Deconstruction of the Scalar Paradigm From Effective Quantities to Relational-Informational Structure of Physics within the PJM GTWSSF USC GTCWBK-Y17

short introduction The BK–Y17 article is the main publication of a research package devoted to the limitations of the scalar paradigm in physics. The work develops the projection hypothesis, according to which a single scalar quantity such as mass, energy, resonance width, cross section, Hall coefficient, or a Planck quantity may be a correct effective observable while not exhausting the physical structure of the system. The aim is to formulate a testable research programme in which relational, topological, channel-dependent, and correlational observables are examined as carriers of information not reducible to a single scalar. introduction This publication presents a formal and methodological treatment of the reduction of complex physical structures to scalar quantities. The starting point is the distinction between a scalar as a correct measured or effective parameter and the fuller physical structure from which this parameter is reconstructed, projected, or derived in an observational procedure. The central element of the work is the projection hypothesis: Xₛcalar = PX (G, T, R, D, I, C) where Xₛcalar denotes an observable scalar quantity, PX the projection operator to a selected observable, G geometry, T topology, R coupling relations, D dynamics, I structural information understood as compatibility and admissibility conditions of configurations, and C observational, decay, detection, and reconstruction channels. This equation does not replace the Standard Model, general relativity, QCD, nuclear physics, condensed matter physics, or measurement theory. It provides a formal expression of the thesis that a scalar can be a projection of a fuller structural object rather than its complete description. In the article, the projection operator is interpreted as a class of known reduction procedures: expectation value of an observable, partial trace over hidden degrees of freedom, marginalization of relational variables, renormalization coarse-graining, or an effective observational operator including process dynamics, final-state channel, detector response, reconstruction, and statistical fitting. The argument covers sectors and examples such as the Planck scale, mass, fundamental constants, the t tbar threshold, the Roper resonance, the Higgs sector, chirality, neutrinos, Hall phenomena, and response tomography. As the leading numerical closure, the article introduces the dimensionless relational-width indicator of the Roper resonance, CR = GammaR / MR. For the reference values used in the demonstration, MR = 1440 ± 30 MeV and GammaR = 350 ± 100 MeV, one obtains CR = 0. 243 ± 0. 070. Relative to the model threshold Ccrit = 0. 10, this gives PiR = CR / Ccrit = 2. 43 ± 0. 70. This result is not treated as evidence for the USC hypothesis, but as a falsifiable example showing that the central-mass scalar can be measurement-correct and structurally incomplete at the same time, because it does not explicitly encode width, decay channels, and amplitude dynamics. The article serves as the main document of the BK–Y17 series. Detailed developments of the projection apparatus, numerical predictions, calibrations, the Planck-scale map, and the operator-geometric reconstruction of lost degrees of freedom are presented in three technical-mathematical annexes: BK–Y17A, BK–Y17B, and BK–Y17C. These annexes should be treated as formal and computational complements to the main work. The aim of the publication is not to replace existing physical theories, but to establish a test programme: if, after controlling for known standard parameters, relational, topological, channel-dependent, or correlational observables provide independent information relative to a single scalar, the projection hypothesis is strengthened sectorally; if they do not provide such information, it is weakened or falsified sectorally. keywords scalar paradigm; effective quantities; mass; energy; projection operator; Universal Structural Code; PJM; GTWSSF; USC; GTCW; response tomography; Roper resonance; Higgs sector; chirality; neutrinos; Hall phenomena; Planck scale; information geometry; sectoral falsification