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Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs

We present the new coherent exclusive exponentiation (CEEX), in comparison to the older exclusive exponentiation (EEX) and the semi-analytical inclusive exponentiation (IEX), for the process e/sup +/e /sup -/ to ff + n gamma , f = mu , tau , d, u, s, c, b, with validity for centre of mass energies f...

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Detalles Bibliográficos
Autores principales: Ward, B F L, Jadach, Stanislaw, Placzek, W, Skrzypek, M, Was, Z
Lenguaje:eng
Publicado: 2001
Materias:
Acceso en línea:http://cds.cern.ch/record/884859
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author Ward, B F L
Jadach, Stanislaw
Placzek, W
Skrzypek, M
Was, Z
author_facet Ward, B F L
Jadach, Stanislaw
Placzek, W
Skrzypek, M
Was, Z
author_sort Ward, B F L
collection CERN
description We present the new coherent exclusive exponentiation (CEEX), in comparison to the older exclusive exponentiation (EEX) and the semi-analytical inclusive exponentiation (IEX), for the process e/sup +/e /sup -/ to ff + n gamma , f = mu , tau , d, u, s, c, b, with validity for centre of mass energies from the tau lepton threshold to 1 TeV. We analyse 2f numerical results at the Z-peak, 189 GeV and 500 GeV. We also present precision calculations of the signal processes e/sup +/e /sup -/ to 4f in which the double resonant W/sup +/W/sup -/ intermediate state occurs using our YFSWW3-1.14 MC. Sample 4f Monte Carlo data are explicitly illustrated in comparison to the literature at LEP2 energies. These comparisons show that a TU for the signal process cross section of 0.4% is valid for the LEP2 200 GeV energy. LC energy results are also shown.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-8848592019-09-30T06:29:59Zhttp://cds.cern.ch/record/884859engWard, B F LJadach, StanislawPlaczek, WSkrzypek, MWas, ZCoherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairsParticle Physics - PhenomenologyWe present the new coherent exclusive exponentiation (CEEX), in comparison to the older exclusive exponentiation (EEX) and the semi-analytical inclusive exponentiation (IEX), for the process e/sup +/e /sup -/ to ff + n gamma , f = mu , tau , d, u, s, c, b, with validity for centre of mass energies from the tau lepton threshold to 1 TeV. We analyse 2f numerical results at the Z-peak, 189 GeV and 500 GeV. We also present precision calculations of the signal processes e/sup +/e /sup -/ to 4f in which the double resonant W/sup +/W/sup -/ intermediate state occurs using our YFSWW3-1.14 MC. Sample 4f Monte Carlo data are explicitly illustrated in comparison to the literature at LEP2 energies. These comparisons show that a TU for the signal process cross section of 0.4% is valid for the LEP2 200 GeV energy. LC energy results are also shown.oai:cds.cern.ch:8848592001
spellingShingle Particle Physics - Phenomenology
Ward, B F L
Jadach, Stanislaw
Placzek, W
Skrzypek, M
Was, Z
Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title_full Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title_fullStr Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title_full_unstemmed Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title_short Coherent exclusive exponentiation for precision Monte Carlo calculations of fermion pair production/precision predictions fo.stable W/sup +/W/sup -/ pairs
title_sort coherent exclusive exponentiation for precision monte carlo calculations of fermion pair production/precision predictions fo.stable w/sup +/w/sup -/ pairs
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/884859
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