Tagged Questions
9
votes
2answers
149 views
What happens in electron-electron collisions?
What are the results of high energy electron electron collisions? Are other particles created?
3
votes
2answers
74 views
Transfer of electron energy to atoms (heating up of matter by absorption of photons)
If an electron absorbs a photon to get exited to a higher energy level, it should either come back to same state or any other lower state by emitting the required photon. How then can there be a net ...
0
votes
2answers
127 views
Why is electron presented in books, pictures as a sphere?
Why is electron presented in books, pictures as a sphere, when in fact it's not?
2
votes
1answer
61 views
A question about how light hits a surface
my question is about how photons travel from a light source and hit an object.
When you look at an object being hit by light the whole surface becomes brighter.
What i'm trying to understand is why ...
15
votes
6answers
1k views
What would happen if Large Hadron Collider would collide electrons?
After some reading about the Large Hadron Collider and it's very
impressive instruments to detect and investigate the collision results,
there is a remaining question.
What would happen if the ...
0
votes
0answers
113 views
Research in Quantum Physics [closed]
I am Suvankar, a student of engienering. My branch is Electrical & Electronics Engineering. Although this is a Physics oriented website, I want to know whether it is possible to do M.Sc. after ...
1
vote
2answers
236 views
A basic confusion about what is an atom
Wikipedia defines atom as
The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.
and defines electron as:
The ...
11
votes
2answers
395 views
What is the mass density distribution of an electron?
I am wondering if the mass density profile $\rho(\vec{r})$ has been characterized for atomic particles such as quarks and electrons. I am currently taking an intro class in quantum mechanics, and I ...
1
vote
2answers
140 views
How important are electromagnetic tidal effects in QFT? Can they be used to determine whether a particle is point-like?
I just did a back-of-the-envelope calculation, which surprised me. I calculated the difference in acceleration (due to repelling like-charges) experienced by two sides of an electron the size of the ...
1
vote
0answers
68 views
Scaling an electron microscope to fit within 1 cubic cm when running multiple parallel scans [closed]
Yes, I'm serious.
What components correspond to an individual scan vrs what components
can be cascaded across all objects?
Ex: The vacuum chamber can be cascaded ( colocate the sample chambers ...
13
votes
1answer
2k views
Are all electrons identical?
Why should two sub-atomic (or elementary particle) - say electrons need to have identical static properties - identical mass, identical charge? Why can't they differ between each other by a very ...
4
votes
3answers
951 views
What is the difference between a neutron and hydrogen?
Differences? They are both an electron and a proton, since the neutron decays to a proton and an electron, what's the difference between a neutron and proton + electron? so is it just a higher binding ...
