bottom quark

bottom quark
noun
a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
Syn: ↑beauty quark
Hypernyms: ↑quark

* * *

Physics.
the quark having electric charge -1/3 times the elementary charge and bottom quantum number -1. It is more massive than the up, down, strange, and charmed quarks. Also called beauty quark, b quark, b-quark.
[1975-80]

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bottom quark,
a quark having three times the mass of a charmed quark: »

The upsilon, formed of a bottom quark and a bottom antiquark, is 10 times more massive than the proton (Walter Sullivan).


Useful english dictionary. 2012.

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  • bottom quark — n. Particle Physics a type of quark with a mass of c. 4.7 to 5.3 GeV/c2, a negative charge that is 1/ 3 the charge of an electron, zero charm, and zero strangeness: see FLAVOR (sense 5) …   English World dictionary

  • Bottom-Quark — Ein Proton, bestehend aus zwei up Quarks und einem down Quark Quarks (kwɔrk, kwɑːk oder kwɑːrk) sind die elementaren Bestandteile (Elementarteilchen), aus denen man sich …   Deutsch Wikipedia

  • Bottom quark — Infobox Particle bgcolour = name = Bottom quark caption = num types = composition = Elementary particle family = Fermion group = Quark generation = Third interaction = particle = antiparticle = theorized = discovered = Leon M. Lederman et al.,… …   Wikipedia

  • Bottom-Quark — gelminis kvarkas statusas T sritis fizika atitikmenys: angl. beuty quark; bottom quark vok. Bottom Quark, n rus. донный кварк, m pranc. quark beauté, m; quark dessous, m …   Fizikos terminų žodynas

  • bottom quark — gelminis kvarkas statusas T sritis fizika atitikmenys: angl. beuty quark; bottom quark vok. Bottom Quark, n rus. донный кварк, m pranc. quark beauté, m; quark dessous, m …   Fizikos terminų žodynas

  • bottom quark — Physics. the quark having electric charge 1/3 times the elementary charge and bottom quantum number 1. It is more massive than the up, down, strange, and charmed quarks. Also called beauty quark, b quark, b quark. [1975 80] * * * …   Universalium

  • bottom quark — noun A quark having a fractional electric charge of 1/3 and a mass about 4,100 to 4,400 MeV. Symbol: b Syn: beauty quark, bottom …   Wiktionary

  • bottom quark — /ˈbɒtəm kwak/ (say botuhm kwahk) noun a quark with a charge of 2/3 e. Symbol: b Also, b quark, beauty quark …  

  • bottom quark — bot′tom quark n. phs the quark having electric charge −? times the electron s charge and greater mass than the up, down, charmed, and strange quarks • Etymology: 1975–80 …   From formal English to slang

  • Anti-Bottom-Quark — Ein Proton, bestehend aus zwei up Quarks und einem down Quark Quarks (kwɔrk, kwɑːk oder kwɑːrk) sind die elementaren Bestandteile (Elementarteilchen), aus denen man sich …   Deutsch Wikipedia

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