Initial state QED corrections to W-pair production at LEP2/NLC - Monte Carlo versus semi-analytical approach

被引:125
作者
Skrzypek, M
Jadach, S
Martinez, M
Placzek, W
Was, Z
机构
[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND
[2] IFAE,BARCELONA,SPAIN
[3] UNIV TENNESSEE,DEPT PHYS & ASTRON,KNOXVILLE,TN 37996
关键词
D O I
10.1016/0370-2693(96)00080-9
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a comparison of the Monte Carlo code KORALW with the SemiANalytical code KORWAN for W-pair production. We focus on the technical precision, total cross section and some differential distributions. We find the technical precision of KORALW in the LEP2 energy range to be of order 10(-4) or better. We show that within the 0.1% precision level the O(alpha(2)) photonic corrections are not necessary in the YFS framework, at least for the total cross section. A detailed description of the semi-analytical formalism implemented in the KORWAN routine is also given.
引用
收藏
页码:289 / 298
页数:10
相关论文
共 20 条
[1]  
AGUILARBENITEZ M, 1994, PHYS REV D 1, V50, P1173
[2]  
ALTARELLI G, Z PHYSICS LEP, V1
[3]  
BARDIN D, 1995, PHYSICS LEP 200
[4]  
BARDIN D, 1994, NUCL PHYS B, V37
[5]  
BARDIN D, DESY95167
[6]  
BARDIN D, 1995, TRANSP 2 GEN M WW EG
[7]   EXCALIBUR - A MONTE-CARLO PROGRAM TO EVALUATE ALL 4-FERMION PROCESSES AT LEP-200 AND BEYOND [J].
BERENDS, FA ;
PITTAU, R ;
KLEISS, R .
COMPUTER PHYSICS COMMUNICATIONS, 1995, 85 (03) :437-452
[8]   W PAIR PRODUCTION IN E+E- ANNIHILATION - RADIATIVE-CORRECTIONS INCLUDING HARD BREMSSTRAHLUNG [J].
FLEISCHER, J ;
KOLODZIEJ, K ;
JEGERLEHNER, F .
PHYSICAL REVIEW D, 1993, 47 (03) :830-836
[9]  
GRUNEWALD M, HUBIEP9513 HUMB U BE
[10]   LEPTON CORRELATIONS IN GAUGE-BOSON PAIR PRODUCTION AND DECAY [J].
GUNION, JF ;
KUNSZT, Z .
PHYSICAL REVIEW D, 1986, 33 (03) :665-671