Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA

被引：9

作者：

Aaron, F. D. ^{[1
,49
]}

Alexa, C. ^{[1
]}

Andreev, V. ^{[26
]}

Backovic, S. ^{[31
]}

Baghdasaryan, A. ^{[40
]}

Baghdasaryan, S. ^{[40
]}

Barrelet, E. ^{[30
]}

Bartel, W. ^{[12
]}

Begzsuren, K. ^{[37
]}

Belousov, A. ^{[26
]}

Belov, P. ^{[12
]}

Bizot, J. C. ^{[28
]}

Boudry, V. ^{[29
]}

Bozovic-Jelisavcic, I. ^{[3
]}

Bracinik, J. ^{[4
]}

Brandt, G. ^{[12
]}

Brinkmann, M. ^{[12
]}

Brisson, V. ^{[28
]}

Britzger, D. ^{[12
]}

Bruncko, D. ^{[17
]}

Bunyatyan, A. ^{[14
,40
]}

Buschhorn, G. ^{[27
]}

Bystritskaya, L. ^{[25
]}

Campbell, A. J. ^{[12
]}

Cantun Avila, K. B. ^{[23
]}

Ceccopieri, F. ^{[5
,6
]}

Cerny, K. ^{[33
]}

Cerny, V. ^{[17
,48
]}

Chekelian, V. ^{[27
]}

Contreras, J. G. ^{[23
]}

Coughlan, J. A. ^{[7
]}

Cvach, J. ^{[32
]}

Dainton, J. B. ^{[19
]}

Daum, K. ^{[39
,45
]}

Delcourt, B. ^{[28
]}

Delvax, J. ^{[5
,6
]}

De Wolf, E. A. ^{[5
,6
]}

Diaconu, C. ^{[22
]}

Dobre, M. ^{[13
]}

Dodonov, V. ^{[14
]}

Dossanov, A. ^{[27
]}

Dubak, A. ^{[27
,31
]}

Eckerlin, G. ^{[12
]}

Egli, S. ^{[38
]}

Eliseev, A. ^{[26
]}

Elsen, E. ^{[12
]}

Favart, L. ^{[5
,6
]}

Fedotov, A. ^{[25
]}

Felst, R. ^{[12
]}

Feltesse, J. ^{[11
]}

机构：

[1] Natl Inst Phys & Nucl Engn NIPNE, Bucharest, Romania

[2] Phys Inst RWTH, Aachen, Germany

[3] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 1100, Serbia

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

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

[6] Univ Antwerp, B-2020 Antwerp, Belgium

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

[8] Inst Nucl Phys, Krakow, Poland

[9] TU Dortmund, Inst Phys, Dortmund, Germany

[10] Joint Inst Nucl Res, Dubna, Russia

[11] CEA, DSM Irfu, CE Saclay, Gif Sur Yvette, France

[12] DESY, D-2000 Hamburg, Germany

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

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

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

[16] Heidelberg Univ, Kirchhoff Inst Phys, D-6900 Heidelberg, Germany

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

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

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

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

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

[22] Aix Marseille Univ, CPPM, CNRS, IN2P3, F-13288 Marseille, France

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

[24] CINVESTAV IPN, Dept Fis, Mexico City, DF, Mexico

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

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

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

[28] Univ Paris Sud, LAL, CNRS, IN2P3, Orsay, France

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

[30] Univ Paris 07, LPNHE, Univ Paris 06, CNRS,IN2P3, Paris, France

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

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

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

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

[35] INFN Roma 3, Rome, Italy

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

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

[38] Paul Scherrer Inst, Villigen, Switzerland

[39] Univ Wuppertal, Fachbereich C, Wuppertal, Germany

[40] Yerevan Phys Inst, Yerevan 375036, Armenia

[41] DESY, Zeuthen, Germany

[42] ETH, Inst Teilchenphys, Zurich, Switzerland

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

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

[45] Univ Wuppertal, Rechenzentrum, Wuppertal, Germany

[46] Safarik Univ, Kosice, Slovakia

[47] CERN, Geneva, Switzerland

[48] Comenius Univ, Bratislava, Slovakia

[49] Univ Bucharest, Fac Phys, Bucharest, Romania

来源：

EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 03期

基金：

英国科学技术设施理事会; 瑞士国家科学基金会; 俄罗斯基础研究基金会;

关键词：

LIQUID ARGON CALORIMETER; F-2; STRUCTURE-FUNCTION; EP SCATTERING; LOW-X; E(+)P SCATTERING; GENERATOR; ENERGY; CALIBRATION; COHERENCE; DETECTOR;

D O I：

10.1140/epjc/s10052-012-1910-8

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：

Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.

引用

页码：1 / 12

页数：12

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