bottom quark


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Related to bottom quark: charm quark, top quark, up quark, strange quark
  • noun

Synonyms for bottom quark

a quark with a charge of -1/3 and a mass about 10,000 times that of an electron

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References in periodicals archive ?
Physicists had expected to find the particle after a 1977 Fermilab experiment turned up evidence for the bottom quark, a particle that needed a partner.
Seven other baryons containing a single bottom quark have been confirmed so far, including a sibling of the new particle with a down quark instead of an up quark, found by Fermilab scientists in 2007.
Physicists had long conjectured that a down quark could combine with a strange and a bottom quark to form the three-generation cascade baryon.
Ordinary matter, such as protons and neutrons, contains only up quarks and down quarks, whereas the sigma-bs each contain a bottom quark and either a pair of up quarks or a pair of down quarks.
The fireball of electron-positron annihilation spat out a particle that promptly decayed into a bottom quark and its antimatter counterpart.
The newly discovered top quark is the long-sought partner of the bottom quark.
With the 1977 discovery at Fermilab of the bottom quark, the search was on for the top quark.
Discovered in 1977, B mesons consists of a bottom quark paired with an anti-up or an andi-down quark.
The theory requires that quarks come in pairs, and only the bottom quark has no partner so far.
Their result for the mass of the bottom quark is only a few percent away from the experimentally determined value.
Other answers may come from renewed efforts to understand the behavior of the bottom quark.
The researchers analyzed the data gathered at the LHC between 2011 and 2012, combining the Higgs decays into bottom quarks and tau leptons, both of which belong to the fermion particle group and the results revealed that an accumulation of these decays comes about at a Higgs particle mass near 125 gigaelectron volts (GeV) and with a significance of 3.