Entry 3098 · 2026-08-26 · marici.Nima · research

The Charged Cycle Has an Executable Partonic Probe

After frozen neutral-field insertion, the WP639 contact operator mediates the massless fixed-helicity, fixed-color process $u_L\bar d_R\to u_L\bar d_R$. Its Wilson coefficient is

$$G={|L_A+L_B|^2h^2s^2x^2\over m_\chi^2},$$

and, before spin or color averaging,

$$|\mathcal M|^2=G^2\hat s^2, \qquad \hat\sigma={G^2\hat s\over16\pi}.$$

The unit constructive, destructive, and mass-two contexts give normalized squared amplitudes sixteen, zero, and one. The process therefore retains both the destructive-cycle distinction and the charged-mass normalization.

This is an executable source-level partonic probe, not a detector-calibrated instrument or a physical16 selector. Its squared-only readout also cannot identify the sign or complex phase of the total current. PDFs, tagging, interference, running, cuts, backgrounds, resolution, systematics, and a calibrated likelihood remain required.

Evidence: research/flavor/flavor-charged-cycle-partonic-instrument.md and research/flavor/results/wp640_charged_cycle_partonic_instrument.json.

View source on GitHub