Measurement of internal jet structure in dijet production in deep-inelastic scattering at HERA

被引：44

作者：

Adloff, C ^{[1
]}

Andreev, V

Andrieu, B

Arkadov, V

Astvatsatourov, A

Ayyaz, I

Babaev, A

Bähr, J

Baranov, P

Barrelet, E

Bartel, W

Bassler, U

Bate, P

Beglarian, A

Behnke, O

Behrend, HJ

Beier, C

Belousov, A

Berger, C

Bernardi, G

Berndt, T

Bertrand-Coremans, G

Biddulph, P

Bizot, JC

Boudry, V

Braunschweig, W

Brisson, V

Brown, DP

Brückner, W

Bruel, P

Bruncko, D

Bürger, J

Büsser, FW

Buniatian, A

Burke, S

Buschhorn, G

Calvet, D

Campbell, AJ

Carli, T

Chabert, E

Charlet, M

Clarke, D

Clerbaux, B

Cocks, S

Contreras, JG

Cormack, C

Coughlan, JA

Cousinou, MC

Cox, BE

Cozzika, G

机构：

[1] Berg Univ Gesamthsch Wuppertal, Fachbereich Phys, Wuppertal, Germany

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

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

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

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

[6] Univ Instelling Antwerp, B-2610 Wilrijk, Belgium

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

[8] Inst Nucl Phys, Krakow, Poland

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

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

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

[12] Joint Inst Nucl Res, Dubna, Russia

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

[14] DESY, D-2000 Hamburg, Germany

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

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

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

[18] Univ Heidelberg, Inst Hochenergiephys, Heidelberg, Germany

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

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

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

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

[23] Univ London Queen Mary & Westfield Coll, London E1 4NS, England

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

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

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

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

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

[29] Max Planck Inst Phys, D-80805 Munich, Germany

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

[31] Ecole Polytech, LPNHE, CNRS, IN2P3, Palaiseau, France

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

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

[34] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

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

[36] INFN Roma 1, Rome, Italy

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

[38] Paul Scherrer Inst, Villigen, Switzerland

[39] DESY, Inst Hochenergiephys, Zeuthen, Germany

[40] ETH Zurich, Inst Teilchenphys, Zurich, Switzerland

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

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

[43] Berg Univ Gesamthsch Wuppertal, Rechenzentrum, Wuppertal, Germany

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

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

来源：

NUCLEAR PHYSICS B | 1999年 / 545卷 / 1-3期

关键词：

D O I：

10.1016/S0550-3213(99)00118-2

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：

Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies E-T,E-Breit > 5 GeV are selected in the Breit frame employing k(perpendicular to) and cone jet algorithms. In the kinematic region of squared momentum transfers 10 < Q(2) less than or similar to 120 GeV2 and Bjorken-x values 2 x 10(-4) less than or similar to x(Bj) less than or similar to 8 x 10(-3), jet shapes and subjet multiplicities are measured as a function of a resolution parameter. Distributions of both observables are corrected for detector effects and presented as functions of the transverse jet energy and jet pseudo-rapidity, Dependences of the jet shape and the average number of subjets on the transverse energy and the pseudo-rapidity of the jet are observed. With increasing transverse jet energies and decreasing pseudo-rapidities, i.e, towards the photon hemisphere. the jets are more collimated. QCD models give a fair description of the data. (C) 1999 Elsevier Science B.V.

引用

页码：3 / 20

页数：18

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