On the spin-zero partners of composite weak bosons | Zendy

Stéphan Narison | Zendy; M. Perrottet | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

On the spin-zero partners of composite weak bosons

Author(s) -

Stéphan Narison,

M. Perrottet

Publication year - 1985

Publication title -

il nuovo cimento a

Language(s) - English

Resource type - Journals

ISSN - 0369-3546

DOI - 10.1007/bf02734946

Subject(s) - physics , boson , particle physics , higgs boson , pion , hadron , goldstone boson , fermion , vertex (graph theory) , bar (unit) , coupling (piping) , weak interaction , elementary particle , order (exchange) , spin (aerodynamics) , zero (linguistics) , sign (mathematics) , nuclear physics , graph , combinatorics , mechanical engineering , mathematical analysis , linguistics , philosophy , mathematics , finance , meteorology , engineering , economics , thermodynamics

Summary We study the dynamics and some phenomenological implications of the spin-zero partners of the W-bosons, which can couple to fermion pairsà la Higgs ( $$\bar \pi $$ ) or in an universal way (U, X). A light hyperpion $$\bar \pi $$ decouples in low-energy weak-interaction physics in contrast to the pion in hadronic interactions. The best signal for the $$\bar \pi $$ is its copious pair production in W or Z decays with a width of the order of 0.25 GeV. A 50 GeV mass of these bosons can be explained with a relatively light value of the preon « current » mass. A strong coupling for the Z-X-γ vertex and a weak one for the Z-e+-e− are dynamically consistent. A present rate of Z into γe+e− would correspond to a X total width of the order of 0.24 GeV.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research