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The Effective η^′ g^* g^* Vertex at Arbitrary Gluon Virtualities

2001/12/04 by Ahmed Ali, A. Ali, Ali, A. +2
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0112048

19 pages, 6 figures (requires amssymb, epsf); Invited Talk; Conference of the Nuclear Physics Department of the Russian Academy of Sciences: Fundamental Interactions of Elementary Particles, Moscow, November 27 -- December 1, 2000

arxiv created 2001/12/04 · openalex publication_date 2001/12/04 · arxiv updated 2009/11/30 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

The effective η^′ g^* g^* vertex is studied in the standard (Brodsky-Lepage) and modified hard scattering approaches for arbitrary gluon virtualities in the time-like and space-like regions. The contribution of the gluons in the η^′-meson is taken into account, and the wave-function is constrained using data on the electromagnetic transition form factor of the η^′ meson. Our results have implications for the inclusive decay B → η^′ X and exclusive decays, such as B → η^′ (K, K^*), and in hadronic production processes N + N ( N) → η^′ X.

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