DIJET CROSS-SECTIONS IN PHOTOPRODUCTION AT HERA

被引：78

作者：

DERRICK, M

KRAKAUER, D

MAGILL, S

MIKUNAS, D

MUSGRAVE, B

REPOND, J

STANEK, R

TALAGA, RL

ZHANG, H

AYAD, R

BARI, G

BASILE, M

BELLAGAMBA, L

BOSCHERINI, D

BRUNI, A

BRUNI, G

BRUNI, P

ROMEO, GC

CASTELLINI, G

CHIARINI, M

CIFARELLI, L

CINDOLO, F

CONTIN, A

CORRADI, M

GIALAS, I

GIUSTI, P

IACOBUCCI, G

LAURENTI, G

LEVI, G

MARGOTTI, A

MASSAM, T

NANIA, R

NEMOZ, C

PALMONARI, F

POLINI, A

SARTORELLI, G

TIMELLINI, R

GARCIA, YZ

ZICHICHI, A

BARGENDE, A

CRITTENDEN, J

DESCH, K

DIEKMANN, B

DOEKER, T

ECKERT, M

FELD, L

FREY, A

GEERTS, M

GEITZ, G

GROTHE, M

机构：

[1] UNIV BOLOGNA, BOLOGNA, ITALY

[2] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[3] UNIV BONN, INST PHYS, BONN, GERMANY

[4] UNIV BRISTOL, HH WILLS PHYS LAB, BRISTOL, AVON, ENGLAND

[5] BROOKHAVEN NATL LAB, UPTON, NY 11973 USA

[6] UNIV CALABRIA, DEPT PHYS, COSENZA, ITALY

[7] IST NAZL FIS NUCL, COSENZA, ITALY

[8] COLUMBIA UNIV, NEVIS LABS, HUDSON, NY USA

[9] INST PHYS NUCL LYON, KRAKOW, POLAND

[10] ACAD MIN & MET, FAC PHYS & NUCL TECH, KRAKOW, POLAND

[11] JAGIELLONIAN UNIV, DEPT PHYS, KRAKOW, POLAND

[12] DESY, W-2000 HAMBURG, GERMANY

[13] DESY, INST HOCHENERGIEPHYS, ZEUTHEN, GERMANY

[14] UNIV FLORENCE, FLORENCE, ITALY

[15] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

[16] IST NAZL FIS NUCL, NAZL FRASCATI LAB, I-00044 FRASCATI, ITALY

[17] UNIV FREIBURG, FAK PHYS, W-7800 FREIBURG, GERMANY

[18] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW, LANARK, SCOTLAND

[19] UNIV HAMBURG, INST EXPTL PHYS 2, W-2000 HAMBURG, GERMANY

[20] UNIV LONDON IMPERIAL COLL SCI & TECHNOL, HIGH ENERGY NUCL PHYS GRP, LONDON, ENGLAND

[21] UNIV IOWA, DEPT PHYS & ASTRON, IOWA CITY, IA 52242 USA

[22] FORSCHUNGSZENTRUM JULICH, INST KERNPHYS, JULICH, GERMANY

[23] KOREA UNIV, SEOUL 136701, SOUTH KOREA

[24] LOUISIANA STATE UNIV, DEPT PHYS & ASTRON, BATON ROUGE, LA 70803 USA

[25] UNIV AUTONOMA MADRID, DEPT FIS TEOR, MADRID, SPAIN

[26] UNIV MANITOBA, DEPT PHYS, WINNIPEG, MB R3T 2N2, CANADA

[27] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ, CANADA

[28] MOSCOW ENGN PHYS INST, MOSCOW 115409, RUSSIA

[29] MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, MOSCOW, RUSSIA

[30] NIKHEF H, 1009 DB AMSTERDAM, NETHERLANDS

[31] UNIV AMSTERDAM, AMSTERDAM, NETHERLANDS

[32] OHIO STATE UNIV, DEPT PHYS, COLUMBUS, OH 43210 USA

[33] UNIV OXFORD, DEPT PHYS, OXFORD, ENGLAND

[34] UNIV PADUA, DIPARTIMENTO FIS, PADUA, ITALY

[35] IST NAZL FIS NUCL, PADUA, ITALY

[36] PENN STATE UNIV, DEPT PHYS, UNIVERSITY PK, PA 16802 USA

[37] UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY

[38] IST NAZL FIS NUCL, ROME, ITALY

[39] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[40] UNIV CALIF SANTA CRUZ, SANTA CRUZ, CA 95064 USA

[41] UNIV GESAMTHSCH SIEGEN, FACHBEREICH PHYS, W-5900 SIEGEN, GERMANY

[42] TEL AVIV UNIV, SCH PHYS, TEL AVIV, ISRAEL

[43] UNIV TOKYO, INST NUCL STUDY, TOKYO, JAPAN

[44] TOKYO METROPOLITAN UNIV, DEPT PHYS, TOKYO, JAPAN

[45] UNIV TURIN, DIPARTIMENTO FIS SPERIMENTALE, TURIN, ITALY

[46] IST NAZL FIS NUCL, I-10125 TURIN, ITALY

[47] UNIV TURIN, FAC SCI 2, ALESSANDRIA, ITALY

[48] IST NAZL FIS NUCL, ALESSANDRIA, ITALY

[49] UNIV TORONTO, DEPT PHYS, TORONTO, ON, CANADA

[50] UCL, DEPT PHYS & ASTRON, LONDON, ENGLAND

来源：

PHYSICS LETTERS B | 1995年 / 348卷 / 3-4期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(95)00275-P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Dijet production by almost real photons has been studied at HERA with the ZEUS detector. Jets have been identified using the cone algorithm, A cut on x(gamma)(OBS), the fraction of the photon energy participating in the production of the two jets of highest transverse energy, is used to define cross sections sensitive to the parton distributions in the proton and in the photon, The oss dependence of the dijet cross sections on pseudorapidity has been measured for x(gamma)(OBS)greater than or equal to 0.75 and x(gamma)(OBS)<0.75. The former is sensitive to the gluon momentum density in the proton. The latter is sensitive to the gluon in the photon. The cross sections are corrected for detector acceptance and compared to leading order QCD calculations.

引用

页码：665 / 680

页数：16

共 50 条

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Breitweg J.
Derrick M.
Krakauer D.
Magill S.
Mikunas D.
Musgrave B.
Repond J.
Stanek R.
Talaga R.L.
Yoshida R.
Zhang H.
Mattingly M.C.K.
Anselmo F.
Antonioli P.
Bari G.
Basile M.
Bellagamba L.
Boscherini D.
Bruni A.
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Cara Romeo G.
Castellini G.
Cifarelli L.
Cindolo F.
Contin A.
Corradi M.
de Pasquale S.
Gialas I.
Giusti P.
Iacobucci G.
Laurenti G.
Levi G.
Margotti A.
Massam T.
Nania R.
Palmonari F.
Pesci A.
Polini A.
Ricci F.
Sartorelli G.
Zamora Garcia Y.
Zichichi A.
Amelung C.
Bornheim A.
Brock I.
Coböken K.
Crittenden J.
Deffner R.
Eckert M.
Feld L.
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Krakauer, D
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Repond, J
Stanek, R
Talaga, RL
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Zhang, H
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