Particle Physics

Particle physics is the study of the fundamental constituents of matter and the forces between them. Its standard account is the Standard Model, a quantum field theory formulated between roughly 1961 and 1975, which describes matter as built from twelve fermions — six quarks and six leptons — interacting through force-carrying bosons, with masses conferred by the Higgs field.

This wiki holds a large body of work disputing that account: Category:Particle Physics catalogues about 190 items, including 29 researchers. This page gives the standard account, then sets out the criticisms — both those raised from inside the mainstream and those made by the researchers documented here.

The standard account

The Standard Model is, on its own terms, the most precisely tested theory in the history of science. It is worth being specific about that before criticising it, because the criticisms only bite where the successes stop.

Quantum Electrodynamics predicts the electron's anomalous magnetic moment to about one part in 10¹², in agreement with measurement — the most accurate confirmed prediction ever made.
The W and Z bosons were predicted, with their masses, from electroweak theory before they were found at those masses in 1983.
The top quark's mass was inferred from precision electroweak fits before its direct observation in 1995.
The Higgs boson, predicted in 1964, was observed in 2012 by two independent detectors in several decay channels, and its couplings have since been found to scale with particle mass as the theory requires.

Against this, the theory has an acknowledged structural weakness: it contains of the order of nineteen to twenty-six free parameters — masses, mixing angles, coupling constants — that it does not predict but must take from experiment. It says nothing about gravity, and nothing about why there are three generations of matter or why their masses span twelve orders of magnitude.

Criticism from within the field

The most important thing to understand about the current state of particle physics is that its deepest critics are not outsiders. Since roughly 1975 the Standard Model has been repeatedly confirmed and never superseded, and the theoretical programmes built to go beyond it have not been confirmed at all.

Hossenfelder and Lost in Math

Sabine Hossenfelder, a theoretical physicist, has become the most widely heard of these critics. Her book Lost in Math: How Beauty Leads Physics Astray (2018) argues that four decades without new foundational data have been filled with aesthetic criteria — simplicity, elegance, "naturalness" — which are subjective, have no track record of success, and are not evidence. Supersymmetry, grand unification and the multiverse were built on them and have not been found.

Her published statement of the problem is "Science needs reason to be trusted" (Nature Physics 13, 316–317, 2017), which argues that championing theory without demanding empirical evidence amounts to ignoring the facts, and that the overproduction of unverified theories in theoretical particle physics is corrosive of public trust.

In February 2025 she published a video, "I was asked to keep this confidential", in which she reads out an email she had been asked not to make public, presenting it as evidence of how the field handles internal criticism. In the video's description she explains why she had deliberately placed the 2017 comment in a paywalled journal rather than on the arXiv: so that she could later demonstrate she had raised the problem inside the community before taking it to a general audience — anticipating the objection that she had not.

Video: I was asked to keep this confidential (Sabine Hossenfelder, 15 February 2025)

Other critics inside the mainstream

Lee Smolin's The Trouble with Physics (2006) and Peter Woit's Not Even Wrong (2006) made related arguments about string theory's unfalsifiability and the sociology of the field. George Ellis and Joe Silk's 2014 comment in Nature, "Defend the integrity of physics", warned against relaxing the requirement of testability. The failure of the LHC to find supersymmetry at the electroweak scale — the outcome naturalness arguments had led many to expect — is now widely acknowledged within the field as a serious problem for that programme.

Criticism on this wiki

Alexander Unzicker

Alexander Unzicker is the most prominent critic of particle physics catalogued here. His books Bankrupting Physics (2013) and The Higgs Fake (2015) argue that the Standard Model has become over-parameterised and unexplanatory, that none of the century-old riddles has been solved, and that the complexity of collider data analysis places it beyond independent scrutiny. His positive programme is the reverse: a fundamental theory should explain and thereby eliminate the dimensionless constants rather than accumulate them.

Unzicker has also pressed these questions directly to the field's leading figures. His interview with David Gross — the 2004 Nobel laureate whose work on asymptotic freedom is a foundation of quantum chromodynamics — put to him Dirac's large-number hypothesis, the record of supersymmetry's predictions, and Andrew Pickering's Constructing Quarks, which argues that the quark model was as much constructed by the community as discovered. Accounts of the exchange report that it grew sufficiently uncomfortable that Gross removed his microphone. Unzicker publishes these interviews on his channel "The Machian"; readers should watch and judge the exchange for themselves rather than rely on either side's characterisation of it.

Alternative models of the particle

A substantial part of this wiki does not merely criticise the Standard Model but proposes replacements, usually built on extended structure rather than point particles:

Toroidal and ring models — Common Sense Science and the toroidal ring tradition model the electron as a circulating charge ring rather than a point.
Wave models — Milo M Wolff's Wave Structure of Matter replaces the particle with a standing spherical wave.
Composite and sub-particle schemes — Thomas N Lockyer, Osvaldo Domann, Peter Kohut and Wladimir Guglinski each build particles from more elementary constituents.
Ruggero Maria Santilli proposes a generalisation of the underlying mathematics (hadronic mechanics) rather than a new particle inventory.
Eric S Reiter reports experiments he interprets as contradicting the photon and the quantum-jump picture directly.
Franco Selleri worked on the foundations of quantum mechanics and on local-realist alternatives.

Ricardo Carezani's autodynamics rejects the neutrino outright, treating it as an artefact of a mistaken relativistic kinematics — a claim that runs against the direct detection of neutrinos since 1956 and the oscillation results of 1998–2001.

Assessment

Two very different criticisms travel under the same banner, and keeping them apart is essential to reading this material.

The methodological criticism is strong and is largely conceded. A theory with two dozen unexplained parameters is not a finished account of nature; four decades of theory-building beyond it has produced no confirmed prediction; naturalness failed as a guide; and the sociology Hossenfelder describes — where criticism is managed rather than answered — is a real problem that the field's own members document. On this ground the dissident and mainstream critiques converge.

The empirical criticism is much weaker, and this is where the wiki's material is most vulnerable. Claims that the Standard Model's confirmed results are illusory have to contend with predictions made before measurement and confirmed afterward — the W and Z masses, the top quark mass, the Higgs couplings — and with QED's agreement to one part in 10¹². Alternative particle models here have generally not been carried to the point of reproducing those numbers; the honest test to apply to any of them is whether it can compute the electron's magnetic moment, the hydrogen fine structure, or the nuclear binding-energy curve, and most have not attempted it.

The strongest position available to a critic is therefore not that the Standard Model is wrong, but that it is unfinished and has stopped making progress — which is close to what Hossenfelder and Unzicker actually say when stated carefully, and is a position many working particle physicists share.