Search for charged Higgs bosons in a+e- collisions at energies up to √s=209 GeV

被引：84

作者：

Heister, A ^{[1
]}

Schael, S

Barate, R

Brunelière, R

De Bonis, I

Decamp, D

Goy, C

Jezequel, S

Lees, JP

Martin, F

Merle, E

Minard, MN

Pietrzyk, B

Boix, G

Bravo, S

Casado, MP

Chmeissani, M

Crespo, JM

Fernandez, E

Fernandez-Bosman, M

Garrido, L

Graugés, E

Lopez, J

Martinez, M

Merino, G

Pacheco, A

Paneque, D

Ruiz, H

Colaleo, A

Creanza, D

De Filippis, N

de Palma, M

Iaselli, G

Maggi, G

Maggi, M

Nuzzo, S

Ranieri, A

Raso, G

Ruggieri, F

Selvaggi, G

Silvestris, L

Tempesta, P

Tricomi, A

Zito, G

Huang, X

Lin, J

Ouyang, Q

Wang, T

Xie, I

Xu, R

机构：

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

[2] IN2P3, CNRS, LAPP, F-74019 Annecy Le Vieux, France

[3] Univ Autonoma Barcelona, Inst Fs Altes Energies, E-08193 Barcelona, Spain

[4] Ist Nazl Fis Nucl, Dipartimento Fis, Sez Bari, I-70126 Bari, Italy

[5] Acad Sinica, Inst High Energy Phys, Beijing, Peoples R China

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

[7] Univ Clermont Ferrand, IN2P3, CNR, Phys Corpusculaire Lab, F-63177 Clermont Ferrand, France

[8] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[9] Democritos Nucl Res Ctr, GR-15310 Athens, Greece

[10] Ecole Polytech, IN2P3, CNRS, Lab Leprince Ringuet, F-91128 Palaiseau, France

[11] Univ Florence, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[12] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[13] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[14] Haverford Coll, Dept Phys, Haverford, PA 19041 USA

[15] Univ Heidelberg, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[16] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2BZ, England

[17] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[18] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

[19] Catholic Univ Louvain, Dept Phys, Inst Nucl Phys, B-1348 Louvain, Belgium

[20] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[21] Univ Aix Marseille 2, IN2P3, CNRS, Ctr Phys Particules Marseille, F-13288 Marseille, France

[22] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[23] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[24] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany

[25] Univ Paris 11, IN2P3, CNRS, Lab Accelerateur Lineaire, F-91898 Orsay, France

[26] Ist Nazl Fis Nucl, Dipartimento Fis, Sez Pisa, I-56010 Pisa, Italy

[27] Scuola Normale Super Pisa, I-56010 Pisa, Italy

[28] Univ London, Royal Holloway & Bedford New Coll, Dept Phys, Egham TW20 0EX, Surrey, England

[29] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England

[30] CEA Saclay, DAPNIA, Serv Phys Particules, F-91191 Gif Sur Yvette, France

[31] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[32] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany

[33] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy

[34] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy

[35] Univ Washington, Seattle, WA 98195 USA

[36] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[37] ETH Honggerberg, Inst Particle Phys, CH-8093 Zurich, Switzerland

[38] CERN, CH-1211 Geneva 23, Switzerland

[39] Dipartimento Fis, I-95129 Catania, Italy

[40] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy

[41] CNR, Ist Cosmogeofis, Turin, Italy

[42] Univ Barcelona, Barcelona 08208, Spain

[43] Univ Palermo, Dipartimento Fis & Tecnol Relat, Palermo, Italy

[44] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[45] Univ Montpellier 2, Grp Astroparticules Montpellier, F-34095 Montpellier, France

来源：

PHYSICS LETTERS B | 2002年 / 543卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(02)02380-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for charged Higgs bosons produced in pairs is performed with data collected at centre-of-mass energies ranging from 189 to 209 GeV by ALEPH at LEP, corresponding to a total luminosity of 629 pb(-1). The three final states tau(+)nu(tau)tau(-)(nu) over bar (tau), c (s) over bar tau- (nu) over bar (tau) and c (s) over bars (c) over bar are considered. No evidence for a signal is found and lower limits are set on the mass m(H)+/- as a function of the branching fraction B(H+ --> tau(+)nu(tau)). In the framework of a two-Higgs-doublet model, and assuming B(H+ --> tau(+)nu(tau)) + B(H+ --> c (s) over bar) = 1, charged Higgs bosons with masses below 79.3 GeV/c(2) are excluded at 95% confidence level independently of the branching ratios. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 13

页数：13

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