Measurement of the photon structure function Fγ2 with the L3 detector at LEP

被引：7

作者：

Achard, P ^{[1
]}

Adriani, O

Aguilar-Benitez, M

Alcaraz, J

Alemanni, G

Allaby, J

Aloisio, A

Alviggi, MG

Anderhub, H

Andreev, VP

Anselmo, F

Arefiev, A

Azemoon, T

Aziz, T

Bagnaia, P

Bajo, A

Baksay, G

Baksay, L

Baldew, SV

Banerjee, S

Barczyk, A

Barillère, R

Bartalini, P

Basile, M

Batalova, N

Battiston, R

Bay, A

Becattini, F

Becker, U

Behner, F

Bellucci, L

Berbeco, R

Berdugo, J

Berges, P

Bertucci, B

Betev, BL

Biasini, M

Biglietti, M

Biland, A

Blaising, JJ

Blyth, SC

Bobbink, GJ

Böhm, A

Boldizsar, L

Borgia, B

Bottai, S

Bourilkov, D

Bourquin, M

Braccini, S

机构：

[1] Univ Geneva, CH-1211 Geneva, Switzerland

[2] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[3] NIKHEF H, Natl Inst High Energy Phys, NL-1009 DB Amsterdam, Netherlands

[4] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands

[5] Univ Michigan, Ann Arbor, MI 48109 USA

[6] Lab Annecy Le Vieux Phys Particules, LAPP, IN2P3, CNRS, F-74941 Annecy Le Vieux, France

[7] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland

[8] Louisiana State Univ, Baton Rouge, LA 70803 USA

[9] Inst High Energy Phys, Beijing 100039, Peoples R China

[10] Univ Bologna, I-40126 Bologna, Italy

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

[12] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[13] Northeastern Univ, Boston, MA 02115 USA

[14] Inst Atom Phys, R-76900 Bucharest, Romania

[15] Univ Bucharest, R-76900 Bucharest, Romania

[16] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest, Hungary

[17] MIT, Cambridge, MA 02139 USA

[18] Panjab Univ, Chandigarh 160014, India

[19] Univ Debrecen, ATOMKI, H-4010 Debrecen, Hungary

[20] Univ Coll Dublin, Dept Expt Phys, Dublin 4, Ireland

[21] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[22] Univ Florence, I-50125 Florence, Italy

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

[24] World Lab, FBLJA Project, CH-1211 Geneva, Switzerland

[25] Univ Geneva, CH-1211 Geneva, Switzerland

[26] Univ Hamburg, D-22761 Hamburg, Germany

[27] Univ Sci & Technol China, Hefei 230029, Anhui, Peoples R China

[28] Univ Lausanne, CH-1015 Lausanne, Switzerland

[29] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France

[30] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain

[31] Florida Inst Technol, Melbourne, FL 32901 USA

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

[33] Inst Theoret & Expt Phys, Moscow 117259, Russia

[34] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy

[35] Univ Naples Federico II, I-80125 Naples, Italy

[36] Univ Cyprus, Dept Phys, Nicosia, Cyprus

[37] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[38] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands

[39] CALTECH, Pasadena, CA 91125 USA

[40] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[41] Univ Perugia, I-06100 Perugia, Italy

[42] Russian Acad Sci, Inst Nucl Phys, St Petersburg, Russia

[43] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[44] Ist Nazl Fis Nucl, Sez Napoli, I-85100 Potenza, Italy

[45] Unit Potenza, I-85100 Potenza, Italy

[46] Princeton Univ, Princeton, NJ 08544 USA

[47] Univ Calif Riverside, Riverside, CA 92521 USA

[48] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[49] Univ Roma La Sapienza, I-00185 Rome, Italy

[50] Univ Salerno, I-84100 Salerno, Italy

来源：

PHYSICS LETTERS B | 2005年 / 622卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2005.07.028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The e(+)e(-) -> e(+)e(-)hadrons reaction, where one of the two electrons is detected in a low polar-angle calorimeter, is analysed in order to measure the hadronic photon structure function F-2(gamma) The full high-energy and high-luminosity data set, collected with the U detector at centre-of-mass energies 189 GeV <= root s <= 209 GeV, corresponding to an integrated luminosity of 608 pbis used. The Q(2) range 11 GeV2 <= Q(2) <= 34 GeV2 and the x range 0.006 <= x <= 0.556 are considered. The data are compared with recent parton density functions. (c) 2005 Published by Elsevier B.V.

引用

页码：249 / 264

页数：16

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