Searches for neutral Higgs bosons in extended models

被引：95

作者：

Abdallah, J

Abreu, P

Adam, W

Adzic, P

Albrecht, T

Alderweireld, T

Alemany-Fernandez, R

Allmendinger, T

Allport, PP

Amaldi, U

Amapane, N

Amato, S

Anashkin, E

Andreazza, A

Andringa, S

Anjos, N

Antilogus, P

Apel, WD

Arnoud, Y

Ask, S

Asman, B

Augustin, JE

Augustinus, A

Baillon, P

Ballestrero, A

Bambade, P

Barbier, R

Bardin, D

Barker, GJ

Baroncelli, A

Battaglia, M

Baubillier, M

Becks, KH

Begalli, M

Behrmann, A

Ben-Haim, E

Benekos, N

Benvenuti, A

Berat, C

Berggren, M

Berntzon, L

Bertrand, D

Besancon, M

Besson, N

Bloch, D

Blom, M

Bluj, M

Bonesini, M

Boonekamp, M

Booth, PSL

机构：

[1] Univ Paris 06, CNRS, LPNHE, F-75252 Paris 05, France

[2] Univ Paris 07, CNRS, LPNHE, F-75252 Paris 05, France

[3] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[4] Univ Antwerp, Dept Phys, B-2610 Antwerp, Belgium

[5] VUB, ULB, IIHE, B-1050 Brussels, Belgium

[6] Univ Mons, Fac Sci, B-7000 Mons, Belgium

[7] Univ Athens, Phys Lab, GR-10680 Athens, Greece

[8] Univ Bergen, Dept Phys, N-5007 Bergen, Norway

[9] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[10] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[11] Ctr Brasileiro Pesquisas Fis, BR-22290 Rio De Janeiro, Brazil

[12] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22453 Rio De Janeiro, Brazil

[13] Univ Estado Rio De Janeiro, Inst Fis, Rio De Janeiro, Brazil

[14] Coll France, Phys Corpusculaire Lab, CNRS, F-75231 Paris 05, France

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

[16] ULP, Inst Rech Subatom, CNRS, F-67037 Strasbourg, France

[17] Natl Ctr Sci Res Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece

[18] FZU, Inst Phys, CAS High Energy Phys Div, Prague 180 40, Czech Republic

[19] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[20] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[21] Univ Grenoble 1, Inst Sci Nucl, IN2P3 CNRS, F-38026 St Martin Dheres, France

[22] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[23] Joint Inst Nucl Res, Dubna 101000, Russia

[24] Head Post Off, Moscow 101000, Russia

[25] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[26] Inst Nucl Phys PAN, PL-31142 Krakow, Poland

[27] Univ Min & Met Krakow, Fac Phys & Nucl Tech, PL-30055 Krakow, Poland

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

[29] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England

[30] FCUL, LIP, IST, P-1000 Lisbon, Portugal

[31] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

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

[33] Lund Univ, Dept Phys, S-22363 Lund, Sweden

[34] Univ Lyon 1, IPNL, IN2P3, CNRS, F-69622 Villeurbanne, France

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

[36] INFN MILANO, I-20133 Milan, Italy

[37] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[38] INFN MILANO, I-20126 Milan, Italy

[39] Charles Univ Prague, IPNP MFF, CR-18000 Prague, Czech Republic

[40] NIKHEF, NL-1009 DB Amsterdam, Netherlands

[41] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[42] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

[43] Univ Oviedo, Dipartimento Fis, Oviedo 33007, Spain

[44] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[45] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[46] Ist Nazl Fis Nucl, I-35131 Padua, Italy

[47] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[48] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy

[49] Ist Nazl Fis Nucl, I-00173 Rome, Italy

[50] Univ Roma 3, Dipartimento Fis, I-00146 Rome, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2004年 / 38卷 / 01期

关键词：

D O I：

10.1140/epjc/s2004-02011-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Searches for neutral Higgs bosons produced at LEP in association with Z bosons, in pairs and in the Yukawa process are presented in this paper. Higgs boson decays into b quarks, tau leptons, or other Higgs bosons are considered, giving rise to four-b, four-b+jets, six-b and four-tau final states, as well as mixed modes with b quarks and tau leptons. The whole mass domain kinematically accessible at LEP in these topologies is searched. The analysed data set covers both the LEP1 and LEP2 energy ranges and exploits most of the luminosity recorded by the DELPHI experiment. No convincing evidence for a signal is found, and results are presented in the form of mass-dependent upper bounds on coupling factors (in units of model-independent reference cross-sections) for all processes, allowing interpretation of the data in a large class of models.

引用

页码：1 / 28

页数：28

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