Search for a Higgs boson decaying into two photons in e+e- interactions at √s=189 GeV

被引:13
作者
Acciarri, M
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
Bajo, A
Baksay, L
Balandras, A
Baldew, SV
Banerjee, S
Banerjee, S
Barczyk, A
Barillère, R
Bartalini, P
Basile, M
Battiston, R
Bay, A
Becattini, F
Becker, U
Behner, F
Bellucci, L
Berbeco, R
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
机构
[1] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
[2] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy
[3] Univ Naples Federico II, I-80125 Naples, Italy
[4] Inst Theoret & Expt Phys, Moscow 117259, Russia
[5] Univ Cyprus, Dept Nat Sci, Nicosia, Cyprus
[6] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands
[7] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands
[8] CALTECH, Pasadena, CA 91125 USA
[9] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy
[10] Univ Perugia, I-06100 Perugia, Italy
[11] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[12] Princeton Univ, Princeton, NJ 08544 USA
[13] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy
[14] Univ Roma La Sapienza, I-00185 Rome, Italy
[15] Russian Acad Sci, Inst Nucl Phys, St Petersburg, Russia
[16] Univ Potenza, I-85100 Potenza, Italy
[17] Univ Salerno, I-84100 Salerno, Italy
[18] Ist Nazl Fis Nucl, I-84100 Salerno, Italy
[19] Univ Calif San Diego, La Jolla, CA 92093 USA
[20] Univ Santiago, Dept Fis Particulas Elementales, E-15706 Santiago, Spain
[21] Bulgarian Acad Sci, Cent Lab Mechatron & Instrumentat, BU-1113 Sofia, Bulgaria
[22] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany
[23] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany
[24] NIKHEF H, NL-1009 DB Amsterdam, Netherlands
[25] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands
[26] Univ Michigan, Ann Arbor, MI 48109 USA
[27] Lab Annecy Le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France
[28] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
[29] Louisiana State Univ, Baton Rouge, LA 70803 USA
[30] Inst High Energy Phys, Beijing 100039, Peoples R China
[31] Humboldt Univ, D-10099 Berlin, Germany
[32] Univ Bologna, I-40126 Bologna, Italy
[33] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy
[34] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[35] Northeastern Univ, Boston, MA 02115 USA
[36] Inst Atom Phys, R-76900 Bucharest, Romania
[37] Univ Bucharest, R-76900 Bucharest, Romania
[38] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest 114, Hungary
[39] MIT, Cambridge, MA 02139 USA
[40] Univ Debrecen, ATOMKI, H-4010 Debrecen, Hungary
[41] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy
[42] Univ Florence, I-50125 Florence, Italy
[43] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland
[44] World Lab, FBLJA Project, CH-1211 Geneva 23, Switzerland
[45] Univ Geneva, CH-1211 Geneva 4, Switzerland
[46] Chinese Univ Sci & Technol, USTC, Hefei 230029, Anhui, Peoples R China
[47] SEFT, Res Inst High Energy Phys, SF-00014 Helsinki, Finland
[48] Univ Lausanne, CH-1015 Lausanne, Switzerland
[49] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy
[50] Univ Lecce, I-73100 Lecce, Italy
关键词
D O I
10.1016/S0370-2693(00)00955-2
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 GeV, All decay modes of the Z are considered. No signal is observed and limits on the branching fraction of the Higgs boson decay into two photons as a function of the Higgs mass are derived assuming a Standard model production rate. A lower limit on the mass of a fermiophobic Higgs is set at 94.9 GeV at 95% confidence level. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:115 / 124
页数:10
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