RAS question
Higgs Boson, discovered in 2012, is significant because it:
Correct answer: (A) Explains how particles acquire mass.
The Higgs boson is significant because its 2012 discovery at CERN confirmed the Higgs field mechanism through which fundamental particles acquire mass.
Explanation
The Higgs boson matters because it is tied to the Higgs field, not because it is a machine, fuel or reactor input. CERN explains that elementary particles get mass by interacting with the Higgs field: the stronger the interaction, the heavier the particle. The Higgs boson is a wave in that field, so discovering it at CERN in 2012 confirmed the existence of the mass-giving field predicted by the Brout-Englert-Higgs mechanism. This is the physics behind option A. Peter Higgs and Francois Englert received the 2013 Nobel Prize in Physics for their prediction of this mechanism.
Why the other options are wrong
- (B) The Higgs boson is a fundamental particle associated with the Higgs field, so it does not generate electricity like an energy source or device.
- (C) The Sun is powered by nuclear fusion, while the Higgs boson explains how elementary particles acquire mass through the Higgs field.
- (D) Nuclear reactors use nuclear processes such as fission or fusion, not the Higgs boson as an operating component.
Concept
This tests the Science and Technology syllabus area on landmark discoveries in particle physics. RAS often asks the core significance of a scientific discovery, and here that significance is the mass-giving Higgs field mechanism.