Inclusive D*± meson and associated dijet production in deep-inelastic scattering at HERA

被引：25

作者：

Aktas, A. ^{[1
]}

Andreev, V.

Anthonis, T.

Antunovic, B.

Aplin, S.

Asmone, A.

Astvatsatourov, A.

Babaev, A.

Backovic, S.

Baghdasaryan, A.

Baranov, P.

Barrelet, E.

Bartel, W.

Baudrand, S.

Beckingham, M.

Begzsuren, K.

Behnke, O.

Behrendt, O.

Belousov, A.

Berger, N.

Bizot, J. C.

Boenig, M.-O.

Boudry, V.

Bozovic-Jelisavcic, I.

Bracinik, J.

Brandt, G.

Brinkmann, M.

Brisson, V.

Bruncko, D.

Buesser, F. W.

Bunyatyan, A.

Buschhorn, G.

Bystritskaya, L.

Campbell, A. J.

Avila, K. B. Cantun

Cassol-Brunner, F.

Cerny, K.

Cerny, V.

Chekelian, V.

Cholewa, A.

Contreras, J. G.

Coughlan, J. A.

Cozzika, G.

Cvach, J.

Dainton, J. B.

Daum, K.

de Boer, Y.

Delcourt, B.

Del Degan, M.

De Roeck, A.

机构：

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

[2] Vinca Inst Nucl Sci, Belgrade, Serbia

[3] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[4] Univ Antwerp, Inter Univ Inst High Energies ULB VUB, Antwerp, Belgium

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

[6] Inst Nucl Phys, Krakow, Poland

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

[8] Joint Inst Nucl Res, Dubna, Russia

[9] CE Saclay, DAPNIA, DSM, CEA, Gif Sur Yvette, France

[10] DESY, D-2000 Hamburg, Germany

[11] Univ Hamburg, Inst Expt Phys, Hamburg, Germany

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

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

[14] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany

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

[16] Univ Lancaster, Dept Phys, Lancaster, England

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

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

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

[20] Univ Mediterranee, CNRS, CPPM, IN2P3, Marseille, France

[21] CINVESTAV, Dept Fis Aplicada, Merida, Yucatan, Mexico

[22] CINVESTAV, Dept Fis, Merida, Yucatan, Mexico

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

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

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

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

[27] Ecole Polytech, CNRS, LLR, IN2P3, F-91128 Palaiseau, France

[28] Univ Paris 06, LPNHE, Paris, France

[29] Univ Paris 07, CNRS, IN2P3, Paris, France

[30] Univ Montenegro, Fac Sci, Podgorica, Montenegro

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

[32] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[33] Univ Roma Tre, Dipartimento Fis, Rome, Italy

[34] INFN Roma 3, Rome, Italy

[35] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[36] Mongolian Acad Sci, Inst Phys & Technol, Ulaanbaatar, Mongolia

[37] Paul Scherrer Inst, Villigen, Switzerland

[38] Univ Wuppertal, Fachberich C, Wuppertal, Germany

[39] Yerevan Phys Inst, Yerevan 375036, Armenia

[40] DESY, Zeuthen, Germany

[41] ETH, Inst Teilchenphys, Zurich, Switzerland

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

[43] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[44] Univ Wuppertal, Rechenzentrum, Wuppertal, Germany

[45] Safarik Univ, Kosice, Slovakia

[46] CERN, Geneva, Switzerland

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

[48] Comenius Univ, Bratislava, Slovakia

[49] Univ Hamburg, Hamburg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2007年 / 51卷 / 02期

关键词：

D O I：

10.1140/epjc/s10052-007-0296-5

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：

Inclusive D*(+/-) production is measured in deep-inelastic ep scattering at HERA with the H1 detector. In addition, the production of dijets in events with a D*(+/-) meson is investigated. The analysis covers values of photon virtuality 2 <= Q(2) <= 100 GeV2 and of inelasticity 0.05 <= y <= 0.7. Differential cross sections are measured as a function of Q(2) and x and of various D*(+/-) meson and jet observables. Within the experimental and theoretical uncertainties all measured cross sections are found to be adequately described by next-to-leading order (NLO) QCD calculations, based on the photon - gluon fusion process and DGLAP evolution, without the need for an additional resolved component of the photon beyond what is included at NLO. A reasonable description of the data is also achieved by a prediction based on the CCFM evolution of partons involving the kT- unintegrated gluon distribution of the proton.

引用

页码：271 / 287

页数：17

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