Particles

beginner guide to baryons

A Beginner Physics Guide to Baryon Particles

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Baryon Introduction At the beginning of the 20th century, it was thought that all matter consisted of only three particles: the electron, the neutron,…
What are virtual particles

Virtual Particles Explained — Quantum Field Theory

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Definition / Summary Virtual particles are a mathematical device used in perturbation expansions of the S-operator (transition matrix) for interactions…
epsresults

Find Out the Results Shown at 2017 CERN EPS Conference

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The EPS conference was a week ago, and many new results and future plans were shown. A good general overview has been collected by Paris Sphicas in his…
m-theory

Super p-Brane Theory Emerging from Super Homotopy Theory

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  A notorious open problem: What is the non-perturbative theory formerly known as Strings?We still have no fundamental formulation of “M-theory”…
quantumparticle

Spectral Standard Model and String Compactifications

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 The Connes-Lott-Chamseddine-Barrett model is the observation that the standard model of particle physics -- as a classical action functional,…
Supersymmetry

Learn About Supersymmetry and Deligne’s Theorem

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 In 2002, Pierre Deligne proved a remarkable theorem on what mathematically is called Tannakian reconstruction of tensor categories. Here…
LHC4

LHC Part 4: Searching for New Particles and Decays

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 The LHC experiments are in full swing collecting data this year (more information in the forum), and a while ago the collaboration of the…
virtualparticlesmyths

Top Misconceptions about Virtual Particles

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Introduction This Insight Article is a sequel to the Insight Article ''The Physics of Virtual Particles'', which contains an exposition of definitions…
virtualparticles

Learn the Physics of Virtual Particles in Quantum Mechanics

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In discussions on the internet (including a number of Wikipedia pages) and in books and articles for non-experts in particle physics, there is considerable…
seeelectron

Have Scientists Seen an Electron? How We Detect Them

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Have Scientists Seen an Electron? Why Seeing Isn't Enough This article is not about literally seeing a single electron with your eye; it addresses the…
photonmass

Do Photons have Mass?

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Do photons have mass? The quick answer: NOCommon source of confusion However, this is where it gets a bit confusing for most people. This is because,…
supergravity

Emergence From the Superpoint

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 In the previous article we saw that the generalization of super-Lie algebras to homotopy super-Lie n-algebras (super L-infinity algebras)…
liealgebra

Homotopy Lie-n Algebras in Supergravity

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 The previous article in this series claimed that the mathematics of the 21st century that had fallen into the 1970s in the form of string…
string theory

It Was 20 Years Ago Today — the M-theory Conjecture

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  While the world didn't end, after all, 15 years back at the turn of the millennium, in hindsight it is curious that, almost unnoticed,…
neutrino

Learn About Neutrino Masses and Speed

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It was hard to miss the 2011 OPERA neutrino speed measurement that indicated superluminal neutrino speeds (and turned out to be a measurement error), but…
garrett

Garrett Lisi’s Superparticle Bet With Frank Wilczek

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There is an interesting story unfolding in particle physics. The main motivation for building the Large Hadron Collider was to search for new particles.…
LHC quiz

LHC Quiz: Think You Know about the LHC?

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News of the LHC progress has dazzled scientists and hobbyists alike. It's now time to show just how much you know about the operation.Please share…
LHC

LHC Part 3: Protons as Large as a Barn

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Introduction See also part 1 and part 2 of the series.The LHC commissioning phase is coming to and end. On Wednesday May 20th 2015, the first collisions…

LHC Part 2: Commissioning

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View All PartsPart 1: LHC about to restart - some FAQs Part 2: Commissioning Part 3: Protons as Large as a Barn Part 4: Searching for New Particles…