Why some particles have no mass even similar sized ones?

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SUMMARY

Photons and electrons are fundamentally different in terms of mass, despite misconceptions about their size. Both particles are classified as point-particles, meaning they possess 'zero size' in a strict sense, but their behaviors are influenced by quantum effects. The distinction lies in the underlying physics: electrons have mass due to their interaction with the Higgs Field, while photons do not possess mass at all. This difference is crucial in understanding particle physics and the principles of Quantum Electrodynamics.

PREREQUISITES
  • Understanding of Quantum Electrodynamics
  • Familiarity with the Higgs Field
  • Basic knowledge of particle physics terminology
  • Concept of point-particles in quantum mechanics
NEXT STEPS
  • Research the principles of Quantum Electrodynamics
  • Study the role of the Higgs Field in particle mass generation
  • Explore the characteristics and behaviors of point-particles
  • Investigate the differences between massless and massive particles
USEFUL FOR

Students and professionals in physics, particularly those focusing on particle physics, quantum mechanics, and theoretical physics. This discussion is beneficial for anyone seeking to understand the fundamental differences between massless and massive particles.

Neon
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Photon have the same size as an electron(i think) but no mass. Gluons also. WHY
 
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I meant gluons have no mass not same size
 
Neon said:
Photon have the same size as an electron(i think) but no mass.

Photons are not the same size as electrons. Technically, assigning a size to either particle is very problematic. Both are considered to be point-particles, which means they are considered to be of 'zero size', but in reality quantum effects tend to smear out the position of either particle based on their wavelength/mass.

Neon said:
WHY

That would require a very complicated mathematical description of Quantum Electrodynamics and the Higgs Field. The simple answer is that electrons simply have mass, and photons don't.
 
Last edited:

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