Search for manifestations of new physics in fermion-pair production at LEP

被引:62
|
作者
Acciarri, M [1 ]
Achard, P
Adriani, O
Aguilar-Benitez, M
Alcaraz, J
Alemanni, G
Allaby, J
Aloisio, A
Alviggi, MG
Ambrosi, G
Anderhub, H
Andreev, VP
Angelescu, T
Anselmo, F
Arefiev, A
Azemoon, T
Aziz, T
Bagnaia, P
Bajo, A
Baksay, L
Balandras, A
Baldew, SV
Banerjee, S
Banerjee, SW
Barczyk, A
Barillère, R
Barone, L
Bartalini, P
Basile, M
Battiston, R
Bay, A
Becattini, F
Becker, U
Behner, F
Bellucci, L
Berbeco, R
Berdugo, J
Berges, P
Bertucci, B
Betev, BL
Bhattacharya, S
Biasini, M
Biland, A
Blaising, JJ
Blyth, SC
Bobbink, GJ
Böhm, A
Boldizsar, L
Borgia, B
Bourilkov, D
机构
[1] Ist Nazl Fis Nucl, Sezione Milano, I-20133 Milan, Italy
[2] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany
[3] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany
[4] NIKHEF, Natl Inst High Energy Phys, NL-1009 DB Amsterdam, Netherlands
[5] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands
[6] Univ Michigan, Ann Arbor, MI 48109 USA
[7] LAPP, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[8] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
[9] Louisiana State Univ, Baton Rouge, LA 70803 USA
[10] IHEP, Beijing 100039, Peoples R China
[11] Humboldt Univ, D-10099 Berlin, Germany
[12] Univ Bologna, I-40126 Bologna, Italy
[13] Ist Nazl Fis Nucl, Sezione Bologna, I-40126 Bologna, Italy
[14] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[15] Northeastern Univ, Boston, MA 02115 USA
[16] Inst Atom Phys, R-76900 Bucharest, Romania
[17] Univ Bucharest, R-76900 Bucharest, Romania
[18] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest 114, Hungary
[19] MIT, Cambridge, MA 02139 USA
[20] Univ Debrecen, ATOMKI, H-4010 Debrecen, Hungary
[21] Ist Nazl Fis Nucl, Sezione Firenze, I-50125 Florence, Italy
[22] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland
[23] World Lab, FBLJA Project, CH-1211 Geneva 23, Switzerland
[24] Univ Geneva, CH-1211 Geneva 4, Switzerland
[25] Univ Sci & Technol China, USTC, Hefei 230029, Anhui, Peoples R China
[26] SEFT, Res Inst High Energy Phys, SF-00014 Helsinki, Finland
[27] Univ Lausanne, CH-1015 Lausanne, Switzerland
[28] Ist Nazl Fis Nucl, Sezione Lecce, I-73100 Lecce, Italy
[29] Univ Lecce, I-73100 Lecce, Italy
[30] Univ Lyon 1, CNRS, IN2P3, Inst Nucl Phys, F-69622 Villeurbanne, France
[31] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain
[32] ITEP, Moscow, Russia
[33] Ist Nazl Fis Nucl, Sezione Napoli, I-80125 Naples, Italy
[34] Univ Naples Federico II, I-80125 Naples, Italy
[35] Univ Cyprus, Dept Nat Sci, Nicosia, Cyprus
[36] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands
[37] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands
[38] CALTECH, Pasadena, CA 91125 USA
[39] Ist Nazl Fis Nucl, Sezione Perugia, I-06100 Perugia, Italy
[40] Univ Perugia, I-06100 Perugia, Italy
[41] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[42] Princeton Univ, Princeton, NJ 08544 USA
[43] Ist Nazl Fis Nucl, Sezione Roma, I-00185 Rome, Italy
[44] Univ Roma La Sapienza, I-00185 Rome, Italy
[45] Inst Phys Nucl, St Petersburg, Russia
[46] Ist Nazl Fis Nucl, Sezione Napoli, I-85100 Potenza, Italy
[47] Univ Potenza, I-85100 Potenza, Italy
[48] Univ Salerno, I-84100 Salerno, Italy
[49] Ist Nazl Fis Nucl, I-84100 Salerno, Italy
[50] Univ Calif San Diego, La Jolla, CA 92093 USA
关键词
D O I
10.1016/S0370-2693(00)00887-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The measurements of hadron and lepton-pair production cross sections and leptonic forward-backward asymmetries performed with the L3 detector at centre-of-mass energies between 130 GeV and 189 GeV are used to search for new physics phenomena such as: contact interactions, exchange of virtual leptoquarks, scalar quarks and scalar neutrinos, effects of TeV strings in models of quantum gravity with large extra dimensions and non-zero sizes of the fermions, No evidence for these phenomena is found and new limits on their parameters are set. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:81 / 92
页数:12
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