Published August 2017 | Version v1
Journal article Metadata-only

On the choice of beam polarization in e+e- → ZZ/Zγ and anomalous triple gauge-boson couplings

Creators

  • 1. Indian Institute of Science Education and Research Kolkata, Department of Physical Sciences, Mohanpur (India)

Description

The anomalous trilinear gauge couplings of Z and γ are studied in e+e- → ZZ/Zγ with longitudinal beam polarizations using a complete set of polarization asymmetries for the Z boson. We quantify the goodness of the beam polarization in terms of the likelihood and find the best choice of e- and e+ polarizations to be (+0.16, -0.16), (+0.09, -0.10) and (+0.12, -0.12) for ZZ, Zγ and combined processes, respectively. Simultaneous limits on anomalous couplings are obtained for these choices of beam polarizations using Markov-Chain-Monte-Carlo (MCMC) for an e+e- collider running at √(s) = 500 GeV and L = 100 fb-1. We find the simultaneous limits for these beam polarizations to be comparable with each other and also comparable with the unpolarized beam case. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-017-5093-1

Additional details

Identifiers

DOI
10.1140/epjc/s10052-017-5093-1;

Publishing Information

Journal Title
European Physical Journal. C, Particles and Fields (Online)
Journal Volume
77
Journal Issue
8
Journal Page Range
p. 1-9
ISSN
1434-6052

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
48084106
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANNIHILATION; COMPUTERIZED SIMULATION; COUPLING CONSTANTS; ELECTRON-POSITRON INTERACTIONS; GEV RANGE 100-1000; MARKOV PROCESS; MAXIMUM-LIKELIHOOD FIT; MONTE CARLO METHOD; PAIR PRODUCTION; PHOTONS; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; QUANTUM FLAVORDYNAMICS; SPIN ORIENTATION; UNIFIED GAUGE MODELS; Z NEUTRAL BOSONS
Descriptors DEC
BEAMS; BOSONS; CALCULATION METHODS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; NUMERICAL SOLUTION; ORIENTATION; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY; SIMULATION; STOCHASTIC PROCESSES