Search for the glueball candidates f0(1500) and fJ(1710) in γγ collisions

被引：43

作者：

Barate, R ^{[1
]}

Decamp, D

Ghez, P

Goy, C

Lees, JP

Merle, E

Minard, MN

Pietrzyk, B

Alemany, R

Bravo, S

Casado, MP

Chmeissani, M

Crespo, JM

Fernandez, E

Fernandez-Bosman, M

Garrido, L

Graugès, E

Juste, A

Martinez, M

Merino, G

Miquel, R

Mir, LM

Pacheco, A

Riu, I

Ruiz, H

Colaleo, A

Creanza, D

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, Y

Xu, R

Xue, S

Zhang, J

Zhang, L

Zhao, W

机构：

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

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

[3] Ist Nazl Fis Nucl, Sezione Bari, Dipartimento Fis, 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 Blaise Pascal, Phys Corpusculaire Lab, IN2P3, CNRS, F-63177 Clermont Ferrand, France

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

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

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

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

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

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

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

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

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

[16] Univ Innsbruck, Inst Phys Expt, 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] IN2P3, CNRS, Fac Sci Luminy, Ctr Phys Particules, F-13288 Marseille, France

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

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

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

[23] Univ Paris Sud, Lab Accelerateur Lineaire, IN2P3, CNRS, F-91898 Orsay, France

[24] Univ Pisa, Dipartimento Fis, Sezione 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] CEA, DAPNIA, Serv Phys Particules, CE Saclay, F-91191 Gif Sur Yvette, France

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

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

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

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

[33] Ist Nazl Fis Nucl, Sezione Trieste, I-34127 Trieste, Italy

[34] Univ Washington, Seattle, WA 98195 USA

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

[36] Univ Barcelona, Barcelona 08208, Spain

[37] Ist Nazl Fis Nucl, Ctr Siciliano Fis Nucl & Struttura Mat, Sezione Catania, I-95129 Catania, Italy

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

[39] Univ Turin, Ist Fis Gen, I-10125 Turin, Italy

[40] CNR, Ist Cosmo Geofis, I-10126 Turin, Italy

来源：

PHYSICS LETTERS B | 2000年 / 472卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(99)01390-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f(0)(1500) and f(j)(1710) via their decay to pi(+)pi(-). No signal is observed and upper limits to the product of gamma gamma width and pi(+)pi(-) branching ratio of the f(0)(1500) and the f(j)(1710) have been measured to be Gamma (gamma gamma --> f(0)(1500)) . BR(f(0)(1500) --> pi(+)pi(-)) < 0.31 keV and Gamma (gamma gamma --> f(j)(1710)) . BR (f(j)(1710) --> pi(+)pi(-)) < 0.55 keV at 95% confidence level. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：189 / 199

页数：11

共 23 条

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