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Enhancedb→sgDecay, Inclusiveη′Production, and the Gluon Anomaly

1997/05/31 by W.-S. Hou, Wei-Shu Hou, B. Tseng · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevlett.80.434

published as Phys.Rev.Lett. 80 (1998) 434-437 · 12 pages, revtex, 3 figs. (version to appear in Phys. Rev. Lett.)

arxiv created 1997/11/14 · openalex publication_date 1998/01/19 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The experimental hint of large B\ensuremath→\ensuremathη^\ensuremath'+Xs is linked to the b\ensuremath→s penguins via the gluon anomaly. Using running \ensuremathαs in the \ensuremathη^\ensuremath'\ensuremath-g\ensuremath-g coupling, the standard b\ensuremath→sg* penguin alone seems insufficient, calling for the need of dipole b\ensuremath→sg at the 10% level from new physics, which could also resolve the semileptonic branching ratio and charm counting problems. The interference of standard and new physics contributions may result in direct CP asymmetries at the 10% level, which could be observed soon at B factories.

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