Editing 2326: Five Word Jargon
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====Anomalous electroweak sphaleron transition baryogenesis==== | ====Anomalous electroweak sphaleron transition baryogenesis==== | ||
: This is a term from {{w|Particle physics}}/{{w|cosmology}}. {{w|Baryon}}s are subatomic particles containing an odd number of quarks; protons and neutrons are the most familiar examples. {{w|Baryogenesis}} is the hypothetical physical process that took place during the early universe that produced more matter than antimatter in the observable universe (or it could be any process that produces baryons). {{w|Sphaleron}} is a static (time-independent) solution to the {{w|electroweak}} field equations of the Standard Model of particle physics, and is involved in certain hypothetical processes that change the number of baryons or {{w|leptons}} (e.g. forming baryons and removing leptons). It is believed that the electroweak interaction is responsible for baryogenesis, but that at the temperatures involved (~10<sup>15</sup> K), sphaleron interactions would wipe out any excess of baryons; therefore, for baryogenesis to "stick", it must have occurred at the ''transition'' out of the electroweak era...unless there were some kind of ''anomaly'' in the formation or interaction of sphalerons. Google reports no matches (other than this page) for the entire phrase in quotes, but shows about 70 results unquoted, indicating it finds only partial matches. | : This is a term from {{w|Particle physics}}/{{w|cosmology}}. {{w|Baryon}}s are subatomic particles containing an odd number of quarks; protons and neutrons are the most familiar examples. {{w|Baryogenesis}} is the hypothetical physical process that took place during the early universe that produced more matter than antimatter in the observable universe (or it could be any process that produces baryons). {{w|Sphaleron}} is a static (time-independent) solution to the {{w|electroweak}} field equations of the Standard Model of particle physics, and is involved in certain hypothetical processes that change the number of baryons or {{w|leptons}} (e.g. forming baryons and removing leptons). It is believed that the electroweak interaction is responsible for baryogenesis, but that at the temperatures involved (~10<sup>15</sup> K), sphaleron interactions would wipe out any excess of baryons; therefore, for baryogenesis to "stick", it must have occurred at the ''transition'' out of the electroweak era...unless there were some kind of ''anomaly'' in the formation or interaction of sphalerons. Google reports no matches (other than this page) for the entire phrase in quotes, but shows about 70 results unquoted, indicating it finds only partial matches. | ||
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==Transcript== | ==Transcript== |