A duo of theorists proposes a brand-new theory to describe both the surprisingly small mass of the Higgs boson and the confusing symmetry residential or commercial properties of the strong force.
The discovery of the Higgs boson was a landmark in the history of physics. It described something essential: how primary particles that have mass get their masses. It likewise marked something no less essential: the beginning of a period of measuring in information the particles properties and discovering out what they may reveal about the nature of the universe.
In a paper just published in Physical Review Letters, Raffaele Tito DAgnolo of the French Alternative Energies and Atomic Energy Commission (CEA) and Daniele Teresi of CERN propose a new theory to discuss both the lightness of the Higgs boson and another basic physics puzzle.
In its early moments, the universe is a collection of numerous universes each with a various worth of the Higgs mass, and in some of these universes the Higgs boson is light. In this multiverse design, universes with a heavy Higgs boson collapse in a big crunch in a very brief time, whereas universes with a light Higgs boson endure this collapse. Other recent theoretical propositions to explain the Higgs mass consist of the relaxion field design, a new phenomenon in quantum cosmology and the self-centered Higss model, to discuss a couple of.
One such home is the particles mass, which at 125 GeV is surprisingly small. Numerous theories have actually been put forward to discuss this small mass, but none has up until now been validated with information. In a paper simply published in Physical Review Letters, Raffaele Tito DAgnolo of the French Alternative Energies and Atomic Energy Commission (CEA) and Daniele Teresi of CERN propose a new theory to describe both the lightness of the Higgs boson and another essential physics puzzle.
In its early moments, the universe is a collection of many universes each with a different worth of the Higgs mass, and in some of these universes the Higgs boson is light. In this multiverse model, universes with a heavy Higgs boson collapse in a huge crunch in a very short time, whereas universes with a light Higgs boson endure this collapse.
Whats more, the model, which consists of 2 brand-new particles in addition to the known particles forecasted by the Standard Model, can likewise discuss the puzzling symmetry residential or commercial properties of the strong force, which binds quarks together into protons and neutrons, and protons and neutrons into atomic nuclei.
Although the theory of the strong force, referred to as quantum chromodynamics, anticipates a possible breakdown in strong interactions of a fundamental balance called CP symmetry, such a breakdown is not observed in experiments. One of the brand-new particles in DAgnolo and Teresis design can resolve this so-called strong CP issue, making strong interactions CP symmetric. The same new particle might likewise account for the dark matter that is thought to make up many of the matter in the universe.
The jury is naturally out on whether the brand-new design, or any of the many other models that have been proposed to explain the Higgs boson mass or the strong CP issue, will fly.
” Each design comes with advantages and limitations,” states Teresi. “Our design stands apart since it is simple, generic and it fixes these 2 apparently unrelated puzzles at as soon as. And it forecasts distinguishing characteristics in data from experiments that aim to search for dark matter or for an electric dipole minute in the neutron and other hadrons.”
Other recent theoretical proposals to discuss the Higgs mass include the relaxion field model, a brand-new phenomenon in quantum cosmology and the self-centered Higss design, to point out a few. Older, more standard theories are based on a Higgs boson that is a composite particle or on a brand-new kind of symmetry called supersymmetry. Just time and information will tell which– if any– of the designs will prevail.
Recommendation: “Sliding Naturalness: New Solution to the Strong-CP and Electroweak-Hierarchy Problems” by Raffaele Tito DAgnolo and Daniele Teresi, 12 January 2022, Physical Review Letters.DOI: 10.1103/ PhysRevLett.128.021803.