Search for charged Higgs bosons in e+e- collisions at centre-of-mass energies from 130 to 172 GeV

被引：20

作者：

Barate, R ^{[1
]}

Buskulic, D

Decamp, D

Ghez, P

Goy, C

Lees, JP

Lucotte, A

Minard, MN

Nief, JY

Pietrzyk, B

Casado, MP

Chmeissani, M

Comas, P

Crespo, JM

Delfino, M

Fernandez, E

Fernandez-Bosman, M

Garrido, L

Juste, A

Martinez, M

Merino, G

Miquel, R

Mir, LM

Padilla, C

Park, IC

Pascual, A

Perlas, JA

Riu, I

Sanchez, F

Colaleo, A

Creanza, D

de Palma, M

Gelao, G

Iaselli, G

Maggi, G

Maggi, M

Marinelli, N

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

机构：

[1] IN2P3, CNRS, Phys Particules Lab LAPP, F-74019 Annecy Le Vieux, France

[2] Univ Autonoma Barcelona, Inst Fis Altes Energies, Bellaterra 08193, Barcelona, Spain

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

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

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

[6] Univ Clermont Ferrand, Phys Corpusculaire Lab, IN2P3, CNRS, F-63177 Aubiere, France

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

[8] Nucl Res Ctr Demokritos NRCD, Athens, Greece

[9] Ecole Polytech, CNRS, Lab Phys Nucl & Hautes Energies, IN2P3, F-91128 Palaiseau, France

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

[11] Florida State Univ, Supercomp Computat Res Inst, Tallahassee, FL 32306 USA

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

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

[14] Univ Heidelberg, Inst Hochenergiephys, D-69120 Heidelberg, Germany

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

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

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

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

[19] Fac Sci Luminy, Ctr Phys Particules, IN2P3, CNRS, F-13288 Marseille, France

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

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

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

[23] Univ Paris 11, Accelerateur Lineaire Lab, IN2P3, CNRS, F-91405 Orsay, France

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

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

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

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

[28] Univ Barcelona, E-08208 Barcelona, Spain

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

[30] Univ Turin, Ist Fis Gen, Turin, Italy

[31] CNR, Ist Cosmogeofis, I-10133 Turin, Italy

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

[33] CENS, CEA, Serv Phys Particules, DAPNIA, F-91191 Gif Sur Yvette, France

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

[35] Univ Sheffield, Dept Phys, Sheffield S3 7RH, S Yorkshire, England

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

[37] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

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

[39] Univ Washington, Seattle, WA 98195 USA

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

来源：

PHYSICS LETTERS B | 1998年 / 418卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)01490-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb(-1), are analysed In a search for pair-produced charged Higgs bosons H+/-. Three analyses are employed to select the tau(+)nu(tau)tau(-)<(nu)over bar (tau)>, <C(S)over bar tau>(-)<(nu)over bar (tau)> and c (s) over bar s (c) over bar final states. No evidence for a signal is found. Mass limits are set as a function of the branching fraction B(tau nu) for H+/--->tau nu. Charged Higgs bosons with masses below 52 GeV/c(2) are excluded at 95% C.L. independently of B(tau nu) thus significantly improving on existing limits. (C) 1998 Published by Elsevier Science B.V.

引用

页码：419 / 429

页数：11

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