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I read in Elegant Universe there is a 5th force predicted by the string theory. Anybody know what it is ?
The discussion revolves around the concept of a "5th force" in string theory, specifically referencing the Higgs field and its implications for the nature of space. Participants explore the theoretical underpinnings of the Higgs field, its role in particle mass, and the status of the Higgs boson as a hypothetical particle.
Participants generally agree on the identification of the Higgs field as the "5th force," but there are questions and clarifications regarding its implications and definitions, indicating some uncertainty in understanding.
The discussion includes references to the Higgs mechanism and the status of the Higgs boson as a hypothetical particle, with no consensus on its existence as it remains unproven at the time of the discussion.
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.
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.
<<<GUILLE>>> said:What do you mean by permeate space?