Dijet photoproduction at HERA and the structure of the photon

被引：70

作者：

Chekanov, S

Derrick, M

Krakauer, D

Magill, S

Musgrave, B

Pellegrino, A

Repond, J

Yoshida, R

Mattingly, MCK

Antonioli, P

Bari, G

Basile, M

Bellagamba, L

Boscherini, D

Bruni, A

Bruni, G

Romeo, GC

Cifarelli, L

Cindolo, F

Contin, A

Corradi, M

De Pasquale, S

Giusti, P

Iacobucci, G

Levi, G

Margotti, A

Massam, T

Nania, R

Palmonari, F

Pesci, A

Sartorelli, G

Zichichi, A

Aghuzumtsyan, G

Bartsch, D

Brock, I

Crittenden, J

Goers, S

Hartmann, H

Hilger, E

Irrgang, P

Jakob, HP

Kappes, A

Katz, UF

Kerger, R

Kind, O

Paul, E

Rautenberg, J

Renner, R

Schnurbusch, H

Stifutkin, A

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Andrews Univ, Berrien Springs, MI 49104 USA

[3] Univ Bologna, Bologna, Italy

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

[5] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[6] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[7] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy

[8] Ist Nazl Fis Nucl, Cosenza, Italy

[9] Chonnam Natl Univ, Kwangju, South Korea

[10] Columbia Univ, Nevis Labs, Irvington, NY 10027 USA

[11] Inst Nucl Phys, Krakow, Poland

[12] Univ Min & Met Krakow, Fac Phys & Nucl Techniques, Krakow, Poland

[13] Jagiellonian Univ, Dept Phys, Krakow, Poland

[14] DESY, D-2000 Hamburg, Germany

[15] DESY Zeuthen, Zeuthen, Germany

[16] Univ Florence, Florence, Italy

[17] Ist Nazl Fis Nucl, I-50125 Florence, Italy

[18] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[19] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland

[20] Univ Hamburg, Inst Expt Phys 1, Hamburg, Germany

[21] Univ Hamburg, Inst Expt Phys 2, Hamburg, Germany

[22] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England

[23] Forschungszentrum Julich, Inst Kernphys, D-5170 Julich, Germany

[24] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan

[25] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan

[26] Korea Univ, Seoul 136701, South Korea

[27] Kyungpook Natl Univ, Taegu 702701, South Korea

[28] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain

[29] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[30] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan

[31] Moscow MV Lomonosov State Univ, Inst Phys Nucl, Moscow, Russia

[32] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[33] Univ Amsterdam, Amsterdam, Netherlands

[34] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[35] Univ Oxford, Dept Phys, Oxford, England

[36] Univ Padua, Dipartimento Fis, Padua, Italy

[37] Ist Nazl Fis Nucl, Padua, Italy

[38] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[39] Polytech Univ, Sagamihara, Kanagawa, Japan

[40] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[41] Ist Nazl Fis Nucl, Rome, Italy

[42] Rutherford Appleton Lab, Didcot, Oxon, England

[43] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[44] Seoul Natl Univ, Seoul, South Korea

[45] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany

[46] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel

[47] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan

[48] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[49] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy

[50] Ist Nazl Fis Nucl, I-10125 Turin, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2002年 / 23卷 / 04期

关键词：

D O I：

10.1007/s100520200936

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The dijet cross section in photoproduction ha's been measured with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb(-1). The events were required to have a virtuality of the incoming photon, Q(2), of less than 1 GeV2 and a photon-proton centre-of-mass energy in the range 131 < W-yp < 277 GeV. Each event contains at least two jets satisfying transverse-energy requirements of E-T(jet1) > 14 GeV and E-T(jet2) > 11 GeV and pseudorapidity requirements of -1 < eta(jet1,2) < 2.4. The measurements arc compared to next-to-loading-order QCD predictions. The data show particular sensitivity to the density of partons in the photon, allowing the validity of the current parameterisations to be tested.

