antineutron


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Related to antineutron: antiproton, antiquark

antineutron

[′an·tē¦nü‚trän]
(particle physics)
The antiparticle to the neutron; a strongly interacting baryon which has no charge, mass of 939.6 MeV, spin ½, and mean life of about 103 seconds.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
A neutron is made up of quarks, while an antineutron is made up of antiquarks.
A neutron (see [9]) has one Up quark (with the charge of + 2/3 x 1.606 x [10.sup.19] C) and two Down quarks (each with the charge of -1/3 x 1.606 x [10.sup.19] C), while an antineutron has one anti Up quark (with the charge of -2/3 x 1.606 x [10.sup.19] C) and two anti Down quarks (each with the charge of + 1/3 x 1.606 x x [10.sup.19] C).
An antineutron has also a neutral charge, through it is opposite to a neutron, and they annihilate each other when meeting.
Both, the neutron and the antineutron, are neither attracted to nor repelling from charges particles.
An atom of unmatter is formed either by (1): electrons, protons, and antineutrons, or by (2): antielectrons, antiprotons, and neutrons.
Oppositely, the antimatter is made out of antielectrons, antiprotons, and antineutrons.
The first type is derived from matter; and a such unmatter atom is formed by electrons, protons, and antineutrons;
The unmatter nucleus, called unnucleus, is formed either by protons and antineutrons in the first type, or by antiprotons and neutrons in the second type.
Therefore, similarly the un-isotopes of type 1 of X will be formed by electrons, protons, and antineutrons, while the un-isotopes of type 2 of X will be formed by antielectrons, antiprotons, and neutrons.
Similarly to isotopes, the un-ion of type 1 (also called un-anion 1 or un-cation 1 if resulted from a negatively or respectively positive charge ion) of X will be formed by electrons, protons, and antineutrons, while the un-ion of type 2 of X (also called un-anion 2 or un-cation 2 if resulted from a negatively or respectively positive charge ion) will be formed by antielectrons, antiprotons, and neutrons.