down quark

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down quark

n. Abbr. d

A quark with a charge of - ¹/₃ , a mass about 20 times that of the electron, and a downward spin. It is a component of protons and neutrons. See Table at subatomic particle.

down quark (doun)

A quark with a charge of -1/3. Its mass is greater than that of the electron and the up quark, but smaller than that of all the other quarks. See Table at subatomic particle.

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Noun

down quark - a stable quark with an electric charge of -1/3 and a mass 607 times that of an electron

quark - (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3; "quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally"

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charm quark D elementary particle flavor neutron proton quark quark star strange quark W boson			The smallest of the elements and matter can be broken down quarks which are nothing but energy. Feng Shui Some Useful Points by Navjot Kaur / News, opinion and commentary community Three spinons, for example--two of one kind, one of another- could make particles with electric charge of +2/3, like the up quark, or -1/3, like the down quark. The status quark: Murray Gell-Mann reflects on matter's building ... by Siegfried, Tom / Science News The first matter in this regard straddles both spheres in that the predominant observed or theoretical decay products of a weak neutral boson are admixtures of bottom with strange and/or down quarks in heavy mesons, and practically is the only known particle that can directly decay to a strange Bs-meson. The Z-Boson Mass and Its Formula as Multiple Proofs in One Yummy Bowl ... by Sean Sheeter / Reference and Education community			dower dower house Dowered Dowerless Dowery dowitcher Dowl Dowland Dowlas Dowle dowly down down and dirty Down at the mouth Down draught Down East Down Easter down feather Down grade Down helm down in the mouth down lock Down on down pat down payment down quark Down syndrome Down the country down the hatch Down the sound down the stairs Down the wind down to the wire down town Down tree down under Down with the dust Down's syndrome down-and-dirty down-and-out down-at-heel down-bow down-home down-in-the-mouth down-market Down-share down-to-earth Down-wind Down’s syndrome Downbear downbeat			down on (one's) luck down on (one's) luck down on (one's) luck down on (one's) luck down on (one's) luck down on luck down on luck down on luck down on luck down on luck down on luck Down on the Corner Down on the Farm Down on the Upside down one for the road down pat down payment down payment down payment down payment Down Payment and Closing Cost Down Payment and Closing Cost Assistance Down Payment Assistance Down Payment Assistance Program Down Payment Assitance Loan down payments down payments down payments down payments Down Pipe down quark Down Range Support Ship Down Region Aspartic Protease Down Regulated in Metastasis down regulation Down Right No Good Down round Down Rounds Down Shop Lead Down Since Day One Down South Down South Florida Boy Down South Georgia Boys Down South Georgia Girl Down Stage Down Stage Center Down Stage Left Down Stage Right down staging Down Stream Down Stroke Per Minute Down syndrome Down syndrome Down syndrome Down syndrome Down Syndrome Association Down Syndrome Association for Families Down Syndrome Association of Central Florida

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