The Logical Origin of CP Violation
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2026
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| _version_ | 1866902191067889664 |
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| author | Chan, H.-K. |
| author_facet | Chan, H.-K. |
| contents | <p dir="auto">This preprint proposes a unified foundational resolution to the long-standing strong and weak CP problems in particle physics based on the <strong>logical arrow of time</strong>.</p> <p dir="auto">Every real observer is necessarily a finite proper subsystem of the universe and must irreversibly discard microscopic information, leading to continuous coarse-graining. Moreover, any physical process evolves in its natural <strong>home universe</strong> (a matter-dominated environment), while its CP-conjugate propagates in the same physical universe acting as its <strong>guest universe</strong>. This definitional asymmetry, combined with forward-time coarse-graining, constitutes the logical arrow of time — the origin of the thermodynamic arrow.</p> <p dir="auto">The paper distinguishes two conceptually different notions often conflated under "CP violation":</p> <ul> <li><strong>Genuine CP violation (GCV)</strong>: the raw forward-time asymmetry observed directly between a process and its CP-conjugate, which arises naturally from the logical arrow.</li> <li><strong>Conventional CP violation (CPvT)</strong>: the small residual asymmetry that remains after normalization, efficiency corrections, and Monte Carlo modelling. This is shown to be better understood as an approximate test of CPT invariance via virtual T-conjugation, consistent with the CPLEAR collaboration’s own framing of their 1998 semileptonic analysis as a measurement of the CPT parameter Re(δ).</li> </ul> <p dir="auto">The framework explains why large raw asymmetries appear in weak dynamical processes (flavor-changing transitions act as a microscopic trigger revealing the logical arrow), while essentially isomorphic configurations in strong CP tests (e.g., neutron electric dipole moment measurements) show no genuine CP violation. It resolves both CP problems without introducing new microscopic mechanisms, new particles, or fine-tuning parameters.</p> <p dir="auto">The Standard Model’s phenomenological successes (CKM matrix description of weak CP data and extreme suppression of strong CP violation) are fully respected. This work provides a complementary observer-dependent perspective that addresses the deeper origin of CP violation and its intimate connection to the arrow of time.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19491092 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | The Logical Origin of CP Violation Chan, H.-K. CP violation, strong CP problem, logical arrow of time, genuine CP violation, conventional CP violation, CPT theorem, coarse-graining, accelerator principle <p dir="auto">This preprint proposes a unified foundational resolution to the long-standing strong and weak CP problems in particle physics based on the <strong>logical arrow of time</strong>.</p> <p dir="auto">Every real observer is necessarily a finite proper subsystem of the universe and must irreversibly discard microscopic information, leading to continuous coarse-graining. Moreover, any physical process evolves in its natural <strong>home universe</strong> (a matter-dominated environment), while its CP-conjugate propagates in the same physical universe acting as its <strong>guest universe</strong>. This definitional asymmetry, combined with forward-time coarse-graining, constitutes the logical arrow of time — the origin of the thermodynamic arrow.</p> <p dir="auto">The paper distinguishes two conceptually different notions often conflated under "CP violation":</p> <ul> <li><strong>Genuine CP violation (GCV)</strong>: the raw forward-time asymmetry observed directly between a process and its CP-conjugate, which arises naturally from the logical arrow.</li> <li><strong>Conventional CP violation (CPvT)</strong>: the small residual asymmetry that remains after normalization, efficiency corrections, and Monte Carlo modelling. This is shown to be better understood as an approximate test of CPT invariance via virtual T-conjugation, consistent with the CPLEAR collaboration’s own framing of their 1998 semileptonic analysis as a measurement of the CPT parameter Re(δ).</li> </ul> <p dir="auto">The framework explains why large raw asymmetries appear in weak dynamical processes (flavor-changing transitions act as a microscopic trigger revealing the logical arrow), while essentially isomorphic configurations in strong CP tests (e.g., neutron electric dipole moment measurements) show no genuine CP violation. It resolves both CP problems without introducing new microscopic mechanisms, new particles, or fine-tuning parameters.</p> <p dir="auto">The Standard Model’s phenomenological successes (CKM matrix description of weak CP data and extreme suppression of strong CP violation) are fully respected. This work provides a complementary observer-dependent perspective that addresses the deeper origin of CP violation and its intimate connection to the arrow of time.</p> |
| title | The Logical Origin of CP Violation |
| topic | CP violation, strong CP problem, logical arrow of time, genuine CP violation, conventional CP violation, CPT theorem, coarse-graining, accelerator principle |
| url | https://doi.org/10.5281/zenodo.19491092 |