Measurement of the hadronic photon structure function at LEP 1 for ⟨Q2⟩ values between 9.9 and 284 GeV2

被引：40

作者：

Barate, R ^{[1
]}

Decamp, D

Ghez, P

Goy, C

Lees, JP

Merle, E

Minard, MN

Pietrzyk, B

Alemany, R

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

Park, IC

Riu, I

Colaleo, A

Creanza, D

de Palma, M

Gelao, G

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

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

[3] Ist Nazl Fis Nucl, Sez 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] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[33] Univ Washington, Seattle, WA 98195 USA

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

来源：

PHYSICS LETTERS B | 1999年 / 458卷 / 01期

关键词：

D O I：

10.1016/S0370-2693(99)00559-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Inclusive gamma*gamma interactions to hadronic final states where one scattered electron or positron is detected in the electromagnetic calorimeters have been studied in the LEP 1 data taken by ALEPH from 1991 to 1995. The event sample has been used to measure the hadronic structure function of the photon F-2(gamma) in three bins with < Q(2)> of 9.9, 20.7 and 284 GeV2. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：152 / 166

页数：15

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