引用

页码：615 / 631

页数：17

共 50 条

[21] DIJET CROSS-SECTIONS IN PHOTOPRODUCTION AT HERA
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
PHYSICS LETTERS B, 1995, 348 (3-4) : 665 - 680
[22] BFKL gluon dynamics and resolved photon processes in D* and dijet associated photoproduction at HERA
Baranov, SP
Zotov, NP
PHYSICS LETTERS B, 2000, 491 (1-2) : 111 - 116
[23] Measurement of dijet photoproduction for events with a leading neutron at HERA
Chekanov, S.
Derrick, M.
Magill, S.
Musgrave, B.
Nicholass, D.
Repond, J.
Yoshida, R.
Mattingly, M. C. K.
Antonioli, P.
Bari, G.
Bellagamba, L.
Boscherini, D.
Bruni, A.
Bruni, G.
Cindolo, F.
Corradi, M.
Iacobucci, G.
Margotti, A.
Nania, R.
Polini, A.
Antonelli, S.
Basile, M.
Bindi, M.
Cifarelli, L.
Contin, A.
De Pasquale, S.
Sartorelli, G.
Zichichi, A.
Bartsch, D.
Brock, I.
Hartmann, H.
Hilger, E.
Jakob, H. -P.
Juengst, M.
Nuncio-Quiroz, A. E.
Paul, E.
Samson, U.
Schoenberg, V.
Shehzadi, R.
Wlasenko, M.
Morris, J. D.
Kaur, M.
Kaur, P.
Singh, I.
Capua, M.
Fazio, S.
Mastroberardino, A.
Schioppa, M.
Susinno, G.
Tassi, E.
NUCLEAR PHYSICS B, 2010, 827 (1-2) : 1 - 33
[24] Measurement of dijet photoproduction at high transverse energies at HERA
Breitweg J.
Chekanov S.
Derrick M.
Krakauer D.
Magill S.
Musgrave B.
Pellegrino A.
Repond J.
Stanek R.
Yoshida R.
Mattingly M.C.K.
Abbiendi G.
Anselmo F.
Antonioli P.
Bari G.
Basile M.
Bellagamba L.
Boscherini D.
Bruni A.
Bruni G.
Cara Romeo G.
Castellini G.
Cifarelli L.
Cindolo F.
Contin A.
Coppola N.
Corradi M.
de Pasquale S.
Giusti P.
Iacobucci G.
Laurenti G.
Levi G.
Margotti A.
Massam T.
Nania R.
Palmonari F.
Pesci A.
Polini A.
Sartorelli G.
Zamora Garcia Y.
Zichichi A.
Amelung C.
Bornheim A.
Brock I.
Coböken K.
Crittenden J.
Deffner R.
Eckert M.
Hartmann H.
Heinloth K.
The European Physical Journal C - Particles and Fields, 1999, 11 (1): : 35 - 50
[25] Measurement of dijet photoproduction at high transverse energies at HERA
Breitweg, J
Chekanov, S
Derrick, M
Krakauer, D
Magill, S
Musgrave, B
Pellegrino, A
Repond, J
Stanek, R
Yoshida, R
Mattingly, MCK
Abbiendi, G
Anselmo, F
Antonioli, P
Bari, G
Basile, M
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Romeo, GC
Castellini, G
Cifarelli, L
Cindolo, F
Contin, A
Coppola, N
Corradi, M
De Pasquale, S
Giusti, P
Iacobucci, G
Laurenti, G
Levi, G
Margotti, A
Massam, T
Nania, R
Palmonari, F
Pesci, A
Polini, A
Sartorelli, G
Garcia, YZ
Zichichi, A
Amelung, C
Bornheim, A
Brock, I
Coböken, K
Crittenden, J
Deffner, R
Eckert, M
Hartmann, H
Heinloth, K
EUROPEAN PHYSICAL JOURNAL C, 1999, 11 (01): : 35 - 50
[26] Dijet angular distributions in direct and resolved photoproduction at HERA
Derrick, M
Krakauer, D
Magill, S
Mikunas, D
Musgrave, B
Okrasinski, JR
Repond, J
Stanek, R
Talaga, RL
Zhang, H
Mattingly, MCK
Bari, G
Basile, M
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Bruni, P
Romeo, GC
Castellini, G
Cifarelli, L
Cindolo, F
Contin, A
Corradi, M
Gialas, I
Giusti, P
Iacobucci, G
Laurenti, G
Levi, G
Margotti, A
Massam, T
Nania, R
Palmonari, F
Polini, A
Sartorelli, G
Garcia, YZ
Zichichi, A
Amelung, C
Bornheim, A
Crittenden, J
Deffner, R
Doeker, T
Eckert, M
Feld, L
Frey, A
Geerts, M
Grothe, M
Hartmann, H
Heinloth, K
Heinz, L
PHYSICS LETTERS B, 1996, 384 (1-4) : 401 - 413
[27] Unintegrated gluon distributions in D*± and dijet associated photoproduction at HERA
Lipatov, A. V.
Zotov, N. P.
EUROPEAN PHYSICAL JOURNAL C, 2006, 47 (03): : 643 - 653
[28] Unintegrated gluon distributions in D*± and dijet associated photoproduction at HERA
A.V. Lipatov
N.P. Zotov
The European Physical Journal C - Particles and Fields, 2006, 47 : 643 - 653
[29] Measurement of dijet cross sections with leading neutrons in photoproduction at HERA
Bunyatyan, A
PHOTON 2000, 2001, 571 : 231 - 236
[30] High-mass dijet cross sections in photoproduction at HERA
Chekanov, S
Derrick, M
Krakauer, D
Magill, S
Musgrave, B
Pellegrino, A
Repond, J
Yoshida, R
Mattingly, MCK
Antonioli, P
Bari, G
Basile, M
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Romeo, GC
Cifarelli, L
Cindolo, F
Contin, A
Corradi, M
De Pasquale, S
Giusti, P
Iacobucci, G
Levi, G
Margotti, A
Massam, T
Nania, R
Palmonari, F
Pesci, A
Sartorelli, G
Zichichi, A
Aghuzumtsyan, G
Bartsch, D
Brock, I
Crittenden, J
Goers, S
Hartmann, H
Hilger, E
Irrgang, P
Jakob, HP
Kappes, A
Katz, UF
Kerger, R
Kind, O
Paul, E
Rautenberg, J
Renner, R
Schnurbusch, H
Stifutkin, A
PHYSICS LETTERS B, 2002, 531 (1-2) : 9 - 27

← 1 2 3 4 5 →