Observation of the hadronic final state charge asymmetry in high Q2 deep-inelastic scattering at HERA

被引：10

作者：

Aaron, F. D. ^{[7
,43
]}

Martin, M. Aldaya ^{[1
]}

Alexa, C. ^{[7
]}

Alimujiang, K. ^{[1
]}

Andreev, V. ^{[25
]}

Antunovic, B. ^{[1
]}

Asmone, A. ^{[34
]}

Backovic, S. ^{[31
]}

Baghdasaryan, A. ^{[39
]}

Barrelet, E. ^{[29
,30
]}

Bartel, W. ^{[1
]}

Begzsuren, K. ^{[36
]}

Belousov, A. ^{[25
]}

Bizot, J. C. ^{[27
]}

Boudry, V. ^{[28
]}

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

Bracinik, J. ^{[4
]}

Brandt, G. ^{[1
]}

Brinkmann, M. ^{[12
]}

Brisson, V. ^{[27
]}

Bruncko, D. ^{[16
]}

Bunyatyan, A. ^{[13
,39
]}

Buschhorn, G. ^{[26
]}

Bystritskaya, L. ^{[24
]}

Campbell, A. J. ^{[1
]}

Avila, K. B. Cantun ^{[22
]}

Cassol-Brunner, F. ^{[21
]}

Cerny, K. ^{[33
]}

Cerny, V. ^{[16
,44
]}

Chekelian, V. ^{[26
]}

Cholewa, A. ^{[1
]}

Contreras, J. G. ^{[22
]}

Coughlan, J. A. ^{[8
]}

Cozzika, G. ^{[11
]}

Cvach, J. ^{[32
]}

Dainton, J. B. ^{[18
]}

Daum, K. ^{[1
,38
,45
]}

Deak, M. ^{[1
]}

de Boer, Y. ^{[1
]}

Delcourt, B. ^{[27
]}

Del Degan, M. ^{[41
]}

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

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

Diaconu, C. ^{[21
]}

Dodonov, V. ^{[13
]}

Dossanov, A. ^{[26
]}

Dubak, A. ^{[31
,46
]}

Eckerlin, G. ^{[1
]}

Efremenko, V. ^{[24
]}

Egli, S. ^{[37
]}

机构：

[1] DESY, D-2000 Hamburg, Germany

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

[3] Vinca Inst Nucl Sci, Belgrade, Serbia

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

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

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

[7] NIPNE, Bucharest, Romania

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

[9] Inst Nucl Phys, Krakow, Poland

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

[11] Joint Inst Nucl Res, Dubna, Russia

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

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

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

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

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

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

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

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

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

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

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

[23] CINVESTAV, Dept Fis, Mexico City, DF, Mexico

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

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

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

[27] Univ Paris 11, CNRS, IN2P3, LAL, F-91405 Orsay, France

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

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

[30] Univ Paris 07, 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] 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, Fachbereich 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] Univ Bucharest, Fac Phys, Bucharest, Romania

[44] Comenius Univ, Bratislava, Slovakia

[45] Univ Wuppertal, Rechenzentrum, Wuppertal, Germany

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

[47] Safarik Univ, Kosice, Slovakia

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

[49] CERN, Geneva, Switzerland

[50] Ulaanbaatar Univ, Ulaanbaatar, Mongolia

来源：

PHYSICS LETTERS B | 2009年 / 681卷 / 02期

基金：

英国科学技术设施理事会;

关键词：

MONTE-CARLO GENERATOR; EVENT GENERATOR; QCD ANALYSIS; NUCLEON; CALORIMETER; SIMULATION; COLLISIONS;

D O I：

10.1016/j.physletb.2009.09.056

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A first measurement is presented of the charge asymmetry in the hadronic final state from the hard interaction in deep-inelastic ep neutral current scattering at HERA. The measurement is performed in the range of negative squared four momentum transfer 100 < Q(2) < 8000 GeV2. The difference between the event normalised distributions of the scaled momentum, x(p), for positively and negatively charged particles, measured in the current region of the Breit frame, is studied together with its evolution as a function of Q. The results are compared to Monte Carlo models at the hadron and parton levels. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：125 / 133

页数：9

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