Di-jet event rates in deep-inelastic scattering at HERA

被引：5

作者：

Adloff, C ^{[1
]}

Aid, S

Anderson, M

Andreev, V

Andrieu, B

Arkadov, V

Arndt, C

Ayyaz, I

Babaev, A

Bähr, J

Bán, J

Baranov, P

Barrelet, E

Barschke, R

Bartel, T

Bassler, U

Beck, M

Behrend, HJ

Beier, C

Belousov, A

Berger, C

Bernardi, G

Bertrand-Coremans, G

Beyer, R

Biddulph, P

Bizot, JC

Borras, K

Boudry, V

Bourov, S

Braemer, A

Braunschweig, W

Brisson, V

Brown, DP

Brückner, W

Bruel, P

Bruncko, D

Brune, C

Bürger, J

Büsser, FW

Buniatian, A

Burke, S

Buschhorn, G

Calvet, D

Campbell, AJ

Carli, T

Charlet, M

Clarke, D

Clerbaux, B

Cocks, S

Contreras, JG

机构：

[1] DESY, Inst Hochenergiephys, Zeuthen, Germany

[2] Swiss Fed Inst Technol, Inst Teilchenphys, Zurich, Switzerland

[3] Univ Zurich, Inst Phys, Zurich, Switzerland

[4] Humboldt Univ, Inst Phys, Berlin, Germany

[5] Berg Univ Wuppertal, Rech Zentrum, Wuppertal, Germany

[6] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany

[7] CINVESTAV, Dept Fis Ap, Merida, Yucatan, Mexico

[8] Rhein Westfal TH Aachen, Inst Phys 1, D-5100 Aachen, Germany

[9] Rhein Westfal TH Aachen, Inst Phys 3, D-5100 Aachen, Germany

[10] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England

[11] Interuniv Inst High Energies ULB VUB, Brussels, Belgium

[12] Univ Instelling Antwerp, B-2610 Antwerp, Belgium

[13] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[14] Inst Phys Nucl, Krakow, Poland

[15] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[16] Univ Calif Davis, IIRPA, Davis, CA 95616 USA

[17] Univ Dortmund, Inst Phys, D-4600 Dortmund, Germany

[18] Joint Nucl Res Inst, Dubna, Russia

[19] CEA Saclay, DAPNIA, DSM, F-91191 Gif Sur Yvette, France

[20] DESY, D-2000 Hamburg, Germany

[21] Univ Hamburg, Inst Expt Phys 2, D-2000 Hamburg, Germany

[22] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[23] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany

[24] Heidelberg Univ, Inst Hochenergiephys, D-6900 Heidelberg, Germany

[25] Univ Kiel, Inst Expt & Angew Phys, Kiel, Germany

[26] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia

[27] Univ Lancaster, Sch Phys & Chem, Lancaster, England

[28] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[29] Queen Mary Univ London, London E1 4NS, England

[30] Lund Univ, Dept Phys, Lund, Sweden

[31] Univ Manchester, Dept Phys & Astron, Manchester, Lancs, England

[32] Univ Aix Marseille 2, IN2P3, CNRS, CPPM, F-13284 Marseille 07, France

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

[34] PN Lebedev Phys Inst, Moscow 117924, Russia

[35] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[36] Univ Paris 11, IN2P3, CNRS, LAL, Orsay, France

[37] Ecole Polytech, CNRS, IN2P3, LPNHE, F-91128 Palaiseau, France

[38] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[39] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

[40] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic

[41] Charles Univ Prague, Nucl Ctr, Prague, Czech Republic

[42] Univ Roma 3, Dipartimento Fis, Rome, Italy

[43] Univ Roma 3, INFN Roma 1, Rome, Italy

[44] Paul Scherrer Inst, Villigen, Switzerland

[45] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2000年 / 13卷 / 03期

关键词：

D O I：

10.1007/s100520000165

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：

Di-jet event rates have been measured for deep-inelastic scattering in the kinematic domain 5 less than or similar to Q(2) less than or similar to 100 GeV2 and 10(-4) less than or similar to xBj less than or similar to 10(-2), and for jet transverse moments squared p(t)(*2) greater than or similar to Q(2). The analysis is based on data collected with the H1 detector at HERA in 1994 corresponding to an integrated luminosity of about 2 pb(-1). Jets are defined using a cone algorithm in the photon-proton centre of mass system requiring jet transverse momenta of at least 5 GeV. The di-jet event rates are shown as a function of Q(2) and x(Bj). Leading order models of point-like interacting photons fail to describe the data. Models which add resolved interacting photons or which implement the colour dipole model give a good description of the di-jet event rate. This is also the case for next-to-leading order calculations including contributions from direct and resolved photons.

引用

页码：415 / 426

页数：12

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