What Happens When Matter and Antimatter Annihilate?

  • Context: Graduate 
  • Thread starter Thread starter humsafar
  • Start date Start date
  • Tags Tags
    Antimatter
Click For Summary

Discussion Overview

The discussion revolves around the annihilation of matter and antimatter, specifically focusing on various particle interactions such as proton-antineutron and neutron-antiproton annihilations. Participants inquire about the outcomes of these annihilations, the nature of antimatter, and the forces acting on it, as well as the production of gluons. The scope includes theoretical and conceptual aspects of particle physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants ask about the results of annihilation between specific particles, such as proton-antineutron and neutron-antiproton.
  • There is a request for information on other annihilation processes, including nucleon-antinucleon and hydrogen-antihydrogen interactions.
  • Questions are raised regarding the fundamental forces acting on antimatter and how it differs from matter.
  • One participant suggests that annihilation can only occur between a particle and its corresponding antiparticle, indicating a two-stage process for certain interactions.
  • Another participant inquires about the possibility of hydrogen nuclei annihilating with antihydrogen nuclei, questioning the specifics of these interactions.

Areas of Agreement / Disagreement

Participants express differing views on the nature of annihilation processes, with some asserting that certain interactions are possible while others challenge the clarity of the original questions. The discussion remains unresolved regarding the specifics of annihilation outcomes and the conditions under which they occur.

Contextual Notes

Some questions lack clarity, particularly regarding the conditions for annihilation and the definitions of the particles involved. There are unresolved assumptions about the processes described, such as the stages of decay and the nature of the interactions.

Who May Find This Useful

This discussion may be of interest to students and researchers in physics, particularly those focused on particle physics and antimatter research.

humsafar
Messages
36
Reaction score
0
Some Questions regarding antimatter...Please help

Hi there...I have some questions please help...

Q1)I need to know the result of annihilation of the following particles...
proton-antineutron
neutron-antiproton

Q2)If possible, please mention other annihilation as well such as nucleon-antinucleon, hydrogen-antihydrogen

Q3)In physics, i need to know all about antimatter...i.e the forces acting on it...also?
how it is different from matter, the em force, gluon force of antimatter, and all other in detail...

Q4)In physics, is there any way to produce gluon?

Q5) After big bang, matter and antimatter were equally produced, but they annihilated each other, But in which form did annihilation happened? (Quark or hadron)
 
Physics news on Phys.org


Perhaps you should share a little more with us. Is this homework?
 


I'm an amateur researcher currently doing my bachelors in computer science, I'm very interested in antimatter research
 


humsafar said:
Hi there...I have some questions please help...

Q1)I need to know the result of annihilation of the following particles...
proton-antineutron
neutron-antiproton

Q2)If possible, please mention other annihilation as well such as nucleon-antinucleon, hydrogen-antihydrogen

Q3)In physics, i need to know all about antimatter...i.e the forces acting on it...also?
how it is different from matter, the em force, gluon force of antimatter, and all other in detail...

Q4)In physics, is there any way to produce gluon?

Q5) After big bang, matter and antimatter were equally produced, but they annihilated each other, But in which form did annihilation happened? (Quark or hadron)

Question 1.is unclear.You seem to be suggesting that a proton can annihilate with an antineutron and a neutron with an antiproton.
 


I'm asking whether a proton-antineutron annihilation or antiproton-neutron annihilation is possible? if so then what is the result of these annihilations...
 


Annihilation can occur only between a particle and its antiparticle such as a proton with an antiproton and a neutron with an antineutron.An encounter between a proton and antineutron can result in annihilation but this would be a two stage process where first the antineutron decays by beta plus emission to form an antiproton plus a positron and neutrino.With the neutron antiproton reaction the neutron would first have to undergo beta minus emission to form a proton,electron and antineutrino.
 


Please try to answer other questions as well...Thank you
 


Any info on hydrogen-antihydrogen annhiliation? what of nucleus of hydrogen rather than proton annihilates with antinucleus of antihydrogen...is it possible?
 


humsafar said:
Any info on hydrogen-antihydrogen annhiliation? what of nucleus of hydrogen rather than proton annihilates with antinucleus of antihydrogen...is it possible?

Antihydrogen is simply an antiproton with an antielectron. They will annihilate nicely with the proton and electron of a hydrogen atom.
 

Similar threads

Undergrad Matter/antimatter collisons between "unlike" particles?
  • · Replies 4 ·
Replies
4
Views
2K
High School Matter/antimatter hybrid atomic structures?
  • · Replies 21 ·
Replies
21
Views
4K
Undergrad Could the primeval antimatter "be among us"?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Matter/antimatter annihilation and conservation of mass
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad How we are in a matter dominated universe (without antimatter annihilation)
  • · Replies 13 ·
Replies
13
Views
3K
High School What happens when gamma rays with ultra-high energies interact with matter?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What Happens When Helium and Anti-Hydrogen Interact?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What happens when a large amount of antimatter gets in contact with matter ?
  • · Replies 10 ·
Replies
10
Views
5K
Graduate Why annihilation of matter/antimatter occurs in dual pairs?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Understanding the mass of ordinary matter
  • · Replies 14 ·
Replies
14
Views
2K