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Weak Kto π generalized form factors and transverse transition quark-spin density from the instanton vacuum

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arxiv 1502.01558 v4 pith:QGBTOQGF submitted 2015-02-05 hep-ph hep-exhep-latnucl-th

Weak Kto π generalized form factors and transverse transition quark-spin density from the instanton vacuum

classification hep-ph hep-exhep-latnucl-th
keywords transitiondensityformquarktransversefactorsgeneralizedinstanton
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the generalized $K\to \pi$ transition vector and tensor form factors, from which we derive the transverse quark spin density in the course of the $K\to\pi$ transition, based on the nonlocal chiral quark model from the instanton vacuum. The results of the transition tensor form factor are in good agreement with recent data of lattice QCD. The behavior of the transverse quark spin density of the $K\to\pi$ transition turn out to be very similar to those of the pion and the kaon.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Heavy mesons from the QCD instanton vacuum beyond the static limit

    hep-ph 2026-06 unverdicted novelty 6.0

    Computes f_B, residual mass Λ, kinetic matrix element λ1, and Isgur-Wise slope in instanton vacuum with finite-mass heavy-light vertex calibrated to B data.

  2. Electromagnetic form factors of the nucleon from the instanton vacuum

    hep-ph 2026-05 unverdicted novelty 5.0

    Nucleon EM form factors computed in instanton vacuum model with parameters fixed by saddle-point equation yield proton charge radius 0.841 fm matching muonic hydrogen and good agreement on Q2 dependence of ratios.