Measurement of event shape variables in deep inelastic e p scattering

被引：62

作者：

Adloff, C

Aid, S

Anderson, M

Andreev, V

Andrieu, B

Arkadov, V

Arndt, C

Ayyaz, I

Babaev, A

Bahr, J

Ban, J

Baranov, P

Barrelet, E

Barschke, R

Bartel, W

Bassler, U

Beck, HP

Beck, M

Behrend, HJ

Belousov, A

Berger, C

Bernardi, G

BertrandCoremans, G

Beyer, R

Biddulph, P

Bizot, JC

Borras, K

Botterweck, F

Boudry, V

Bourov, S

Braemer, A

Braunschweig, W

Brisson, V

Brown, DP

Bruckner, W

Bruel, P

Bruncko, D

Brune, C

Burger, J

Busser, FW

Buniatian, A

Burke, S

Buschhorn, G

Calvet, D

Campbell, AJ

Carli, T

Charlet, M

Clarke, D

Clerbaux, B

Cocks, S

机构：

[1] CEA SACLAY, DSM, DAPNIA, F-91191 GIF SUR YVETTE, FRANCE

[2] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW, LANARK, SCOTLAND

[3] DESY, D-2000 HAMBURG, GERMANY

[4] UNIV HAMBURG, INST EXPT PHYS 2, D-2000 HAMBURG, GERMANY

[5] UNIV HAMBURG, INST EXPT PHYS 1, D-2000 HAMBURG, GERMANY

[6] MAX PLANCK INST KERNPHYS, D-69117 HEIDELBERG, GERMANY

[7] UNIV HEIDELBERG, INST PHYS, D-6900 HEIDELBERG, GERMANY

[8] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, D-6900 HEIDELBERG, GERMANY

[9] CHRISTIAN ALBRECHTS UNIV KIEL, INST REINE & ANGEW KERNPHYS, D-2300 KIEL, GERMANY

[10] SLOVAK ACAD SCI, INST EXPT PHYS, KOSICE 04353, SLOVAKIA

[11] UNIV LANCASTER, SCH PHYS & CHEM, LANCASTER, ENGLAND

[12] UNIV LIVERPOOL, DEPT PHYS, LIVERPOOL L69 3BX, MERSEYSIDE, ENGLAND

[13] UNIV LONDON QUEEN MARY & WESTFIELD COLL, LONDON E1 4NS, ENGLAND

[14] LUND UNIV, DEPT PHYS, LUND, SWEDEN

[15] UNIV MANCHESTER, DEPT PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

[16] UNIV AIX MARSEILLE 2, IN2P3, CNRS, CPPM, F-13284 MARSEILLE 07, FRANCE

[17] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA

[18] PN LEBEDEV PHYS INST, MOSCOW 117924, RUSSIA

[19] MAX PLANCK INST PHYS & ASTROPHYS, D-80805 MUNICH, GERMANY

[20] UNIV PARIS 11, LAL, IN2P3, CNRS, ORSAY, FRANCE

[21] ECOLE POLYTECH, CNRS, IN2P3, LAL, F-91128 PALAISEAU, FRANCE

[22] UNIV PARIS 06, LPNHE, IN2P3, CNRS, PARIS, FRANCE

[23] UNIV PARIS 07, LPNHE, IN2P3, CNRS, PARIS, FRANCE

[24] ACAD SCI CZECH REPUBL, INST PHYS, PRAGUE, CZECH REPUBLIC

[25] CHARLES UNIV, NUCL CTR, PRAGUE, CZECH REPUBLIC

[26] UNIV ROMA 3, DIPARTIMENTO FIS, ROME, ITALY

[27] IST NAZL FIS NUCL, ROME, ITALY

[28] PAUL SCHERRER INST, VILLIGEN, SWITZERLAND

[29] DESY, INST HOCHENERGIEPHYS, ZEUTHEN, GERMANY

[30] ETH ZURICH, INST TEILCHENPHYS, ZURICH, SWITZERLAND

[31] UNIV ZURICH, INST PHYS, ZURICH, SWITZERLAND

[32] HUMBOLDT UNIV BERLIN, INST PHYS, BERLIN, GERMANY

[33] BERG UNIV GESAMTHSCH WUPPERTAL, RECHENZENTRUM, WUPPERTAL, GERMANY

[34] RHEIN WESTFAL TH AACHEN, INST PHYS 1, D-5100 AACHEN, GERMANY

[35] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-5100 AACHEN, GERMANY

[36] UNIV BIRMINGHAM, SCH PHYS & SPACE RES, BIRMINGHAM B15 2TT, W MIDLANDS, ENGLAND

[37] VUB, ULB, INTERUNIV INST HIGH ENERGIES, BRUSSELS, BELGIUM

[38] UNIV INSTELLING ANTWERP, B-2610 WILRIJK, BELGIUM

[39] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[40] INST NUCL PHYS, KRAKOW, POLAND

[41] UNIV CALIF DAVIS, DEPT PHYS, DAVIS, CA USA

[42] UNIV CALIF DAVIS, IIRPA, DAVIS, CA USA

[43] UNIV DORTMUND, INST PHYS, D-4600 DORTMUND, GERMANY

来源：

PHYSICS LETTERS B | 1997年 / 406卷 / 03期

关键词：

D O I：

10.1016/S0370-2693(97)00754-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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 and jet mass in the current hemisphere of the Breit frame over a large range of momentum transfers Q between 7 GeV and 100 GeV. The data are compared with results from e(+)e(-) experiments. Using second order QCD calculations and an approach to relate hadronisation effects to power corrections an analysis of the e dependences of the means of the event shape parameters is presented, from which both the power corrections and the strong coupling constant are determined without any assumption on fragmentation models. The power corrections of all event shape variables investigated follow a 1/Q behaviour and can be described by a common parameter <(alpha)over bar>. (C) 1997 Published by Elsevier Science B,V.

引用

页码：256 / 270

页数：15

共 28 条

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