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Physics Beyond the Standard Model
... Physics Beyond the Standard Model Summary by Dennis Silverman Physics and Astronomy UC Irvine ...
... Physics Beyond the Standard Model Summary by Dennis Silverman Physics and Astronomy UC Irvine ...
Classes of Particles - Liberty Union
... line "Three quarks for Muster Mark" in Finnegans Wake that appealed to Murray GellMann. The study of quarks (and the strong nuclear force) is quantum chromodynamics. 3. Baryons are composite (i.e., non-fundamental) particles made from three quarks. The most common examples are the proton (two up qua ...
... line "Three quarks for Muster Mark" in Finnegans Wake that appealed to Murray GellMann. The study of quarks (and the strong nuclear force) is quantum chromodynamics. 3. Baryons are composite (i.e., non-fundamental) particles made from three quarks. The most common examples are the proton (two up qua ...
Muon Lifetime
... sits in the bottom of the asymmetric well with non-zero value • universe F of the field (called the vacuum expectation value of the Higgs) - asymmetric ground state doesn’t respect symmetry of theory (SSB) states corresponding to motion in the bottom of the well become the • 3longitudinal polarizati ...
... sits in the bottom of the asymmetric well with non-zero value • universe F of the field (called the vacuum expectation value of the Higgs) - asymmetric ground state doesn’t respect symmetry of theory (SSB) states corresponding to motion in the bottom of the well become the • 3longitudinal polarizati ...
ppt - Experimental Subatomic Physics
... with parity-violating asymmetry. Parity violation: when an interaction between particles does not have the same strength as its mirror-image interaction. For example: electrons that are mirror-images of each other (below) do not interact with protons in exactly the same way, due to the weak force. ...
... with parity-violating asymmetry. Parity violation: when an interaction between particles does not have the same strength as its mirror-image interaction. For example: electrons that are mirror-images of each other (below) do not interact with protons in exactly the same way, due to the weak force. ...
Rehearsal questions
... 1. What type of particles are described by the Klein-Gordon equation? Is there any such particle in the SM? 2. What type of particles are described by the Dirac equation? 3. How many Dirac matrices are there? 4. There are four solutions to the Dirac equations. What do they represent? 5. How many ind ...
... 1. What type of particles are described by the Klein-Gordon equation? Is there any such particle in the SM? 2. What type of particles are described by the Dirac equation? 3. How many Dirac matrices are there? 4. There are four solutions to the Dirac equations. What do they represent? 5. How many ind ...
The Standard Model or Particle Physics 101
... • Strong force mediated by gluons which couple to quarks thru color charge. • Electrons have zero color charge. • Quantum Chromodynamics = QCD = strong force ...
... • Strong force mediated by gluons which couple to quarks thru color charge. • Electrons have zero color charge. • Quantum Chromodynamics = QCD = strong force ...
People`s Physics Book 3e Ch 22-1 The Big Idea All matter is
... Electron lepton number is conserved. This means that the total number of electrons plus electron neutrinos must be the same before and after an interaction. Similarly, muon lepton number and tau lepton number are also (separately) conserved. Total quark number is conserved. Unlike leptons, however, ...
... Electron lepton number is conserved. This means that the total number of electrons plus electron neutrinos must be the same before and after an interaction. Similarly, muon lepton number and tau lepton number are also (separately) conserved. Total quark number is conserved. Unlike leptons, however, ...
Dark Matter and Dark Energy - Hitoshi Murayama Home Page
... Quantum Numbers in the Standard Model • To treat them on equal footing, make all particles left-handed using CP u ...
... Quantum Numbers in the Standard Model • To treat them on equal footing, make all particles left-handed using CP u ...
some aspects of strange matter : stars and strangelets
... ….The W and Z bosons are massive !! Vector boson mass ensures the short range of weak interaction but is detrimental to gauge invariance The day was saved by Glashow, Weinberg and Salam (~1970) They introduced Higg’s mechanism of spontaneous symmetry breaking (~1964) and the proof of renormalizabili ...
... ….The W and Z bosons are massive !! Vector boson mass ensures the short range of weak interaction but is detrimental to gauge invariance The day was saved by Glashow, Weinberg and Salam (~1970) They introduced Higg’s mechanism of spontaneous symmetry breaking (~1964) and the proof of renormalizabili ...
