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相关论文: W-Pair Production with YFSWW/KoralW

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We present the recent developments in the precision studies of W-pair and single-W processes in e+e- collisions achieved with the help of the KoralW and YFSWW3 Monte Carlo generators. We focus on the theoretical precision of the…

高能物理 - 唯象学 · 物理学 2009-11-07 M. Skrzypek , S. Jadach , W. Placzek , B. F. L. Ward , Z. Was

Theoretical calculations for the W-pair production process at LEP2 in terms of Monte Carlo event generators RacoonWW and KorlaW&YFSWW3 are reviewed. The discussion concentrates on precision predictions for the main LEP2 WW observables. The…

高能物理 - 唯象学 · 物理学 2009-11-07 Wieslaw Placzek

We review the status of theoretical predictions for W-pair production at high energies. We discuss a systematic scenario towards a Monte-Carlo generator for e^+e^- --> 4f(\gamma), which meets the experimental requirements. In particular we…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Beenakker , A. Denner

We present the Monte Carlo event generator YFSWW3 version 1.16 for theprocess of W-pair production and decay in electron-positron collisions. It includes ${\cal O}(\alpha)$ electroweak radiative corrections in the WW production stage…

高能物理 - 唯象学 · 物理学 2010-04-06 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

We discuss theoretical predictions for W-pair production and decay at LEP2 and higher energies in a form suitable for comparison with raw data. We present a practical framework for calculating uncertainties of predictions given by the…

高能物理 - 唯象学 · 物理学 2011-09-13 T. Ishikawa , Y. Kurihara , M. Skrzypek , Z. Was

RACOONWW is the first Monte Carlo generator for e+e- --> WW --> 4f(+gamma) that includes the electroweak O(alpha) radiative corrections in the double-pole approximation completely. Some numerical results for LEP2 energies are discussed, and…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Denner , S. Dittmaier , M. Roth , D. Wackeroth

We present precision calculations of the processes e+ e- -> 4-fermions in which the double resonant W+ W- and ZZ intermediate states occur. Referring to these latter intermediate states as the 'signal processes', we show that, by using the…

高能物理 - 唯象学 · 物理学 2016-08-15 B. F. L. Ward , S. Jadach , W. Płaczek , M. Skrzypek , Z. Wcas

The version 1.51 of the Monte Carlo (MC) program KoralW for all $e^+e^-\to f_1\bar f_2 f_3\bar f_4$ processes is presented. The most important change since the previous version 1.42 is the facility for writing MC events on the mass storage…

高能物理 - 唯象学 · 物理学 2009-11-07 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

We present precision calculations of the processes e+e- -> 4-fermions in which the double resonant W+W- intermediate state occurs. Referring to this latter intermediate state as the 'signal process', we show that, by using the YFS Monte…

高能物理 - 唯象学 · 物理学 2009-10-31 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

Results on W-pair productions at LEP2 are reviewed and their consistency with standard electroweak expectations is summarised. Special interest is given to measurements of W polarisation, and to new studies of spin and decay-plane…

高能物理 - 实验 · 物理学 2007-05-23 P. Azzurri

We present the LL final state radiative effects for the exact O(alpha) YFS exponentiated (un)stable WW pair production at LEP2/NLC energies using Monte Carlo event generator methods. The respective event generator, version 1.12 of the…

高能物理 - 唯象学 · 物理学 2009-09-25 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

We present the Monte Carlo event generator {\tt WOPPER} for pair production of $W$'s and their decays at high energy $e^+e^-$ colliders. {\tt WOPPER} includes the effects from finite $W$ width and focusses on the calculation of higher order…

高能物理 - 唯象学 · 物理学 2009-10-22 H. Anlauf , H. D. Dahmen , P. Manakos , T. Mannel , WOPPER

We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3. Exploiting numerical results obtained with…

高能物理 - 唯象学 · 物理学 2009-11-07 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling \lambda=\lambda_{\gamma}=\lambda_Z at LEP2 energies for the tandem of the…

高能物理 - 唯象学 · 物理学 2008-11-26 R. Bruneliere , A. Denner , S. Dittmaier , S. Jadach , S. Jezequel , W. Placzek , M. Roth , M. Skrzypek , D. Wackeroth , B. F. L. Ward , Z. Was

We describe the Monte Carlo event generator WOPPER for four fermion production through W-pairs including resummed leading logarithmic QED radiative corrections.

高能物理 - 实验 · 物理学 2007-05-23 Harald Anlauf , Hans Dieter Dahmen , Angelika Himmler , Panagiotis Manakos , Thorsten Ohl , Thomas Mannel

We realize, by Monte Carlo event generator methods, the exact O}(\alpha)$ YFS exponentiated calculation of $e^+e^- \to W^+ W^- (\to f_1\bar f'_1 + \bar f_2 f'_2)$ at and beyond LEP2 energies, where the left-handed parts of $f_i$ and $f'_i$…

高能物理 - 唯象学 · 物理学 2009-10-30 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

We present numerical results for total cross sections and various distributions for e+e- --> WW --> 4f(+gamma) at a future 500GeV linear collider, obtained from the Monte Carlo generator RACOONWW. This generator is the first one that…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Denner , S. Dittmaier , M. Roth , D. Wackeroth

We determine the accuracy of various approximations to the O(alpha) corrections for on-shell W-pair production. While an approximation based on the universal corrections arising from initial-state radiation, from the running of alpha, and…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Denner , S. Dittmaier

We report on the status of the Monte Carlo event generator WOPPER. Version 1.1 of WOPPER describes four fermion production at LEP-II and beyond with leading logarithmic radiative corrections in the double W pole approximation. These…

高能物理 - 唯象学 · 物理学 2010-11-11 Harald Anlauf , Hans D. Dahmen , Angelika Himmler , Panagiotis Manakos , Thomas Mannel , Thorsten Ohl

We describe the new version of the Monte Carlo event generator WOPPER for four fermion production through W-pairs including resummed leading logarithmic QED radiative corrections. Among the new features included are singly resonant…

高能物理 - 唯象学 · 物理学 2008-02-03 Harald Anlauf , Panagiotis Manakos , Thorsten Ohl , Hans Dieter Dahmen
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