The Standard Model of particle physics has roughly 25 free parameters
(including neutrino masses and gravity) that must be measured experimentally.
This page tracks how the observer-centrism framework addresses each one —
whether it derives, constrains, explains the mechanism of, or leaves free each parameter.
Honest accounting. “Derived” means the framework produces the
value from axioms (plus structural postulates) with no empirical input beyond unit conventions.
“Constrained” means boundary conditions or ranges are derived but the exact value
requires further computation (typically RG running or bootstrap dynamics).
“Mechanism only” means the physical mechanism is explained but the numerical
value remains empirical. Parameters listed as “free” are genuine degrees of
freedom. “Non-viable” means the framework currently cannot explain the observed value.
6
Derived
6
Constrained
14
Mechanism only
2
Free
26 of 28 parameters
are determined in principle (derived, constrained, or mechanism identified).
Only 2 remain genuinely free or non-viable.
Comparison with Other Frameworks
How does this compare to the parameter-reduction claims of other major theoretical frameworks?
The table below compares the number of free parameters each framework leaves unexplained
out of the Standard Model's ~25.
Caveats. “Determined in principle” for this framework means
the derivation chain from axioms to the parameter exists and is identified, even where
the quantitative computation (e.g. full RG flow, bootstrap fixed-point) is not yet completed.
String theory similarly claims all parameters are determined once the vacuum is selected, but
the vacuum selection problem remains open. GUTs reduce parameters through group-theoretic
constraints but do not explain Yukawa couplings. No framework has yet computed all SM
parameters from first principles. For observer-centrism specifically, the 26 “determined
in principle” parameters break down as 6 fully derived,
6 structurally constrained, and 14 with
mechanism identified but numerical values pending. Other frameworks on this table typically
don’t distinguish these internal buckets, so head-to-head comparison on a strict “derived”
column would be methodologically inconsistent.
Fundamental Constants
cSpeed of light Derived
SM value2.998×108 m/s (defines metre)
FrameworkStructurally determined as universal phase propagation speed through coherence geometry. L=cT from loop closure.
Numerical value reflects human unit conventions. Framework determines c uniquely from axioms + S1 (pseudo-Riemannian structure).
ℏReduced Planck constant Derived
SM value1.055×10−34 J·s
FrameworkMinimum coherence cost of one observer cycle on S1. Identified with arc length of minimal closed geodesic via Lyusternik–Fet theorem.
Structure (minimum action, quantization, uncertainty principle) all rigorously derived. Numerical value is a unit convention.
Remaining gaps:Absolute numerical value not computed from first principles
GNewton's gravitational constant Constrained
SM value6.674×10−11m3kg−1s−2
FrameworkConstrained: G=ℓmin2c3/ℏ where ℓmin is the minimum resolvable scale. The Jacobson thermodynamic argument (Theorem 3.3) and self-consistency bound (Proposition 4.1) are rigorous; full derivation reduces to fixed-point uniqueness (Conjecture 6.3), jointly reducible with area-scaling S1 to Bootstrap Conjectures 7.1–7.2.
Multi-scale self-consistency of G across all bootstrap levels forces the observer network to be quasicrystalline (Pisot metallic-mean substitution matrix). The coupling strength is structurally constrained by the coherence Lagrangian, not fully free. Spinor/tetrad route rigorously ruled out.
FrameworkDetermined by the same constraint as sin2θW: once ΛEW is fitted, αem−1=αY−1+α2−1 is fixed. Two-loop: αem−1(MZ)=128.1.
Not an independent prediction from sin2θW — both follow from the same 1-parameter fit (ΛEW). The 0.1% accuracy reflects two-loop RG precision, not a separate test.
Remaining gaps:Independent prediction of ΛEW from bootstrap dynamics
αsStrong coupling constant Mechanism Only ~6% (suggestive, not a precision prediction)
SM valueαs(MZ)=0.1179±0.0009
FrameworkSuggestive: 1/dim(O)=1/8=0.125≈αs(MZ) (∼6% agreement). Requires SU(3) crystallization near MZ, which is not independently derived. The ratio α3/α2=2 at a common EW scale fails (Landau pole).
The near-coincidence 1/8≈0.118 is intriguing but cannot be promoted to a prediction without an independent Λ3. No gauge unification predicted — falsifiable.
Remaining gaps:Independent derivation of SU(3) crystallization scale Λ3Connecting α3/α2=2 ratio to measurable αs
Frameworksin2θW=1/3 at algebraic scale (from C⊂H embedding). Fitted to experiment by choosing ΛEW. Two-loop: ΛEW=1.26×1010 GeV (3.3% shift from 1-loop).
Algebraic boundary condition sin2θW=1/3 is a genuine structural prediction. The low-energy value is fitted (1 parameter). Two-loop analysis confirms 1-loop is reliable (3.3% shift in ΛEW).
