Search for charged Higgs bosons in e+e- collisions at √s=189 GeV

被引：11

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

Baksay, L

Balandras, A

Ball, RC

Banerjee, S

Barczyk, A

Barillère, R

Barone, L

Bartalini, P

Basile, M

Battiston, R

Bay, A

Becattini, F

Becker, U

Behner, F

Bellucci, L

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

Bourquin, M

Braccini, S

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany

[2] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[3] Natl Inst & High Energy Phys, NL-1009 DB Amsterdam, Netherlands

[4] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[5] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands

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

[7] Lab Annecy Le Vieux Phys Particules, LAPP, CNRS, IN2P3, 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] Acad Sinica, Inst High Energy Phys, 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, Bucharest, Romania

[18] Cent Res Inst Phys, H-1525 Budapest, Hungary

[19] Hungarian Acad Sci, H-1525 Budapest, Hungary

[20] MIT, Cambridge, MA 02139 USA

[21] Lajos Kossuth Univ, ATOMKI, H-4010 Debrecen, Hungary

[22] Ist Nazl Fis Nucl, Sezione Firenze, I-50125 Florence, Italy

[23] Univ Florence, I-50125 Florence, Italy

[24] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland

[25] World Lab, FBLJA Project, CH-1211 Geneva, Switzerland

[26] Univ Geneva, CH-1211 Geneva, Switzerland

[27] Univ Sci & Technol China, Anhua 230029, Peoples R China

[28] SEFT, Res Inst High Energy Phys, SF-00014 Helsinki, Finland

[29] Univ Lausanne, CH-1015 Lausanne, Switzerland

[30] Ist Nazl Fis Nucl, Sezione Lecce, I-73100 Lecce, Italy

[31] Univ Lecce, I-73100 Lecce, Italy

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

[33] CIEMAT, E-28040 Madrid, Spain

[34] Ist Nazl Fis Nucl, Sezione Milano, I-20133 Milan, Italy

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

[36] Ist Nazl Fis Nucl, Sezione Napoli, I-80125 Naples, Italy

[37] Univ Naples Federico II, I-80125 Naples, Italy

[38] Univ Cyprus, Dept Nat Sci, Nicosia, Cyprus

[39] Catholic Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[40] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands

[41] CALTECH, Pasadena, CA 91125 USA

[42] Ist Nazl Fis Nucl, Sezione Perugia, I-06100 Perugia, Italy

[43] Univ Perugia, I-06100 Perugia, Italy

[44] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[45] Princeton Univ, Princeton, NJ 08544 USA

[46] Ist Nazl Fis Nucl, Sezione Roma, I-00185 Rome, Italy

[47] Univ Roma La Sapienza, I-00185 Rome, Italy

[48] Inst Phys Nucl, St Petersburg, Russia

[49] Univ Salerno, I-84100 Salerno, Italy

[50] Ist Nazl Fis Nucl, I-84100 Salerno, Italy

来源：

PHYSICS LETTERS B | 1999年 / 466卷 / 01期

关键词：

D O I：

10.1016/S0370-2693(99)01100-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.4 pb(-1). Higgs decays into a charm and a strange quark or into a tau lepton and its associated neutrino are considered. The observed events are consistent with the expectations from Standard Model background processes. A lower limit of 65.5 GeV on the charged Higgs mass is derived at 95% confidence level, independent of the decay branching ratio Br(H+/- --> tau nu). (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：71 / 78

页数：8

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