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

页码：255 / 269

页数：15

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