Investigation of power corrections to event shape variables measured in deep-inelastic scattering

被引:61
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
Behnke, O
Beier, C
Belousov, A
Benisch, T
Berger, C
Bernardi, G
Berndt, T
Bertrand-Coremans, G
Biddulph, P
Bizot, JC
Borras, K
Boudry, V
Braunschweig, W
Brisson, V
Bröker, HB
Brown, DP
Brückner, W
Bruel, P
Bruncko, D
Bürger, J
Büsser, FW
Bunyatyan, A
Burke, S
Burkhardt, H
Burrage, A
Buschhorn, G
Campbell, AJ
Cao, J
Carli, T
Chabert, E
Charlet, M
Clarke, D
Clerbaux, B
Collard, C
Contreras, JG
Coughlan, JA
Cousinou, MC
机构
[1] Berg Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany
[2] Rhein Westfal TH Aachen, Inst Phys 1, D-5100 Aachen, Germany
[3] Rhein Westfal TH Aachen, Inst Phys 2, D-5100 Aachen, Germany
[4] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England
[5] VUB, ULB, Inter Univ Inst High Energies, Brussels, Belgium
[6] Univ Instelling Antwerp, B-2610 Antwerp, Belgium
[7] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[8] Inst Nucl Phys, Krakow, Poland
[9] Univ Dortmund, Inst Phys, D-4600 Dortmund, Germany
[10] Joint Inst Nucl Res, Dubna, Russia
[11] CEA Saclay, DAPNIA, DSM, F-91191 Gif Sur Yvette, France
[12] DESY, D-2000 Hamburg, Germany
[13] Univ Hamburg, Inst Expt Phys 2, D-2000 Hamburg, Germany
[14] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
[15] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany
[16] Heidelberg Univ, Inst Hochenergiephys, D-6900 Heidelberg, Germany
[17] Univ Kiel, Inst Expt & Angew Phys, Kiel, Germany
[18] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia
[19] Univ Lancaster, Sch Phys & Chem, Lancaster, England
[20] Univ Liverpool, Liverpool L69 3BX, Merseyside, England
[21] Queen Mary Univ London, London E1 4NS, England
[22] Lund Univ, Dept Phys, Lund, Sweden
[23] Univ Manchester, Dept Phys & Astron, Manchester, Lancs, England
[24] Univ Aix Marseille 2, CNRS, IN2P3, CPPM, F-13284 Marseille 07, France
[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 11, CNRS, IN2P3, LAL, Orsay, France
[29] Ecole Polytech, CNRS, IN2P3, LPHNE, F-91128 Palaiseau, France
[30] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France
[31] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France
[32] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic
[33] Charles Univ Prague, Nucl Ctr, Prague, Czech Republic
[34] Ist Nazl Fis Nucl Roma 1, Rome, Italy
[35] Univ Roma 3, Dipartimento Fis, Rome, Italy
[36] Paul Scherrer Inst, Villigen, Switzerland
[37] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany
[38] Yerevan Phys Inst, Yerevan 375036, Armenia
[39] DESY, Zeuthen, Germany
[40] Swiss Fed Inst Technol, Inst Teilchenphys, Zurich, Switzerland
[41] Univ Zurich, Inst Phys, Zurich, Switzerland
[42] Berg Univ Wuppertal, Rechenzentrum, Wuppertal, Germany
[43] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany
[44] CINVESTAV, Dept Fis Ap, Merida, Yucatan, Mexico
[45] Safarik Univ, SK-04154 Kosice, Slovakia
来源
EUROPEAN PHYSICAL JOURNAL C | 2000年 / 14卷 / 02期
关键词
D O I
10.1007/s100520000344
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 ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet rate. The data cover a large range of the four-momentum transfer Q, which is considered to be the relevant energy scale, between 7GeV and 100 GeV. The Q dependences of the mean values are compared with second order calculations of perturbative QCD applying power law corrections proportional to 1/Q(p) to account for hadronization effects. The concept of power corrections is investigated by fitting simultaneously a non-perturbative parameter <(alpha)over bar>(p-1) and the strong coupling constant a,.
引用
收藏
页码:255 / 269
页数:15
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