Study Zγ events and limits on anomalous ZZγ and Zγγ couplings in pp- collisions at √s=1.96 Tev -: art. no. 051802

被引：15

作者：

Abazov, VM ^{[1
]}

Abbott, B

Abolins, M

Acharya, BS

Adams, M

Adams, T

Agelou, M

Agram, JL

Ahn, SH

Ahsan, M

Alexeev, GD

Alkhazov, G

Alton, A

Alverson, G

Alves, GA

Anastasoaie, M

Andeen, T

Anderson, S

Andrieu, B

Arnoud, Y

Askew, A

Åsman, B

Jesus, ACSS

Atramentov, O

Autermann, C

Avila, C

Badaud, F

Baden, A

Baldin, B

Balm, PW

Banerjee, S

Barberis, E

Bargassa, P

Baringer, P

Barnes, C

Barreto, J

Bartlett, JF

Bassler, U

Bauer, D

Bean, A

Beauceron, S

Begel, M

Bellavance, A

Beri, SB

Bernardi, G

Bernhard, R

Bertram, I

Besançon, M

Beuselinck, R

Bezzubov, VA

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Buenos Aires, RA-1053 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 Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[6] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[7] Univ Alberta, Edmonton, AB T6G 2M7, Canada

[8] York Univ, Toronto, ON M3J 2R7, Canada

[9] McGill Univ, Montreal, PQ H3A 2T5, Canada

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

[11] Univ Sci & Technol China, Hefei 230026, Peoples R China

[12] Univ Los Andes, Bogota, Colombia

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

[14] Czech Tech Univ, CR-16635 Prague, Czech Republic

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

[16] Univ San Francisco Quito, Quito, Ecuador

[17] Univ Clermont Ferrand, CNRS, IN2P3, Phys Corpusculaire Lab, Clermont Ferrand, France

[18] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France

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

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

[21] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[22] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

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

[24] Univ Louis Pasteur Strasbourg 1, CNRS, IN2P3, IReS, Strasbourg, France

[25] Univ Haute Alsace, Mulhouse, France

[26] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France

[27] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[28] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[29] Univ Freiburg, Inst Phys, D-7800 Freiburg, Germany

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

[31] Univ Munich, Munich, Germany

[32] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[33] Panjab Univ, Chandigarh 160014, India

[34] Univ Delhi, Delhi 110007, India

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

[36] Univ Coll Dublin, Dublin 2, Ireland

[37] Korea Univ, Korea Detector Lab, Seoul 136701, South Korea

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

[39] NIKHEF H, FOM Inst, NL-1009 DB Amsterdam, Netherlands

[40] Univ Amsterdam, NIKHEF H, Amsterdam, Netherlands

[41] Radboud Univ Nijmegen, NIKHEF H, Nijmegen, Netherlands

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

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

[44] Inst High Energy Phys, Protvino, Russia

[45] Petersburg Nucl Phys Inst, St Petersburg, Russia

[46] Lund Univ, Lund, Sweden

[47] Royal Inst Technol, Stockholm, Sweden

[48] Stockholm Univ, S-10691 Stockholm, Sweden

[49] Uppsala Univ, S-75105 Uppsala, Sweden

[50] Univ Lancaster, Lancaster LA1 4YW, England

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.95.051802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a measurement of the Z gamma production cross section and limits on anomalous ZZ gamma and Z gamma gamma couplings for form-factor scales of Lambda=750 and 1000 GeV. The measurement is based on 138 (152) candidates in the ee gamma (mu mu gamma) final state using 320(290) pb(-1) of p (p) over bar collisions at root s=1.96 TeV. The 95% C.L. limits on real and imaginary parts of individual anomalous couplings are vertical bar h(10,30)(Z)vertical bar < 0.23, vertical bar h(20,40)(Z)vertical bar < 0.020, vertical bar h(10,30)(gamma)vertical bar < 0.23, and vertical bar h(20,40)(gamma)vertical bar < 0.019 for Lambda=1000 GeV.

引用

页数：7

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