] CEA Saclay, Serv Phys Particules, DAPNIA, Gif Sur Yvette, France

[7] Panjab Univ, Chandigarh 160014, India

[8] Univ Delhi, Delhi 110007, India

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

[10] Kyungsung Univ, Pusan 608736, South Korea

[11] Seoul Natl Univ, Seoul, South Korea

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

[13] Inst Nucl Phys, Krakow, Poland

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

[15] Moscow State Univ, Moscow, Russia

[16] Inst High Energy Phys, Protvino, Russia

[17] Univ Arizona, Tucson, AZ 85721 USA

[18] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

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

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

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

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

[23] Univ Hawaii, Honolulu, HI 96822 USA

[24] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[25] Univ Illinois, Chicago, IL 60607 USA

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

[27] Northwestern Univ, Evanston, IL 60208 USA

[28] Indiana Univ, Bloomington, IN 47405 USA

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

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

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

[32] Univ Kansas, Lawrence, KS 66045 USA

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

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

[35] Boston Univ, Boston, MA 02215 USA

[36] Northeastern Univ, Boston, MA 02115 USA

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

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

[39] Univ Nebraska, Lincoln, NE 68588 USA

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

[41] Univ Rochester, Rochester, NY 14627 USA

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

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

[44] Univ Oklahoma, Norman, OK 73019 USA

[45] Brown Univ, Providence, RI 02912 USA

[46] Univ Texas, Arlington, TX 76019 USA

[47] Texas A&M Univ, College Stn, TX 77843 USA

[48] Rice Univ, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.82.29

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We search for new physics using events with one high transverse energy photon, two or more jets, and an apparent imbalance in transverse energy, in p (p) over bar collisions at the Fermilab Tevatron at root s = 1.8 TeV. Such events are predicted for production of supersymmetric particles in some models. No excess is observed beyond expected background. For the parameter space of the minimal supersymmetric standard model with branching fraction B(<(chi)over tilde>(0)(2) --> gamma<(chi)over tilde>(0)(1)) = and m<(chi)over tilde>(0)(2) - m<(chi)over tilde>(0)(1) > 20 GeV, we obtain a 95% confidence level lower mass limit of 310 GeV for equal mass squarks and gluinos. The results are also interpreted in models with low energy gauge mediated supersymmetry breaking. [S0031-9007(98)08065-X].

引用

页码：29 / 34

页数：6

共 29 条

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