Quarks make the neutrons and protons

  • Context: High School 
  • Thread starter Thread starter benzun_1999
  • Start date Start date
  • Tags Tags
    Neutrons Protons Quarks
Click For Summary

Discussion Overview

The discussion revolves around the nature of quarks and their role in forming protons and neutrons, touching on fundamental particles, composite particles, and theoretical frameworks such as string theory. The scope includes conceptual understanding and technical explanations related to particle physics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants explain that quarks are fundamental constituents of protons and neutrons, with specific combinations of up and down quarks forming these particles.
  • One participant mentions that quarks cannot exist in isolation and always form composite particles known as hadrons.
  • Another participant introduces the concept of string theory, suggesting that quarks and leptons are manifestations of vibrating strings.
  • There is a discussion about the role of gluons, with some participants asserting that gluons are not considered a type of matter, while others correct this by mentioning the theoretical existence of glueballs.
  • One participant expresses concern that technical terms may not be accessible to beginners, highlighting the complexity of the discussion.

Areas of Agreement / Disagreement

Participants express differing views on the role of gluons and the nature of matter, indicating that multiple competing perspectives exist regarding the composition of particles and the implications of string theory. The discussion remains unresolved on several points, particularly concerning the interpretation of gluons and their relation to matter.

Contextual Notes

Some claims depend on specific definitions and theoretical frameworks, such as string theory and the standard model of particle physics, which may not be universally accepted or understood among all participants.

benzun_1999
Messages
260
Reaction score
0
dear reader,
Does anyone know about Quark. i know that quarks make the nutrons and protons. But i still don't understand it clearly.

Benzun
 
Last edited by a moderator:
Physics news on Phys.org
a website

http://blueflag.phys.yorku.ca/yhep/main.html
Here I quote a paragraph from the above website. This website is quite interesting and easy to read.

To start with, there are six types of quarks (plus their six antiquarks), which are coupled into three pairs. They are the up-down, the charm-strange, and the top-bottom (sometimes known as truth-beauty). Another interesting fact about quarks is that you can never find one by itself, as they are always with other quarks arranged to form a composite particle. The name for these composite particles is "hadrons". Quarks, like protons and electrons, have electric charge. However, their electric charges are fractional charges, either 2/3 or -1/3 (-2/3 and 1/3 for antiquarks), and they always arrange to form particles with an integer charge (ie. -1, 0, 1, 2...).

After reading this website, I'm sure you can get lots of information about elementary particles besides quarks.
 
Last edited by a moderator:
All matter is composed of quarks and/or leptons. These are the fundamental particles of matter. For example, look at a simple hydrogen atom. It has a single proton and a single electron. The proton is composed of three quarks (two ups and one down); the electron is a specific type of lepton. A deuterium isotope is a hydrogen atom with a neutron in the nucleus. Like the proton, the neutron is also composed of three quarks (one up and two downs).

String theorists tell us that quarks and leptons are fundamentally composed an identical entity, the string. The characteristic that gives rise to the difference between these two species is the mode of vibration of the said string.

eNtRopY
 
entropy: Haven't you forgotten gluons there?
 
Originally posted by FZ+
entropy: Haven't you forgotten gluons there?

Well, I don't think there is any type of matter that is composed of gluons... so no, I didn't forget gluons.

But what do I know? I am but a mere quantum engineer. The information I have provided is what I remember from sophomore-level modern physics. Typically, I only deal with the theory of quantum mechanics... I don't get into the standard model... and I don't really don't worry about the structure of matter that often.

eNtRopY
 
Last edited by a moderator:
Originally posted by eNtRopY
Well, I don't think there is any type of matter that is composed of gluons... so no, I didn't forget gluons.

But what do I know?

I guess I'm wrong, I have just learned that in theory there exists a particle composed of gluons called a glueball. Suffice it to say, you won't find any ordinary matter composed of gluons.

eNtRopY
 
Last edited by a moderator:
Originally posted by eNtRopY String theorists tell us that quarks and leptons are fundamentally composed an identical entity, the string. The characteristic that gives rise to the difference between these two species is the mode of vibration of the said string.

Yang-mills gauge charges sit at the ends of open strings and are not determined by vibrational degrees of freedom.
 
Originally posted by jeff
Yang-mills gauge charges sit at the ends of open strings and are not determined by vibrational degrees of freedom.

And I'm sure that means so much to the beginner inquiring about what quarks are... jeff.

eNtRopY
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
Replies
1
Views
4K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 24 ·
Replies
24
Views
4K
  • · Replies 17 ·
Replies
17
Views
4K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K