baryon

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bar·y·on

(băr′ē-ŏn′)

Any of a class of subatomic particles that are both hadrons and fermions, are composed of three quarks, participate in strong interactions, and are generally more massive than mesons and leptons. The class of baryons is divided into the nucleons and hyperons.

[Greek barus, heavy; see g^werə- in Indo-European roots + -on.]

bar′y·on′ic adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

baryon

(ˈbærɪˌɒn)

(Atomic Physics) any of a class of elementary particles that have a mass greater than or equal to that of the proton, participate in strong interactions, and have a spin of . Baryons are either nucleons or hyperons. The baryon number is the number of baryons in a system minus the number of antibaryons

[C20: bary-, from Greek barus heavy + -on]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

bar•y•on

(ˈbær iˌɒn)

n.

any strongly interacting fermion, as a proton or neutron, that decays into a set of particles that includes a proton.

[1950–55; < Greek barý(s) heavy + (fermi) on]

bar`y•on′ic, adj.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun

baryon - any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1

heavy particle

fermion - any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle

hadron - any elementary particle that interacts strongly with other particles

hyperon - any baryon that is not a nucleon; unstable particle with mass greater than a neutron

nucleon - a constituent (proton or neutron) of an atomic nucleus

Translations

Baryon

barione

References in periodicals archive ?

However, says Martin White, a member of Berkeley Lab, a professor of physics and astronomy at the University of California at Berkeley, and chair of the BOSS science survey team, "We've done the analysis now because we have 90 percent of BOSS's final data and we're tremendously excited by the results." Baryon acoustic oscillations (BAO) are the regular clustering of galaxies, whose scale provides a "standard ruler" to measure the evolution of the universe's structure.

Universe Measured to One-Percent Accuracy

Over the past three years, as part of SDSS-III's Baryon Oscillation Spectroscopic Survey (BOSS), the survey has been specifically seeking out repeated spectra of BAL quasars through a program proposed by Brandt and colleagues.

'Missing' quasar gas clouds blown away by strong winds

have calculated the photon energy spectrum and photon polarization in a heavy baryon chiral perturbation theory (HB[chi]PT) including explicit [DELTA] degrees of freedom [3].

Detecting the radiative decay mode of the neutron

Such an approach has been applied to light quark systems with a surprising success [4-6], leading to that model so-called Constituent Quark Model (CQM), which, based on the Gell Mann-Zweig idea, explains meson and baryon bound systems.

Mass Spectra and Decay Constants of Heavy-Light Mesons: A Case Study of QCD Sum Rules and Quark Model

This time, the largest particle accelerator in the world - a 17-mile tunnel under the French-Swiss border - has found a new type of baryon that contains two heavy quarks of the charm variety, the first ever detection of a baryon which has more than one heavy quark.

New Type Of Heavy Particle Found At CERN?

Over the past three years, as part of SDSS-III's Baryon Oscillation Spectroscopic Survey (BOSS), the researchers specifically have been seeking out repeated spectra of BAL quasars through a program proposed by Brandt and his colleagues.

Case of Missing Quasar Gas Clouds Solved

The proton is stable, because it's the lightest baryon and the baryon number is conserved.

Emergence of particle masses in fractal scaling models of matter

A new detailed map of cosmic structure created from the Baryon Oscillation Spectroscopic Survey (BOSS) is helping astronomers home in on the nature of dark energy with high precision.

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It is relevant to mention in this connection that [[delta].sub.KM] is not sufficient to generate the baryon asymmetry of the universe.

The T-odd R and D correlations in beta decay

On the other hand, the first-order electroweak phase transitions may solve some cosmological problems, like the generation of the baryon asymmetry of the universe (see recent reviews [6,7]).