Determination of the CP properties of the Higgs boson from data on tau-lepton-decay products in the process e{sup +}e{sup -} {sup {yields}} {tau}{sup +}{tau}{sup -}{nu}{nu}-bar

Journal Article · Sat Mar 15 04:00:00 EDT 2008 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1007/S11450-008-3014-3· OSTI ID:21077522

The process e{sup +}e{sup -} {sup {yields}} {tau}{sup +}{tau}{sup -}v{nu}-bar, which is highly sensitive to anomalous H{tau}{tau} interaction, is investigated within a model involving a new pseudoscalar Higgs boson. It is shown that the problem of separating the contributions of the scalar and pseudoscalar states of the Higgs boson can be solved via taking into account the polarizations of final-state particles. The inclusion of cascade tau-lepton decays makes it possible to determine reliably the CP state of the Higgs boson and to pinpoint the magnitude and sign of respective coupling constants.

• OSTI ID: 21077522
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 3 Vol. 71; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLING CONSTANTS
DAUGHTER PRODUCTS
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
HIGGS BOSONS
INTERACTIONS
LEPTONIC DECAY
PARTICLE DECAY
PARTICLES
POLARIZATION
POSITRONS
TAU PARTICLES