Definitions for top quark
top quark

Princeton's WordNetRate this definition:0.0 / 0 votes

1. top quark, truth quarknoun

   a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron

WiktionaryRate this definition:0.0 / 0 votes

1. top quarknoun

   A quark having a fractional electric charge of +2/3 and a mass about 178,000 MeV. Symbol: t

WikipediaRate this definition:0.0 / 0 votes

1. Top quark

   The top quark, sometimes also referred to as the truth quark, (symbol: t) is the most massive of all observed elementary particles. It derives its mass from its coupling to the Higgs Boson. This coupling y t {\displaystyle y_{t}} is very close to unity; in the Standard Model of particle physics, it is the largest (strongest) coupling at the scale of the weak interactions and above. The top quark was discovered in 1995 by the CDF and DØ experiments at Fermilab. Like all other quarks, the top quark is a fermion with spin 1/2 and participates in all four fundamental interactions: gravitation, electromagnetism, weak interactions, and strong interactions. It has an electric charge of +2/3 e. It has a mass of 172.76±0.3 GeV/c2, which is close to the rhenium atom mass. The antiparticle of the top quark is the top antiquark (symbol: t, sometimes called antitop quark or simply antitop), which differs from it only in that some of its properties have equal magnitude but opposite sign. The top quark interacts with gluons of the strong interaction and is typically produced in hadron colliders via this interaction. However, once produced, the top (or antitop) can decay only through the weak force. It decays to a W boson and either a bottom quark (most frequently), a strange quark, or, on the rarest of occasions, a down quark. The Standard Model determines the top quark's mean lifetime to be roughly 5×10−25 s. This is about a twentieth of the timescale for strong interactions, and therefore it does not form hadrons, giving physicists a unique opportunity to study a "bare" quark (all other quarks hadronize, meaning that they combine with other quarks to form hadrons and can only be observed as such). Because the top quark is so massive, its properties allowed indirect determination of the mass of the Higgs boson (see § Mass and coupling to the Higgs boson below). As such, the top quark's properties are extensively studied as a means to discriminate between competing theories of new physics beyond the Standard Model. The top quark is the only quark that has been directly observed due to its decay time being shorter than the hadronization time.

ChatGPTRate this definition:0.0 / 0 votes

1. top quark

   A top quark is a type of elementary particle and a fundamental constituent of matter, belonging to the class of elementary particles called quarks, which are the building blocks of protons and neutrons. The top quark is the heaviest of all observed elementary particles. Since it can change into any other lighter quark by emitting a weak force-carrying particle, it is unstable and decays almost instantly upon creation. It was the last standard model quark to be discovered, at Fermilab in 1995.

WikidataRate this definition:0.0 / 0 votes

1. Top quark

   The top quark, also known as the t quark or truth quark, is an elementary particle and a fundamental constituent of matter. Like all quarks, the top quark is an elementary fermion with spin-¹⁄2, and experiences all four fundamental interactions: gravitation, electromagnetism, weak interactions, and strong interactions. It has an electric charge of +²⁄3 e, and is the most massive of all observed elementary particles. It has a mass of 172.9±1.5 GeV/c², which is about the same mass as an atom of tungsten. The antiparticle of the top quark is the top antiquark, which differs from it only in that some of its properties have equal magnitude but opposite sign. The top quark interacts primarily by the strong interaction but can only decay through the weak force. It decays almost exclusively to a W boson and a bottom quark, but it can decay also into a strange quark, and on the rarest of occasions, into a down quark. The Standard Model predicts its mean lifetime to be roughly 5×10^−25 s. This is about 20 times shorter than the timescale for strong interactions, and therefore it does not form hadrons, giving physicists a unique opportunity to study a "bare" quark. Because it is so massive, the properties of the top quark allow predictions to be made of the mass of the Higgs boson under certain extensions of the Standard Model. As such, it is extensively studied as a means to discriminate between competing theories.

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1. • Quark

How to pronounce top quark?

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How to say top quark in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of top quark in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of top quark in Pythagorean Numerology is: 2

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=top quark
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Top_Quark
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Top_Quark
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=top quark