Particle Interactions

Question 1

The electromagnetic force

Answer 1

When two objects interact, they exert equal and opposite forces on each other. Momentum is transferred between the objects by these forces, if no other forces act on them.
the electromagnetic force between two charged objects is due to the exchange of virtual photons.they are virtual because we can’t detect them directly. the two protons is represented by a wave.

Question 2

Neutrino and anti neutrino interactions

Answer 2

A neutrino can interact with a neutron and make it change into a proton. (an electron) is created and emitted as a result
• An antineutrino can interact with a proton and make it change
Into a neutron. (a positron) is created and emitted as a result of the change.

Question 3

What are the reaction a neutrinos and antineutrons due to

Answer 3

These interactions are due to the exchange of particles referred to as W bosons. Unlike photons, these exchange particles:
• have a non-zero rest mass
• hase a very short range of no more than about 0.001 fm
• are positively charged (W+ boson) or negatively charged(W- boson)

Question 4

What do bosons decay into

Answer 4

the W- boson decays into a ß- particle and an antineutrino
• the W+ boson decays into a ß+ particle and a neutrino.

Question 5

Electron capture

Answer 5

Sometimes a proton in a proton-rich nucleus turns into a neutron as a result of interacting through the weak interaction with an inner-shell electron from outside the nucleus (electron capture).
The same change can happen when a proton and an electron collide at very high speed. In addition, for an electron with sufficient energy, the overall change could also occur as a W- exchange from the electron to the proton.