Researching Pi-N Scattering and Virtual Photon Excitation of Neucleons

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SUMMARY

Pi-N scattering is a critical area of research for understanding nucleon resonance, particularly in experiments involving relativistic charged pions. These pions, with a momentum of approximately 1 GeV, can travel up to 80 meters before decaying, which is significant for experimental setups. The decay time for charged pions is approximately 2.6 x 10-8 seconds, allowing for controlled collisions with nucleons. Current experiments, such as those at GSI in Darmstadt, Germany, utilize pion beams to explore these interactions effectively.

PREREQUISITES
  • Understanding of Pi-N scattering principles
  • Familiarity with relativistic particle physics
  • Knowledge of pion decay processes
  • Experience with experimental setups in high-energy physics
NEXT STEPS
  • Research the experimental techniques used in pion-beam experiments at GSI
  • Study the electro-weak interactions governing pion decay
  • Explore the mathematical modeling of decay lengths in particle physics
  • Investigate the implications of nucleon resonance in high-energy collisions
USEFUL FOR

Physicists, researchers in particle physics, and students studying high-energy interactions will benefit from this discussion, particularly those focusing on nucleon resonance and pion behavior in experimental settings.

zhangyang
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Pi-N scattering is useful for research on neucleon resonance.But pi meson is not stable,how could it be controlled to collide with a neucleon?

While,virtual photon is also used to excite neucleon,it is internal line particle,which is determined by a reaction,so how hard could it be controlled accurately?
 
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Sorry ,there is some error in my operation,I want to delate one of them.
 
Pi-N scattering in which experiment?
For example you can get pi-N scattering by placing some "target" near the creation of the pion... (in fact a relativistic charged pion=momenta over some ##m_\pi##'s, can travel for some meters before decaying. A momentum p~1GeV~10##m_\pi## would bring the pion to travel for about L~80meters before decaying)
 
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