Is There a 5th Force in String Theory and What Does it Mean for Space?

In summary: It is believed that the Higgs field gives particles their mass through the Higgs mechanism, which is still a hypothesis and has yet to be proven. Scientists are hoping that the Large Hadron Collider (LHC) at CERN will be able to provide evidence for or against the existence of the Higgs particle.
  • #1
waht
1,501
4
I read in Elegant Universe there is a 5th force predicted by the string theory. Anybody know what it is ?
 
Physics news on Phys.org
  • #2
The "5th force" proposed in the Elegant Universe is the Higgs field, which is thought to permeate space. The Higgs boson is the carrier particle of the Higgs field. This hypothesis says that the Higgs field is what gives particles their mass through the Higgs mechanism.

The Higgs particle is as yet a hypothetical particle invoked to explain why the carriers of the electroweak force (the W and Z bosons) have mass. Quantum electrodynamics requires the photon to have zero mass (which is good because indeed it does), but early attempts to develop and electroweak theory also required the bosons to be massless, (which is bad because then they would be as abundant as the photon in the universe, which indeed they are not). Peter Higgs and two Belgian researchers (who worked independently of Higgs) come across the same idea for settling the puzzle in 1964. If there is an otherwise undetectable field filling the universe (now called the Higgs field), it could have associated with it a previously unknown kind of boson, the Higgs particle, which has mass. This would allow any photon-like particle to become massive by swallowing up a Higgs boson. It is possible, but not proven, that all-massive particles get their mass this way.

As of now, the Higgs boson has yet to be proven to exist. Scientists say that the Large Hadron Collider (LHC) at CERN, which opens in 2007, will be able to prove or disprove the existence of the Higgs particle.

http://en.wikipedia.org/wiki/Higgs_field
http://hepwww.ph.qmw.ac.uk/epp/higgs1.html
http://www.physlink.com/Education/AskExperts/ae304.cfm
 
Last edited by a moderator:
  • #3
Sempiternity said:
The "5th force" proposed in the Elegant Universe is the Higgs field, which is thought to permeate space. The Higgs boson is the carrier particle of the Higgs field.

What do you mean by permeate space?
 
  • #4
<<<GUILLE>>> said:
What do you mean by permeate space?

It means the Higgs field is literally everywhere (including the places where there's no matter or energy).
 

1. What is the 5th force in string theory?

The 5th force in string theory is a hypothetical force that is predicted by some versions of string theory. It is thought to be a fundamental force of nature, alongside gravity, electromagnetism, and the strong and weak nuclear forces.

2. How is the 5th force different from the other four forces?

The 5th force is thought to be different from the other four forces in several ways. It is predicted to have a much longer range than the other forces, and it may have a different type of particle associated with it. Additionally, the 5th force may only be detectable at very small scales, making it difficult to observe.

3. What evidence is there for the existence of a 5th force?

Currently, there is no solid evidence for the existence of a 5th force. Some experiments have shown potential hints of a 5th force, but these results have not been consistently replicated. Further research and experimentation is needed to confirm its existence.

4. How would the existence of a 5th force impact our understanding of the universe?

If a 5th force is discovered, it would greatly impact our understanding of the universe and the laws of physics. It would require a new framework to incorporate this force into our current understanding of the four fundamental forces. It could also potentially help explain phenomena that cannot be fully explained by the four known forces.

5. Can the 5th force be tested or observed?

Scientists are actively searching for ways to test and observe the 5th force. Some proposed experiments involve studying the behavior of particles at extremely high energies or using precision measurements of the gravitational constant. However, due to its predicted small scale and weak strength, detecting the 5th force may prove to be a difficult task.

Similar threads

  • Beyond the Standard Models
Replies
1
Views
175
  • Beyond the Standard Models
Replies
26
Views
659
  • Beyond the Standard Models
Replies
31
Views
2K
  • Beyond the Standard Models
Replies
2
Views
2K
Replies
47
Views
4K
  • Beyond the Standard Models
Replies
3
Views
1K
  • Beyond the Standard Models
Replies
13
Views
1K
  • Beyond the Standard Models
Replies
1
Views
1K
  • Beyond the Standard Models
Replies
28
Views
2K
  • Beyond the Standard Models
Replies
11
Views
3K
Back
Top