How does a collider know both the energy and position of the particle?

Click For Summary
SUMMARY

Colliders utilize precise ejection mechanisms to determine both the energy and position of particles. The ejection occurs through a pinhole, allowing operators to measure momentum and position simultaneously, albeit with limitations imposed by the Heisenberg uncertainty principle. High momentum particles exhibit localized behavior, as small deviations in momentum lead to significant changes in position, governed by Planck's constant. This interplay between momentum and position measurement is crucial for understanding particle behavior in colliders.

PREREQUISITES
  • Understanding of the Heisenberg uncertainty principle
  • Familiarity with Planck's constant
  • Knowledge of particle momentum and energy concepts
  • Basic principles of collider physics
NEXT STEPS
  • Research the Heisenberg uncertainty principle in detail
  • Study the implications of Planck's constant in quantum mechanics
  • Explore the mechanics of particle ejection in colliders
  • Learn about momentum and energy conservation in high-energy physics
USEFUL FOR

Physicists, students of quantum mechanics, and anyone interested in the operational principles of particle colliders and the fundamental concepts of energy and position measurement in physics.

jshrager
Gold Member
Messages
24
Reaction score
1
Presumably a collider has some sort of pinhole out of which particles get ejected in a particular direction, and the energy (momentum) with which they are ejected is supposedly known. So, the operators/designs of the instrument know both the position (at the ejection pinhole, or whatever) and momentum (energy) of these particles...uh...how?! Maybe they really don't know them both as precisely as one (or at least I) am lead to believe? (This is not to mention ejection time!)
 
Physics news on Phys.org
Colliders shoot particles at very *high* momentum at each other. The uncertainty principle is about the *spread* of momentum, related to position measurement and Planck's constant, a very *tiny* number.


So if you have high momentum particle, you have automatically very localized particles, since already very small deviations from their high momentum are large compared to Planck's constant which enters the uncertainty relation.
 
Ah. Great. Thanks!
 

Similar threads

High School Measuring momentum and position in particle colliders
  • · Replies 12 ·
Replies
12
Views
2K
High School Heisenberg's indeterminacy principle with non-point particles ?
  • · Replies 16 ·
Replies
16
Views
2K
Graduate How Does Position Interact with Spin Angular Momentum in Quantum Mechanics?
  • · Replies 2 ·
Replies
2
Views
2K
High School Can Molecules Have Defined Position and Momentum Before Measurement?
  • · Replies 17 ·
Replies
17
Views
2K
Undergrad Time-energy uncertainty relation
  • · Replies 33 ·
2
Replies
33
Views
4K
Undergrad Momentum-Position vs. Energy-Time Uncertainty Relations
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad What is the true nature of microscopic particles when not interacting?
  • · Replies 4 ·
Replies
4
Views
2K
High School "We cannot measure both position and momentum...."
  • · Replies 16 ·
Replies
16
Views
3K
Undergrad Photons and Heisenberg's Uncertainty Principle
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad How does stimulated emission work in the process of light amplification?
  • · Replies 6 ·
Replies
6
Views
3K