Search for excited electrons in p(p)over-bar collisions at √s=1.96 TeV

被引：18

作者：

Abazov, V. M. ^{[1
,44
]}

Abbott, B. ^{[88
]}

Abolins, M. ^{[78
]}

Acharya, B. S. ^{[36
]}

Adams, M. ^{[64
]}

Adams, T. ^{[62
]}

Aguilo, E. ^{[7
,8
,9
,10
]}

Ahn, S. H. ^{[38
]}

Ahsan, M. ^{[72
]}

Alexeev, G. D. ^{[1
,44
]}

Alkhazov, G. ^{[48
]}

Alton, A. ^{[77
]}

Alverson, G. ^{[76
]}

Alves, G. A. ^{[3
]}

Anastasoaie, M. ^{[43
]}

Ancu, L. S. ^{[43
]}

Andeen, T. ^{[66
]}

Anderson, S. ^{[57
]}

Andrieu, B. ^{[21
,22
]}

Anzelc, M. S. ^{[66
]}

Arnoud, Y. ^{[18
]}

Arov, M. ^{[73
]}

Arthaud, M. ^{[23
]}

Askew, A. ^{[62
]}

Asman, B. ^{[57
]}

Jesus, A. C. S. Assis ^{[21
,22
]}

Atramentov, O. ^{[62
]}

Autermann, C. ^{[28
]}

Avila, C. ^{[12
]}

Ay, C. ^{[31
]}

Badaud, F. ^{[17
]}

Baden, A. ^{[74
]}

Bagby, L. ^{[65
]}

Baldin, B. ^{[63
]}

Bandurin, D. V. ^{[72
]}

Banerjee, S. ^{[36
]}

Banerjee, P. ^{[36
]}

Barberis, E. ^{[76
]}

Barfuss, A. -F. ^{[19
]}

Bargassa, P. ^{[93
]}

Baringer, P. ^{[71
]}

Barreto, J. ^{[3
]}

Bartlett, J. F. ^{[63
]}

Bassler, U. ^{[23
]}

Bauer, D. ^{[55
]}

Beale, S. ^{[7
,8
,9
,10
]}

Bean, A. ^{[71
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[84
]}

Belanger-Champagne, C. ^{[49
,50
,51
,52
]}

机构：

[1] Joint Nucl Res Inst, 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, BR-20550011 Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

[6] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[7] Univ Alberta, Edmonton, AB, Canada

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

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

[10] McGill Univ, Montreal, PQ, Canada

[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 Republ, Prague, Czech Republic

[16] Univ San Francisco, Quito, Ecuador

[17] Univ Blaise Pascal, CNRS IN2P3, LPC, Clermont, France

[18] Univ Grenoble 1, Inst Natl Polytech Grenoble, CNRS IN2P3, LPSC, F-38041 Grenoble, France

[19] Univ Mediterranee, IN2P3 CNRS, CPPM, Marseille, France

[20] Univ Paris Sud, IN2P3 CNRS, LAL, Orsay, France

[21] Univ Paris 04, IN2P3 CNRS, LPNHE, Paris, France

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

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

[24] Univ Strasbourg, IPHC, Strasbourg, France

[25] Univ Haute Alsace, CNRS IN2P3, Strasbourg, France

[26] Univ Lyon 1, CNRS IN2P3, IPNL, F-69622 Villeurbanne, France

[27] Univ Lyon, Lyon, France

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

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

[30] Univ Freiburg, Inst Phys, Freiburg, Germany

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

[32] Univ Munich, Munich, Germany

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

[34] Panjab Univ, Chandigarh 160014, India

[35] Univ Delhi, Delhi 110007, India

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

[37] Univ Coll Dublin, Dublin 2, Ireland

[38] Korea Univ, Korea Detector Lab, Seoul, South Korea

[39] Sungkyunkwan Univ, Suwon, South Korea

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

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

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

[43] Radboud Univ Nijmegen, NIKHEF H, NL-6525 ED Nijmegen, Netherlands

[44] Joint Nucl Res Inst, Dubna, Russia

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

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

[47] Inst High Energy Phys, Protvino, Russia

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

[49] Lund Univ, Lund, Sweden

[50] Royal Inst Technol, Stockholm, Sweden

来源：

PHYSICAL REVIEW D | 2008年 / 77卷 / 09期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.77.091102

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a search for the production of an excited state of the electron, e(*), in proton-antiproton collisions at root s = 1.96 TeV. The data were collected with the D0 experiment at the Fermilab Tevatron Collider and correspond to an integrated luminosity of approximately 1 fb(-1). We search for e(*) in the process p (p) over bar -> e(*)e, with the e(*) subsequently decaying to an electron plus photon. No excess above the standard model background is observed. Interpreting our data in the context of a model that describes e(*) production by four-fermion contact interactions and e(*) decay via electroweak processes, we set 95% C.L. upper limits on the production cross section ranging from 8.9 to 27 fb, depending on the mass of the excited electron. Choosing the scale for contact interactions to be Lambda = 1 TeV, excited electron masses below 756 GeV are excluded at the 95% C.L.

引用

页数：8

共 27 条

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