Gauge-invariant YFS exponentiation of (un)stable {ital W}{sup +}{ital W}{sup {minus}} production at and beyond CERN LEP 2 energies

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.5434· OSTI ID:392063

Jadach, S ^[1]; Placzek, W ^[2]; Skrzypek, M ^[3]; Ward, B F ^[2]

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1. Institute of Nuclear Physics, ulica Kawiory 26a, Krakow, Poland CERN, Theory Division, CH-1211 Geneva 23 (Switzerland)
2. Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)
3. Institute of Nuclear Physics, ulica Kawiory 26a, Krakow (Poland)

We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of {ital e}{sup +}{ital e}{sup {minus}}{r_arrow}{ital W}{sup +}{ital W}{sup {minus}}{r_arrow}{ital f}{sub 1}{ital {bar f}}{sub 1}{sup {prime}}+{ital {bar f}}{sub 2}{ital f}{sub 2}{sup {prime}} at and beyond CERN LEP 2 energies, where the left-handed parts of {ital f}{sub {ital i}} and {ital f}{sub {ital i}}{sup {prime}} are the respective upper and lower components of an SU(2){sub {ital L}} doublet, {ital i}=1,2. The problem of gauge invariance of the radiation from the unstable charged spin 1 {ital W}{sup {plus_minus}} is solved in an entirely physical manner. Our formulas are illustrated in a prototypical YFS Monte Carlo event generator YFSWW2, wherein both standard model and anomalous triple gauge boson couplings are allowed. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Stanford Linear Accelerator Center
• DOE Contract Number: AC03-76SF00515; FG05-91ER40627
• OSTI ID: 392063
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIPARTICLES
COUPLING
ELECTRON-POSITRON INTERACTIONS
F1-1510 MESONS
F2 PRIME-1525 MESONS
GAUGE INVARIANCE
MONTE CARLO METHOD
PAIR PRODUCTION
PARTICLE PRODUCTION
STANDARD MODEL
SU-2 GROUPS
W MINUS BOSONS
W PLUS BOSONS