Remaining gaps:Independent derivation of ΛEW from bootstrap dynamics
Electroweak Sector
vHiggs VEV (electroweak scale) Mechanism Only
SM valuev=246.22±0.04 GeV
FrameworkMechanism derived (Coleman-Weinberg coherence crystallization, top-quark loop dominance). Numerical value v≈246 GeV requires full RG flow of coherence Lagrangian.
The instability condition (6yt2>9g2/4+3λ) is rigorous. Hierarchy protection via bootstrap dimensional transmutation — no SUSY needed.
Remaining gaps:Computing v from coherence Lagrangian RG flow
mhHiggs boson mass Mechanism Only
SM valuemh=125.10±0.14 GeV
Frameworkmh=2λv. Both λ and v follow from the coherence potential shape near crystallization, but neither is computed from first principles.
The formula is exact; the inputs (λ, v) are not independently predicted.
Remaining gaps:Higgs self-coupling from coherence potential
λHiggs self-coupling Free
SM valueλ≈0.13 (from mh=125 GeV)
FrameworkDepends on shape of coherence potential near crystallization. Not independently predicted.
Requires non-perturbative treatment of the coherence potential at the crystallization transition.
SM value(not a SM parameter — implicit in Yukawa couplings)
FrameworkA point on S2 specifying the Higgs crystallization direction relative to the three generation winding axes. Two free real parameters satisfying cos2α1+cos2α2+cos2α3=1.
The crystallization direction determines the intra-type mass hierarchy: the three masses within each fermion type (e.g., u,c,t) follow from yk∝exp(−αk/geff2) with the same three angles αk but a type-specific effective coupling geff. The inter-type mass splittings (why mt=mb=mτ within each generation) require the CKM and PMNS rotations, which relate the distinct winding-axis triples for up-type, down-type, and lepton sectors (Proposition 5.2 of Three Generations). Numerical testing confirms that the three fermion types have incompatible geometric ratios R=ln(m3/m2)/ln(m2/m1): Rup≈0.91, Rdown≈1.31, Rlepton≈0.53. A shared crystallization direction with type-specific couplings fits each mass to within a factor of ~1.4 (RMS log error 0.33). The original claim of '2 parameters replacing 9 Yukawa couplings' is overstated; the actual parameter content is n^EW (2 DOF) + CKM/PMNS rotations (7–9 DOF) + effective coupling ratios.
Remaining gaps:Deriving n^EW from bootstrap dynamics or crystallization energetics
mWW boson mass Derived Exact given v and θW
SM valuemW=80.36±0.01 GeV
FrameworkmW=gv/2 — follows exactly from electroweak breaking once v and g are known.
Not an independent parameter — determined by v and gauge couplings.
mZZ boson mass Derived Exact given mW and θW
SM valuemZ=91.188±0.002 GeV
FrameworkmZ=mW/cosθW — follows exactly from electroweak breaking.
Not an independent parameter — determined by v and gauge couplings.
Quark Masses
mtTop quark mass Mechanism Only
SM valuemt=172.69±0.30 GeV
Frameworkmt=ytv/2 where yt∝exp(−α3/gEW2). Third generation most aligned with EW axis, hence heaviest. Now sharpened at the Lagrangian level by Coherence Bounces (Class A bounces): αk identified with Euclidean bounce actions in winding-angle configuration space.
All quark masses share the same mechanism: yk∝exp(−αk/g2), with α1>α2>α3. The exponential hierarchy is rigorous; the WKB (Euclidean bounce) structure is now explicit at the Lagrangian level via Coherence Bounces Step 3. Specific αk values remain to be computed from winding geometry.
Remaining gaps:Winding geometry computation of α3
mcCharm quark mass Mechanism Only
SM valuemc=1.27±0.02 GeV
FrameworkSecond generation: intermediate alignment with EW axis. Ratio mt/mc∼exp((α2−α3)/g2)∼130.
See top quark entry for shared mechanism.
muUp quark mass Mechanism Only
SM valuemu=2.16±0.07 MeV
FrameworkFirst generation: least aligned with EW axis, hence lightest. Ratio mc/mu∼600 consistent with mechanism.
See top quark entry for shared mechanism.
mbBottom quark mass Mechanism Only
SM valuemb=4.18±0.03 GeV
FrameworkThird generation down-type. Yukawa from winding geometry overlap with EW axis in down-type sector.
See top quark entry for shared mechanism.
msStrange quark mass Mechanism Only
SM valuems=93±5 MeV
FrameworkSecond generation down-type.
See top quark entry for shared mechanism.
mdDown quark mass Mechanism Only
SM valuemd=4.67±0.07 MeV
FrameworkFirst generation down-type.
See top quark entry for shared mechanism.
Lepton Masses
mτTau mass Mechanism Only
SM valuemτ=1776.86±0.12 MeV
FrameworkThird generation charged lepton. Same winding geometry mechanism as quarks.
See top quark entry for shared mechanism.
mμMuon mass Mechanism Only
SM valuemμ=105.66 MeV
FrameworkSecond generation charged lepton.
See top quark entry for shared mechanism.
meElectron mass Mechanism Only
SM valueme=0.511 MeV
FrameworkFirst generation charged lepton. Lightest because most misaligned from EW axis.
