Researching Pi-N Scattering and Virtual Photon Excitation of Neucleons

  • Thread starter zhangyang
  • Start date
  • Tags
    Scattering
In summary, Pi-N scattering is a useful tool for studying neucleon resonance, but the instability of the pi meson raises concerns about controlling its collisions with neucleons. Additionally, while virtual photons can also be used to excite neucleons, accurately controlling their interactions can be challenging. There is also the possibility of errors in the experimental operation, as seen in the example of the GSI experiment. The long lifespan of pions allows for them to travel significant distances, making them useful for experiments involving pion beams.
  • #1
zhangyang
58
0
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?
 
Physics news on Phys.org
  • #2
Sorry ,there is some error in my operation,I want to delate one of them.
 
  • #3
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)
 
Last edited:
  • #5
I happened to ask for a confirmation (which I got) yesterday about the formula I had deduced for a similar scenario:
https://www.physicsforums.com/threads/tau-momentum-for-decay-length.816902/
in that formula you could solve for [itex]l_{lab}[/itex] instead of momentum (you can try different momenta [itex]p[/itex]) and [itex]m[/itex] the mass of the pion. The lifetime is given in Vanshee's post above.
 

FAQ: Researching Pi-N Scattering and Virtual Photon Excitation of Neucleons

1. What is Pi-N scattering and virtual photon excitation of nucleons?

Pi-N scattering is a type of interaction between a pion (a subatomic particle) and a nucleon (a proton or neutron). During this interaction, the pion transfers energy and momentum to the nucleon, causing it to change its state. Virtual photon excitation refers to the process of a photon (a particle of light) temporarily creating a pi-N pair, which then interact with each other.

2. Why is researching Pi-N scattering and virtual photon excitation important?

This area of research helps us understand the fundamental building blocks of matter and the forces that govern their interactions. It also has practical applications in fields such as nuclear physics and particle accelerators.

3. How do scientists study Pi-N scattering and virtual photon excitation?

Scientists use high-energy particle accelerators, such as the Large Hadron Collider, to create pions and nucleons and observe their interactions. They also use theoretical models and computer simulations to understand and predict these interactions.

4. What have we learned from studying Pi-N scattering and virtual photon excitation?

Through this research, we have gained a deeper understanding of the strong nuclear force, which is responsible for holding protons and neutrons together in an atom's nucleus. We have also discovered new particles and tested the predictions of theoretical models.

5. What are some current and future developments in this field of research?

Scientists continue to study Pi-N scattering and virtual photon excitation at higher energies and with more precision, using advanced technologies and techniques. They also aim to apply this knowledge to areas such as nuclear energy and medical imaging.

Similar threads

A Timescale of virtual photon interaction in particle scattering
Replies
1
Views
2K
I Are resonances formed in the scattering of a baryon and a meson?
Replies
1
Views
1K
I Reduced mass to bind hyper- and mesonuclei
Replies
1
Views
1K
B Radiation detector types/physics
Replies
24
Views
2K
Peskin & Schroeder - page 5 - Computation of ##\mathcal{M}##
Replies
26
Views
4K
Mie scattering for inhomogeneous medium
Replies
5
Views
1K
I Heuristic for simple two-photon scattering problems
Replies
1
Views
928
I 7Li(p,e+e−)8Be direct proton-capture reaction X17
Replies
7
Views
2K
Cross Section: Quark-Gluon vs. Quark-Photon
Replies
2
Views
2K
Resources for pi-N scattering?
Replies
13
Views
3K

Hot Threads

Recent Insights

Back
Top