How Much of the Universe's Gravity is Due to the Strong Force Versus Rest Mass?

  • Context: Graduate 
  • Thread starter Thread starter EskWIRED
  • Start date Start date
  • Tags Tags
    Gravity Hadron Mass
Click For Summary
SUMMARY

The discussion centers on the relationship between gravity, strong force, and rest mass in hadrons. It highlights that the mass of hadrons is predominantly derived from the energy associated with the strong interaction rather than the rest mass of valence quarks. Participants express concern and curiosity about the implications of this understanding, particularly regarding the contributions of the strong force and rest mass to the overall gravity in the universe. Ultimately, it is concluded that while the strong force plays a significant role, most of the universe's gravity is attributed to dark matter.

PREREQUISITES
  • Understanding of mass-energy equivalence
  • Familiarity with quantum chromodynamics (QCD)
  • Knowledge of hadron structure and valence quarks
  • Basic concepts of dark matter in cosmology
NEXT STEPS
  • Research the implications of mass-energy equivalence in particle physics
  • Study quantum chromodynamics and its role in hadron mass
  • Explore the nature and properties of dark matter
  • Investigate the gravitational effects of strong force interactions
USEFUL FOR

Physicists, cosmologists, and students interested in particle physics and the fundamental forces of nature.

EskWIRED
Messages
99
Reaction score
0
I cam across this statement in Wikipedia:

Note that the mass of a hadron has very little to do with the mass of its valence quarks; rather, due to mass–energy equivalence, most of the mass comes from the large amount of energy associated with the strong interaction.

I find it somewhat disturbing and profound, if true.

It seems to me that most of the time, we think of matter as having gravity as one of its properties. But the quoted text says that most of the mass of hadrons is produced not by the rest mass of the constituent quarks (i.e., the matter), but instead by the energy associated with the strong interaction holding that matter in proximity.

Is most of the gravity we are aware of in the universe produced by the energy associated with the strong force? What are the proportions? How much gravity can be attributed to rest mass, and how much to the strong force?
 
Physics news on Phys.org
Strong force comes in second. Most of the gravity in the universe comes from dark matter.
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 8 ·
Replies
8
Views
7K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 21 ·
Replies
21
Views
3K
  • · Replies 46 ·
2
Replies
46
Views
8K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 73 ·
3
Replies
73
Views
16K