Zγ production in p(p)over-bar collisions at √s=1.8 TeV and limits on anomalous ZZγ and Zγγ couplings

被引：36

作者：

Abbott, B ^{[1
]}

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

Boswell, C

Brandt, A

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

Butler, JM

Carvalho, W

Casey, D

Casilum, Z

Castilla-Valdez, H

Chakraborty, D

Chang, SM

机构：

[1] NYU, New York, NY 10003 USA

[2] Univ Los Andes, Bogota, Colombia

[3] Univ Arizona, Tucson, AZ 85721 USA

[4] Boston Univ, Boston, MA 02215 USA

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

[6] Brown Univ, Providence, RI 02912 USA

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

[8] Univ Calif Davis, Livermore, CA 95616 USA

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

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

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

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

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

[14] Univ Delhi, Delhi 110007, India

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

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

[17] Univ Hawaii, Honolulu, HI 96822 USA

[18] Univ Illinois, Chicago, IL 60607 USA

[19] Indiana Univ, Bloomington, IN 47405 USA

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

[21] Korea Univ, Seoul, South Korea

[22] Kyungsung Univ, Pusan 608736, South Korea

[23] Inst Nucl Phys, Krakow, Poland

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

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

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

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

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

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

[30] Moscow State Univ, Moscow, Russia

[31] Univ Nebraska, Lincoln, NE 68588 USA

[32] Northeastern Univ, Boston, MA 02115 USA

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

[34] Northwestern Univ, Evanston, IL 60208 USA

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

[36] Univ Oklahoma, Norman, OK 73019 USA

[37] Panjab Univ, Chandigarh 160014, India

[38] Inst High Energy Phys, Protvino 142284, Russia

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

[40] Rice Univ, Houston, TX 77005 USA

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

[42] Univ Rochester, Rochester, NY 14627 USA

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

[44] Seoul Natl Univ, Seoul, South Korea

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

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

[47] Univ Texas, Arlington, TX 76019 USA

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

[49] Univ San Francisco Quito, Quito, Ecuador

[50] IHEP, Beijing, Peoples R China

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.57.R3817

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of Z gamma+X production in <p(p)over bar> collisions at root s=1.8 TeV from 97 (87) pb(-1) of data collected in the ee gamma (mu mu gamma) decay channel with the D0 detector at Fermilab. The event yield and kinematic characteristics are consistent with the standard model predictions. We obtain limits on anomalous ZZ gamma and Z gamma gamma couplings for form factor scales Lambda=500 GeV and Lambda=750 GeV. Combining this analysis with our previous results yields 95% C.L. limits \h(30)(Z)\<0.36, \h(40)(Z)\<0.05, \h(30)(gamma)\<0.37, and \h(40)(gamma)\<0.05 for a form factor scale Lambda = 750 GeV. [S0556-2821(98)50507-3].

引用

页码：R3817 / R3821

页数：5

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