Model-independent analysis of CP violation effects in decays of the Higgs boson into a Pair of the W and Z bosons

• Published in: Journal of experimental and theoretical physics Vol. 107; no. 5; pp. 774 - 786
• Main Author: Koval’chuk, V. A.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-11-2008
• Subjects: ANGULAR DISTRIBUTION; Astrophysics; ASYMMETRY; Classical and Quantum Gravitation; CP INVARIANCE; ELECTRONS; Elementary Particles; Fields; Gravitation; HELICITY; HIGGS BOSONS; MUONS MINUS; MUONS PLUS; Nuclei; PAIR PRODUCTION; PARITY; Particle and Nuclear Physics; PARTICLE DECAY; Particles; Physics; Physics and Astronomy; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; POSITRONS; Quantum Field Theory; Relativity Theory; Solid State Physics; T INVARIANCE; W MINUS BOSONS; W PLUS BOSONS; Z NEUTRAL BOSONS; 14.80.Cp; 12.60.Fr; 11.30.Er; 14.80.Bn
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S1063776108110071

Effects of
CP
and
T
invariance violation are studied in the most general interaction of the Higgs boson with the intermediate vector
W
±
and
Z
bosons. Various angular distributions of the cascade decay Φ →
W
+
W
−
/
ZZ
→ 4 of fermions in the transversity and helicity systems are calculated, and asymmetries are constructed and evaluated. It is shown that studying the azimuthal angle distribution of the process Φ →
ZZ
→ (
e
−
e
+
)(μ
−
μ
+
) in the transversity system is effective for measuring the spatial parity of the Higgs boson.