hyperonn.

Brit.

/ˈhʌɪpərɒn/, U.S.

/ˈhaɪpəˌrɑn/

Origin: Formed within English, by derivation. Etymons: hyper- prefix, -on suffix¹.

Etymology: < hyper- prefix + -on suffix¹.

Particle Physics.

Originally: any of a group of unstable subatomic particles that includes all the baryons with a mass greater than that of a neutron. In later use: (more narrowly) a baryon that includes at least one strange quark but no charm or bottom quarks.Cf. lambda n. 3, omega n. 4a, sigma n. 3b, xi n. 3.

ΘΚΠ

the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > baryon > [noun] > hyperon

V1950

hyperon1953

omega1953

1953 Compt. Rend. du 3me Congrès Internat. sur le Rayonnement Cosmique 269 Nomenclature more frequently used during the conference... Groups of particles... H-particles (hyperons): symbol H: particles with mass intermediate between those of the neutron and the deuteron (this definition to be revised if ‘fundamental’ particles heavier than the deuteron are found).

1965 New Scientist 18 Mar. 738/3 The SU(3) symmetry relates not just the proton and the neutron one to another, but includes also in one multiplet the six particles known as hyperons.

1975 Proc. National Acad. Sci. U.S.A. 72 4685/2 In the core of a neutron star..the character of the material is uncertain, because normally unstable hyperons may become quite stable under these conditions.

1983 AIP Conf. Proc. 95 95 Charged hyperon and anti-hyperon production by 400 GeV/c protons on a Cu target.

2004 Science 23 Apr. 538/3 Exotic particles such as strangeness-bearing hyperons and/or Bose condensates..may become abundant.

This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022).

单词	hyperon
释义	hyperonn. Brit. /ˈhʌɪpərɒn/, U.S. /ˈhaɪpəˌrɑn/ Origin: Formed within English, by derivation. Etymons: hyper- prefix, -on suffix¹. Etymology: < hyper- prefix + -on suffix¹. Particle Physics. Originally: any of a group of unstable subatomic particles that includes all the baryons with a mass greater than that of a neutron. In later use: (more narrowly) a baryon that includes at least one strange quark but no charm or bottom quarks.Cf. lambda n. 3, omega n. 4a, sigma n. 3b, xi n. 3. ΘΚΠ the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > baryon > [noun] > hyperon V1950 hyperon1953 omega1953 1953 Compt. Rend. du 3me Congrès Internat. sur le Rayonnement Cosmique 269 Nomenclature more frequently used during the conference... Groups of particles... H-particles (hyperons): symbol H: particles with mass intermediate between those of the neutron and the deuteron (this definition to be revised if ‘fundamental’ particles heavier than the deuteron are found). 1965 New Scientist 18 Mar. 738/3 The SU(3) symmetry relates not just the proton and the neutron one to another, but includes also in one multiplet the six particles known as hyperons. 1975 Proc. National Acad. Sci. U.S.A. 72 4685/2 In the core of a neutron star..the character of the material is uncertain, because normally unstable hyperons may become quite stable under these conditions. 1983 AIP Conf. Proc. 95 95 Charged hyperon and anti-hyperon production by 400 GeV/c protons on a Cu target. 2004 Science 23 Apr. 538/3 Exotic particles such as strangeness-bearing hyperons and/or Bose condensates..may become abundant. This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022). < n.1953
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