Higgs - Transcript - the Cassiopeia Project
... The electron is 300,000 times less-massive than the top quark and so its Higgs interaction is much smaller. And the almost-massless neutrino has only a tinytiny interaction. ...
... The electron is 300,000 times less-massive than the top quark and so its Higgs interaction is much smaller. And the almost-massless neutrino has only a tinytiny interaction. ...
Quarks, Leptons, Bosons the LHC and All That
... Some HE Physicist Principles • We are reductionists (and proud of it!) – Our worldview is that there are a small number of fundamental constituents, interacting via a small number of forces, that make up the Universe as we know it. – This picture has worked extremely well for about 2000 years. – Th ...
... Some HE Physicist Principles • We are reductionists (and proud of it!) – Our worldview is that there are a small number of fundamental constituents, interacting via a small number of forces, that make up the Universe as we know it. – This picture has worked extremely well for about 2000 years. – Th ...
presentation source
... have constituents? We’re doing the Rutherford experiment yet again, this time with quark-antiquark collisions! Do quarks have constituent parts? Maybe! ...
... have constituents? We’re doing the Rutherford experiment yet again, this time with quark-antiquark collisions! Do quarks have constituent parts? Maybe! ...
gg higgs - University of Southampton
... addressed using a mechanism named after the British physicist Peter Higgs. This predicts a spinless particle: Higgs boson According to Higgs, space is filled with a new type of field analagous to magnetic or electric fields… ...
... addressed using a mechanism named after the British physicist Peter Higgs. This predicts a spinless particle: Higgs boson According to Higgs, space is filled with a new type of field analagous to magnetic or electric fields… ...
Higgs_1 - StealthSkater
... One of the most important discoveries in particle physics of the last 25 years has possibly just been made by experimentalists at CERN, the giant laboratory just outside of Geneva on the border of Switzerland and France. Scientists there think that they have discovered the Higgs field -- also nickna ...
... One of the most important discoveries in particle physics of the last 25 years has possibly just been made by experimentalists at CERN, the giant laboratory just outside of Geneva on the border of Switzerland and France. Scientists there think that they have discovered the Higgs field -- also nickna ...
When Symmetry Breaks Down - School of Natural Sciences
... perfectly in parallel. For example, electromagnetism is described by Maxwell’s equations, and the weak interactions are described by a quite similar, albeit nonlinear, set of equations (called the Yang–Mills equations). To give another example, an elementary particle called the photon is the basic q ...
... perfectly in parallel. For example, electromagnetism is described by Maxwell’s equations, and the weak interactions are described by a quite similar, albeit nonlinear, set of equations (called the Yang–Mills equations). To give another example, an elementary particle called the photon is the basic q ...
Standard Model
The Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, as well as classifying all the subatomic particles known. It was developed throughout the latter half of the 20th century, as a collaborative effort of scientists around the world. The current formulation was finalized in the mid-1970s upon experimental confirmation of the existence of quarks. Since then, discoveries of the top quark (1995), the tau neutrino (2000), and more recently the Higgs boson (2013), have given further credence to the Standard Model. Because of its success in explaining a wide variety of experimental results, the Standard Model is sometimes regarded as a ""theory of almost everything"".Although the Standard Model is believed to be theoretically self-consistent and has demonstrated huge and continued successes in providing experimental predictions, it does leave some phenomena unexplained and it falls short of being a complete theory of fundamental interactions. It does not incorporate the full theory of gravitation as described by general relativity, or account for the accelerating expansion of the universe (as possibly described by dark energy). The model does not contain any viable dark matter particle that possesses all of the required properties deduced from observational cosmology. It also does not incorporate neutrino oscillations (and their non-zero masses).The development of the Standard Model was driven by theoretical and experimental particle physicists alike. For theorists, the Standard Model is a paradigm of a quantum field theory, which exhibits a wide range of physics including spontaneous symmetry breaking, anomalies, non-perturbative behavior, etc. It is used as a basis for building more exotic models that incorporate hypothetical particles, extra dimensions, and elaborate symmetries (such as supersymmetry) in an attempt to explain experimental results at variance with the Standard Model, such as the existence of dark matter and neutrino oscillations.