Search for doubly-charged Higgs bosons at LEP

被引:69
作者
Achard, P [1 ]
Adriani, O
Aguilar-Benitez, M
Alcaraz, J
Alemanni, G
Allaby, J
Aloisio, A
Alviggi, MG
Anderhub, H
Andreev, VP
Anselmo, F
Arefiev, A
Azemoon, T
Aziz, T
Bagnaia, P
Bajo, A
Baksay, G
Baksay, L
Baldew, SV
Banerjee, S
Banerjee, S
Barczyk, A
Barillère, R
Bartalini, P
Basile, M
Batalova, N
Battiston, R
Bay, A
Becattini, F
Becker, U
Behner, F
Bellucci, L
Berbeco, R
Berdugo, J
Berges, P
Bertucci, B
Betev, BL
Biasini, M
Biglietti, M
Biland, A
Blaising, JJ
Blyth, SC
Bobbink, GJ
Böhm, A
Boldizsar, L
Borgia, B
Bottai, S
Bourilkov, D
Bourquin, M
Braccini, S
机构
[1] Univ Geneva, CH-1211 Geneva 4, Switzerland
[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu, Taiwan
[3] Natl Cent Univ, Chungli 32054, Taiwan
[4] Univ Hamburg, D-22761 Hamburg, Germany
[5] ETH, CH-8093 Zurich, Switzerland
[6] DESY, D-15738 Zeuthen, Germany
[7] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[8] Purdue Univ, W Lafayette, IN 47907 USA
[9] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea
[10] Bulgarian Acad Sci, Cent Lab Mechatron & Instrumentat, BU-1113 Sofia, Bulgaria
[11] Univ Calif San Diego, La Jolla, CA 92093 USA
[12] Univ Salerno, I-84100 Salerno, Italy
[13] Ist Nazl Fis Nucl, I-84100 Salerno, Italy
[14] Univ Roma La Sapienza, I-00185 Rome, Italy
[15] Ist Nazl Fis Nucl, Sezione Roma, I-00185 Rome, Italy
[16] Univ Calif Riverside, Riverside, CA 92521 USA
[17] Princeton Univ, Princeton, NJ 08544 USA
[18] Univ Potenza, I-85100 Potenza, Italy
[19] Ist Nazl Fis Nucl, Sezione Napoli, I-85100 Potenza, Italy
[20] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[21] Inst Phys Nucl, St Petersburg, Russia
[22] Ist Nazl Fis Nucl, Sezione Perugia, I-06100 Perugia, Italy
[23] Univ Perugia, I-06100 Perugia, Italy
[24] CALTECH, Pasadena, CA 91125 USA
[25] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands
[26] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands
[27] Univ Cyprus, Dept Phys, Nicosia, Cyprus
[28] Univ Naples Federico II, I-80125 Naples, Italy
[29] Ist Nazl Fis Nucl, Sezione Napoli, I-80125 Naples, Italy
[30] Inst Theoret & Expt Phys, Moscow 117259, Russia
[31] Ist Nazl Fis Nucl, Sezione Milano, I-20133 Milan, Italy
[32] Florida Inst Technol, Melbourne, FL 32901 USA
[33] CIEMAT, E-28040 Madrid, Spain
[34] Univ Lyon 1, CNRS, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France
[35] Univ Lausanne, CH-1015 Lausanne, Switzerland
[36] Univ Sci & Technol China, Hefei 230029, Anhui, Peoples R China
[37] World Lab, FBLJA Project, CH-1211 Geneva 23, Switzerland
[38] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland
[39] Univ Florence, Dept Astron & Space Sci, I-50125 Florence, Italy
[40] Ist Nazl Fis Nucl, Sezione Firenze, I-50125 Florence, Italy
[41] Natl Univ Ireland Univ Coll Dublin, Dept Expt Phys, Dublin 4, Ireland
[42] Univ Debrecen, ATOMKI, H-4010 Debrecen, Hungary
[43] Panjab Univ, Chandigarh 160014, India
[44] MIT, Cambridge, MA 02139 USA
[45] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest 114, Hungary
[46] Inst Atom Phys, R-76900 Bucharest, Romania
[47] Univ Bucharest, R-76900 Bucharest, Romania
[48] Northeastern Univ, Boston, MA 02115 USA
[49] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[50] Univ Bologna, I-40126 Bologna, Italy
关键词
D O I
10.1016/j.physletb.2003.09.082
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Doubly-charged Higgs bosons are searched for in e(+)e(-) collision data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV Final states with four leptons are analysed to tag the pair-production of doubly-charged Higgs bosons. No significant excess is found and lower limits at 95% confidence level on the doubly-charged Higgs boson mass are derived. They vary from 95.5 to 100.2 GeV, depending on the decay mode. Doubly-charged Higgs bosons which couple to electrons would modify the cross section and forward-backward asymmetry of the e(+)e(-) --> e(+)e(-) process. The measurements of these quantities do not deviate from the Standard Model expectations and doubly-charged Higgs bosons with masses up to the order of a TeV are excluded. (C) 2003 Published by Elsevier B.V.
引用
收藏
页码:18 / 28
页数:11
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