See top quark entry for shared mechanism.
mνNeutrino masses (3) Constrained Ordering derived; absolute scale open
SM valueΔm212=7.5×10−5 eV², ∣Δm322∣=2.5×10−3 eV²
FrameworkType-I seesaw: mν=mD2/MR with MR∼yRv at EW scale (not GUT). Normal ordering m1<m2<m3 rigorously derived. Majorana nature from pseudo-real SU(2)L, now realized at the Lagrangian level by Spinor Coherence Lagrangian Theorem 5.3. Seesaw ratio identified with a ratio of Euclidean WKB bounce actions (Coherence Bounces Proposition 4.2). Absolute scale requires εν overlap coefficient.
Framework-distinctive prediction: MR∼102–103 GeV — eleven orders of magnitude below standard GUT seesaw (∼1014 GeV). Accessible to LHC / HL-LHC / FCC sterile-neutrino searches. Also falsifiable via Majorana nature (0νββ at LEGEND-1000, nEXO) and normal ordering (JUNO/DUNE).
Remaining gaps:Absolute mass scale from winding geometry (εν coefficient)Majorana phases α1,α2 from A5 breaking (extends Mixing Angles Step 6, currently covering only Dirac phase δ)
Mixing Parameters
θCKMCKM mixing angles (3) Mechanism Only Hierarchy (small angles) derived; values not computed
SM valueθ12≈13°, θ23≈2.4°, θ13≈0.2°
FrameworkSmall angles explained by steep quark mass hierarchy: θij∼Vij/(mi−mj). A5 symmetry breaking determines structure. Quantitative values require winding geometry.
Near-diagonal CKM structure is a rigorous consequence of the steep mass hierarchy.
Remaining gaps:A5 channel selection for quark sectorRG running from symmetry scale
δCKMCKM CP-violating phase Constrained Existence derived; value from discrete set
SM valueδ≈69° (1.20±0.08 rad)
FrameworkNonzero phase geometrically unavoidable with 3 generations (Kobayashi-Maskawa). Discrete value from A5 breaking channel. Existence rigorous; specific value requires channel selection.
CP violation requires ≥3 generations — this is a theorem, not a postulate.
FrameworkLarge angles from mild neutrino mass hierarchy. Golden ratio prediction: tanθ12=1/φ→θ12≈31.7°. θ23≈π/4≈45°. θ13 small (controlled by A5 breaking parameter).
Golden ratio prediction (tanθ12=1/φ) is the most precise semi-quantitative result. Falsifiable by precision PMNS measurements.
Remaining gaps:Higher-order A5 correctionsRG running from symmetry scale to measurement scale
Predicts no QCD axion — all axion searches (ADMX, CASPEr, IAXO) should return null. Falsifiable.
Remaining gaps:Formal proof that octonionic bundles have trivial instanton moduli space
Cosmological
ΛCosmological constant Mechanism Only Sign, bound, and equation-of-state derived; per-level formula Λn=12/(cTn)2; numerical value at our observer level open
SM valueΛ≈10−56cm−2
FrameworkObserver-level-indexed: at bootstrap level n, Λn=12/(cTn)2, equivalently Λneff=3π/(S(n)ℓP2) (Observer Loop Viability Step 8 Definition 8.2). Sign Λ≥0 and Planck-scale upper bound Λ<3/ℓP2 are derived. Equation of state w=−1 is the unique time-independent fixed point. The ∼10122 Planck-to-observed ratio is the obstruction class of the observer-indexed spacetime sheaf; cross-level ratio within a given level is ∼1/ΩΛ≈1.43 (OLV Proposition 8.7).
The ∼10122 hierarchy is reframed as the obstruction class of the observer-indexed spacetime sheaf rather than a fine-tuning puzzle. Computing the class is a concrete categorical-cohomology target. The partition equation C0=∑Δcn+SH is an identity (OLV Proposition 8.8) — a genuine constraint requires computing ∑Δcn independently from SM structure; double-saturation is the most concrete proposed route. Deviation factor: the observed Λ sits at 1/ΩΛ≈1.43 above OLV Corollary 8.11's lower bound Λ≥3π/(C0ℓP2). This factor is a cosmic-evolution quantity (tracking ΩΛ at the current epoch as it approaches 1 in the far future, per OLV Proposition 7.5 caveat), not a framework-fundamental ratio. The framework bounds ΩΛ∈[0.5,1) via the holographic bound on structural coherence; the specific observed 0.7 is epoch-dependent and is not pinned by existing framework structure without either the geometry functor (OLV Gap 5) or a cosmic-epoch selection principle.
Remaining gaps:Obstruction class computation (hard-open)Observer-level identification for the measured ΛDouble-saturation boundary condition (OLV Conjecture 8.9) — literal form is framework-excluded because the dominant structural regime of the bridge is epoch-dependent (Mass Hierarchy Step 7 Remark); a reformulated epoch-conditional version requires the geometry functor (OLV Gap 5) and/or a cosmic-epoch selection principle