baryogenesis - Article Index

Encyclopedia - Big Bang Nucleosynthesis: Encyclopedia - Big Bang Nucleosynthesis
edit In cosmology, Big Bang nucleosynthesis (or primordial nucleosynthesis) refers to the production of nuclei other than H-1, the normal...   » Read the article

Encyclopedia - Big Bang: Encyclopedia - Big Bang
In physical cosmology, the Big Bang is the scientific theory that the Universe emerged from an enormously dense and hot state about 13.7 ...   » Read the article

Encyclopedia - Cp-violation: Encyclopedia - Cp-violation
In physics, and specifically particle physics, CP violation is a violation of the postulated CP symmetry of the laws of physics. It plays...   » Read the article

Encyclopedia - Chiral Anomaly: Encyclopedia - Chiral Anomaly
A chiral anomaly is the anomalous nonconservation of a chiral current. In some theories of fermions with a chiral symmetry the quantizati...   » Read the article

Encyclopedia - Baryon Asymmetry: Encyclopedia - Baryon Asymmetry
The baryon asymmetry problem in astrophysics refers to the apparent fact that the baryons in the universe which have been observed are ov...   » Read the article

Encyclopedia - Antimatter: Encyclopedia - Antimatter
Particle accelerator Penning trap positron antiproton antineutron Antimuon Antitauon Electron antineutrino Muon antineutrino Tau anti...   » Read the article

Encyclopedia - Baryon: Encyclopedia - Baryon
In particle physics, the baryons are a family of subatomic particles including the proton and the neutron (collectively called nucleons),...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Features Issues And Problems
A number of problems have arisen within the Big Bang theory throughout its history. Some of them are mainly of historical interest today,...   » Read the article

Encyclopedia - Chiral Anomaly: Encyclopedia Ii - Chiral Anomaly - An Example: Baryonic Charge Non-conservation
The Standard Model of electroweak interactions has all the necessary ingredients for successful baryogenesis. Beyond the violation of cha...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Planck Epoch
The Planck Epoch covers the time from 10-43 to 10-35 seconds after the Big Bang. The temperature during this epoch is estimated to decrea...   » Read the article

Encyclopedia - Leonard Susskind: Encyclopedia Ii - Leonard Susskind - Background
Susskind was born in New York City, NY and now resides in Palo Alto, CA. He is married to Anne Warren and has four children. He graduated...   » Read the article

Encyclopedia - Proton Decay: Encyclopedia Ii - Proton Decay - Theoretical Motivation
Despite the lack of observational evidence for proton decay, some grand unification theories require it. According to some such theories,...   » Read the article

Encyclopedia - Physical Cosmology: Encyclopedia Ii - Physical Cosmology - Areas Of Study
Below, some of the most active areas of inquiry in cosmology are described, in roughly chronological order. This does not include all of ...   » Read the article

Encyclopedia - Cp-violation: Encyclopedia Ii - Cp-violation - What Is Cp?
CP is the product of two symmetries: C for charge conjugation, which transforms a particle into its antiparticle, and P for parity, which...   » Read the article

Encyclopedia - Big Bang Nucleosynthesis: Encyclopedia Ii - Big Bang Nucleosynthesis - Sequence Of Bbn
Big Bang nucleosynthesis begins about one minute after the Big Bang, when the universe has cooled enough to form stable protons and neutr...   » Read the article

Encyclopedia - Baryon: Encyclopedia Ii - Baryon - Baryonic Matter
Baryonic matter is matter composed mostly of baryons (by mass), which includes atoms of any sort (and thus includes nearly all matter tha...   » Read the article

Encyclopedia - Plasma Cosmology: Encyclopedia Ii - Plasma Cosmology - Alfvén's Model
Alfvén's model of plasma cosmology can be divided into three distinct areas. The cosmic plasma, an empirical description of the Univers...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - Antimatter As Fuel
In antimatter-matter collisions, the entire rest mass of the particles is converted to energy. The energy per unit mass is about 10 order...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Features, Issues And Problems
A number of problems have arisen within the Big Bang theory throughout its history. Some of them are mainly of historical interest today,...   » Read the article

Encyclopedia - Leonard Susskind: Encyclopedia Ii - Leonard Susskind - Career
He has been a Professor of Physics at Stanford University since 1979. Susskind is the author of a recent book "The Cosmic Landscape: Stri...   » Read the article

Encyclopedia - Plasma Cosmology: Encyclopedia Ii - Plasma Cosmology - Overview
The basic assumptions of plasma cosmology are, since the universe is nearly all plasma, electromagnetic forces are equal in importance w...   » Read the article

