Tag Archives: quantum chromodynamics

A physics story of infinities, goats and colours

Posted on September 20, 2022 by

When I was writing in August about physicist Sheldon Glashow’s objection to Abdus Salam being awarded a share of the 1979 physics Nobel Prize, I learnt that it was because Salam had derived a theory that Glashow had derived as well, taking … Continue reading →

Posted in Scicomm | Tagged Abdus Salam, charge screening, colour charge, cutoff factor, Kenneth Wilson, off-shell, phase transition, quantum chromodynamics, quark self-energy, regularisation, renormalisation, Sheldon Glashow, virtual particles | Comments Off

Chromodynamics: Gluons are just gonzo

Posted on September 28, 2017 by

One of the more fascinating bits of high-energy physics is the branch of physics called quantum chromodynamics (QCD). Don’t let the big name throw you off: it deals with a bunch of elementary particles that have a property called colour … Continue reading →

Posted in Uncategorized | Tagged Electromagnetism, gluons, Hunter S. Thompson, Large Hadron Collider, particle physics, quantum chromodynamics, quarks, Richard Feynman, strong nuclear force | Comments Off

Colliders of the future: LHeC and FCC-he

Posted on December 30, 2015 by

Because powerful accelerators take at least a decade to realise, physicists have started work on two machines to aid physics research of the future. Continue reading →

Posted in Uncategorized | Tagged Compact Linear Collider, deep inelastic scattering, electroweak theory, Future Circular Collider, Higgs boson, International Linear Collider, LHeC, New Physics, quantum chromodynamics, Sokolov-Ternov effect | Comments Off

On meson decay-modes in studying CP violation

Posted on November 20, 2012 by

In particle physics, CPT symmetry is an attribute of the universe that is held as fundamentally true by quantum field theory (QFT). It states that the laws of physics should not be changed and the opposite of all allowed motions … Continue reading →

Posted in Uncategorized | Tagged Andrei Sakharov, antimatter, B-meson, BaBar experiment, baryogenesis, Belle Experiment, CP-symmetry violation, CPT theorem, flavor oscillations, George Sudarshan, James Cronin, Kaons, mesons, Murray Gell-Mann, Pions, proton decay, quantum chromodynamics, quantum field theory, Robert Marshak, Standard Model of particle physics, Val Fitch | Comments Off

Assuming this universe…

Posted on August 15, 2012 by

Accomplished physicists I have met or spoken with in the last four months professed little agreement over which parts of physics were set-in-stone and which parts simply largely-corroborated hypotheses. Here are some of them, with a short description of the … Continue reading →

Posted in Uncategorized | Tagged bosons, compactification of extra dimensions, gluons, Millennium Prize, non-perturbative string theory, quantum chromodynamics, quantum field theory, Yang-Mills theory | Comments Off