Introduction to Nuclear and Particle Physics
... The Fate of the Universe If ρ0, the density of matter and energy in the Universe, is greater than some critical density, ρc, the expansion of the Universe will eventually cease and reverse, so that it ultimately contracts (THE BIG CRUNCH) If ρ0, the density of matter and energy in the Universe, is ...
... The Fate of the Universe If ρ0, the density of matter and energy in the Universe, is greater than some critical density, ρc, the expansion of the Universe will eventually cease and reverse, so that it ultimately contracts (THE BIG CRUNCH) If ρ0, the density of matter and energy in the Universe, is ...
what`s ahead in particle physics - CMS DocDB Server
... If electromagnetism and the weak interactions are fundamentally the same, whey do they look so different? Our best understanding is that a process of “spontaneous symmetry breaking” that occurred in the very early Universe is responsible for the difference. ...
... If electromagnetism and the weak interactions are fundamentally the same, whey do they look so different? Our best understanding is that a process of “spontaneous symmetry breaking” that occurred in the very early Universe is responsible for the difference. ...
The Family Problem: Extension of Standard Model with a Loosely
... In this talk, I propose that we may add an SU(3) family gauge theory - the SU_c(3) × SU(2) × U(1) × SU_f(3) standard model. In addition to QCD and electroweak (EW) phase transitions there is other SU_f(3) family phase transition occurring near the familon masses, maybe above the EW scale (that is, a ...
... In this talk, I propose that we may add an SU(3) family gauge theory - the SU_c(3) × SU(2) × U(1) × SU_f(3) standard model. In addition to QCD and electroweak (EW) phase transitions there is other SU_f(3) family phase transition occurring near the familon masses, maybe above the EW scale (that is, a ...
Particle accelerator goes boldly where none have gone before
... But it would be boring if only the Higgs is found. This would mean that, at least within the LHC's large range of energies, there's nothing new in the universe beyond the predictions of the standard model. There are several tantalizing hints that this won't happen. First, astronomers have discovered ...
... But it would be boring if only the Higgs is found. This would mean that, at least within the LHC's large range of energies, there's nothing new in the universe beyond the predictions of the standard model. There are several tantalizing hints that this won't happen. First, astronomers have discovered ...
Slide 1
... THEN CAN DERIVE MUCH: o 1982 Explain Higgs mechanism o 1983 Explain why the forces look different to us in strength and properties, but become the same at high energies o 1983 Provide a dark matter candidate (the lightest superpartner) o 1991 Allow an explanation of the matter asymmetry of the univ ...
... THEN CAN DERIVE MUCH: o 1982 Explain Higgs mechanism o 1983 Explain why the forces look different to us in strength and properties, but become the same at high energies o 1983 Provide a dark matter candidate (the lightest superpartner) o 1991 Allow an explanation of the matter asymmetry of the univ ...
ppt - High Energy Physics
... • Have found the same thing for leptons. • But maybe there should be a lepto-quark field? – Quarks could turn into leptons, leptons into quarks – All matter particles would be different ‘orientations’ of the same fundamental object. ...
... • Have found the same thing for leptons. • But maybe there should be a lepto-quark field? – Quarks could turn into leptons, leptons into quarks – All matter particles would be different ‘orientations’ of the same fundamental object. ...
Operator Analysis for the Higgs Potential and Cosmological Bound
... new physics beyond the standard model since CP violation in the standard model is too small to yield anything like the observed asymmetry. Furthermore, in the standard model the upper limit of the Higgs mass obtained by avoiding washout of the asymmetry produced during phase transition lies below th ...
... new physics beyond the standard model since CP violation in the standard model is too small to yield anything like the observed asymmetry. Furthermore, in the standard model the upper limit of the Higgs mass obtained by avoiding washout of the asymmetry produced during phase transition lies below th ...
The beginning of physics
... created in the lab. A complicated picture but we can discern patterns. Must be due to an underlying theory that combines a smaller number of more fundamental particles using a set of rules. The fundamental particles All ordinary matter made of up quark, down quark, electrons and electron neu ...
... created in the lab. A complicated picture but we can discern patterns. Must be due to an underlying theory that combines a smaller number of more fundamental particles using a set of rules. The fundamental particles All ordinary matter made of up quark, down quark, electrons and electron neu ...