Encyclopedia - Plasma Cosmology: Encyclopedia Ii - Plasma Cosmology - Features And Problems
In the past twenty-five years, plasma cosmology has expanded to develop models of the formation of large scale structure, quasars, the or...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Overview
According to the Big Bang theory, a sequence of events described below is believed to have taken place starting (13.7 ± 0.2) x 109 years...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Long-term Future For A Long-lived Universe
Timeline of the Big Bang - The Degenerate Age - from 1014 to 1040 years. Stellar formation stops, leaving matter to decay over a very ...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - Antimatter Production
Scientists in 1995 succeeded in producing antiatoms of hydrogen, and also antideuterium nuclei, made out of an antiproton and an antineut...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Near-term Future Of The Universe - Three Different Scenarios
Timeline of the Big Bang - Scenario A: The Big Rip. This scenario is possible only if dark energy increases over time as the Universe e...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Galaxy And Star Formation
Timeline of the Big Bang - The Stelliferous Age - from 106 to 1014 years. Hydrogen nuclei (protons) capture electrons, forming the fir...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Ultimate Fate For A Long-lived Universe
Timeline of the Big Bang - The Dark Age - from 10100 years until 10150 years. The remaining black holes evaporate: first the small one...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - The Big Bang And Matter Formation
Timeline of the Big Bang - The Primordial Age - from 0 years to 379000 years. The Universe, which includes time, space, and everything...   » Read the article

Encyclopedia - Timeline Of The Big Bang: Encyclopedia Ii - Timeline Of The Big Bang - Introduction
Most of the Big Bang theory's events are inferred from telescopic observations, particle accelerator experiments, and mathematical algori...   » Read the article

Encyclopedia - Big Bang Nucleosynthesis: Encyclopedia Ii - Big Bang Nucleosynthesis - Non-standard Bbn
In addition to the standard BBN scenario there are numerous non-standard BBN scenarios. These should not be confused with non-standard co...   » Read the article

Encyclopedia - Cp-violation: Encyclopedia Ii - Cp-violation - Cp Violation
In 1964, James Cronin and Val Fitch provided clear evidence that CP symmetry could be broken, too, winning them the 1980 Nobel Prize. The...   » Read the article

Encyclopedia - Big Bang Nucleosynthesis: Encyclopedia Ii - Big Bang Nucleosynthesis - Status And Implications Of Bbn
The theory of BBN gives a detailed mathematical description of the production of the light "elements" deuterium, helium-3, helium-4, and ...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - The Antiuniverse
Dirac himself was the first to consider the existence of antimatter in an astronomical scale. But it was only after the confirmation of h...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - History
In 1928 Paul Dirac developed a relativistic equation for the electron, now known as the Dirac equation. Curiously, the equation was found...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - Antimatter Production
Scientists in 1995 succeeded in producing antiatoms of hydrogen, and also antideuterium nuclei, made out of an antiproton and an antineut...   » Read the article

Encyclopedia - Antimatter: Encyclopedia Ii - Antimatter - Notation
Physicists need a notation to distinguish particles from antiparticles. One way is to denote an antiparticle by adding a bar (or macron) ...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Overview
Based on measurements of the expansion of the Universe using Type Ia supernovae, measurements of the lumpiness of the cosmic microwave ba...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Theoretical Underpinnings
As it stands today, the Big Bang is dependent on three assumptions: The universality of physical laws The cosmological principle The Cop...   » Read the article

Encyclopedia - Leonard Susskind: Encyclopedia Ii - Leonard Susskind - Career
He has been a Professor of Physics at Stanford University since 1979. Susskind is the author of the book "The Cosmic Landscape: String Th...   » Read the article

Encyclopedia - Physical Cosmology: Encyclopedia Ii - Physical Cosmology - History Of Physical Cosmology
Modern cosmology developed along tandem observational and theoretical tracks. In 1915, Albert Einstein developed his theory of general re...   » Read the article

Encyclopedia - Proton Decay: Encyclopedia Ii - Proton Decay - Dimension-6 Proton Decay Operators
They are , , and where Λ is the cutoff scale for the Standard Model. All of these operators violate both baryon number and lepton numb...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Observational Evidence
It is generally stated that there are three observational pillars that support the Big Bang theory of cosmology. These are the Hubble-typ...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - History
The Big Bang theory developed from observations and theoretical considerations. Observationally, it was determined that most spiral nebul...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - The Future According To The Big Bang Theory
Before observations of dark energy, cosmologists considered two scenarios for the future of the Universe. If the mass density of the univ...   » Read the article

Encyclopedia - Big Bang: Encyclopedia Ii - Big Bang - Speculative Physics Beyond The Big Bang
While the Big Bang model is well established in cosmology, it is likely to be refined in the future. Little is known about the earliest U...   » Read the article

Encyclopedia - Proton Decay: Encyclopedia Ii - Proton Decay - Dimension-4 Proton Decay Operators
In the absence of matter parity, supersymmetric extensions of the Standard Model can give rise to the last operator suppressed by the inv...   » Read the article