Multijet rates in e+e- annihilation:: perturbation theory versus LEP data

被引：13

作者：

Nagy, Z

Trocsányi, Z

机构：

[1] KLTE, Dept Theoret Phys, H-4010 Debrecen, Hungary

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[3] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 74卷

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/S0920-5632(99)00130-9

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：

We show that the next-to-leading order perturbative prediction, matched with the next-to-leading logarithmic approximation for predicting both two-, three- and four-jet rates using the Durham jet-clustering algorithm, in the 0.001 < y(cut) < 0.1 range gives a very accurate description of the data obtained at the Large Electron Positron Collider. This information can be utilized either for simultaneous measurement of the strong coupling and the QCD colour charges, or for improving the QCD background prediction in new particle searches at LEP2.

引用

页码：44 / 48

页数：5

共 22 条

[1] Studies of quantum chromodynamics with the ALEPH detector [J].

Barate, R ;

Buskulic, D ;

Decamp, D ;

Ghez, P ;

Goy, C ;

Lees, JP ;

Lucotte, A ;

Minard, MN ;

Nief, JY ;

Odier, P ;

Pietrzyk, B ;

Casado, MP ;

Chmeissani, M ;

Comas, P ;

Crespo, JM ;

Delfino, M ;

Fernandez, E ;

Fernandez-Bosman, M ;

Garrido, L ;

Juste, A ;

Martinez, M ;

Orteu, S ;

Padilla, C ;

Park, IC ;

Pascual, A ;

Perlas, JA ;

Riu, I ;

Sanchez, F ;

Teubert, F ;

Colaleo, A ;

Creanza, D ;

de Palma, M ;

Gelao, G ;

Iaselli, G ;

Maggi, G ;

Maggi, M ;

Marinelli, N ;

Nuzzo, S ;

Ranieri, A ;

Raso, G ;

Ruggieri, F ;

Selvaggi, G ;

Silvestris, L ;

Tempesta, P ;

Tricomi, A ;

Zito, G ;

Huang, X ;

Lin, J ;

Ouyang, Q ;

Wang, T .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1998, 294 (1-3) :2-165

[2]

BENTVELSEN S, 1998, EUR PHYS C, V5, P19

[3] One-loop amplitudes for e(+)e(-)->(q)over-bar q(Q)over-bar-Q [J].

Bern, Z ;

Dixon, L ;

Kosower, DA ;

Weinzierl, S .

NUCLEAR PHYSICS B, 1997, 489 (1-2) :3-23

[4] One-loop amplitudes for e+e- to four partons [J].

Bern, Z ;

Dixon, L ;

Kosower, DA .

NUCLEAR PHYSICS B, 1998, 513 (1-2) :3-86

[5] The one-loop QCD corrections for gamma*->q(q)over-bar-gg [J].

Campbell, JM ;

Glover, EWN ;

Miller, DJ .

PHYSICS LETTERS B, 1997, 409 (1-4) :503-508

[6] NEW CLUSTERING-ALGORITHM FOR MULTIJET CROSS-SECTIONS IN E+E- ANNIHILATION [J].

CATANI, S ;

DOKSHITZER, YL ;

OLSSON, M ;

TURNOCK, G ;

WEBBER, BR .

PHYSICS LETTERS B, 1991, 269 (3-4) :432-438

[7] THE GLUON FORM-FACTOR TO HIGHER ORDERS - GLUON-GLUON ANNIHILATION AT SMALL QT [J].

CATANI, S ;

DEMILIO, E ;

TRENTADUE, L .

PHYSICS LETTERS B, 1988, 211 (03) :335-342

[8] The dipole formalism for the calculation of QCD jet cross sections at next-to-leading order [J].

Catani, S ;

Seymour, MH .

PHYSICS LETTERS B, 1996, 378 (1-4) :287-301

[9]

CATANI S, 1992, QCD 200 TEV

[10] DRELL-YAN CROSS-SECTIONS AT SMALL TRANSVERSE-MOMENTUM [J].

DAVIES, CTH ;

WEBBER, BR ;

STIRLING, WJ .

NUCLEAR PHYSICS B, 1985, 256 (03) :413-433

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