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the quality or condition of being strange.
Physics. a quantum number assigned the value −1 for one kind of quark, +1 for its antiquark, and 0 for all other quarks; the strangeness of a hadron is the sum of the values for the strangeness of its constituent quarks and antiquarks. Symbol: S.
the state or quality of being strange
(physics) a property of certain elementary particles, characterized by a quantum number (strangeness number) conserved in strong and electromagnetic but not in weak interactions. It is associated with the presence of strange quarks
The property of containing a strange quark or antiquark. Strangeness is expressed in terms of an integer quantum number, -1 for each strange quark and +1 for each strange antiquark. Hadrons that possess strangeness are called strange. The total strangeness of a quantum system is unchanged by decay processes involving the strong or electromagnetic forces; however, decay through the weak force can change the total strangeness of the system. See also baryon number, isospin.


Read Also:

  • Strange-particle

    noun, Physics. 1. any elementary particle with a strangeness quantum number other than zero. strange particle Any of various unstable elementary particles, having a short half-life and a nonzero strangeness quantum number. Sigma and xi baryons, for example, are strange particles.

  • Strange-quark

    noun, Physics. 1. a quark having electric charge −1/3 times the elementary charge and strangeness −1; it is more massive than the up and down quarks. strange quark A quark with an electric charge of -1/3 and a mass of 391 electron masses, greater than that of the up quark and down quark, but smaller […]

  • Stranger

    noun 1. a person with whom one has had no personal acquaintance: He is a perfect stranger to me. 2. a newcomer in a place or locality: a stranger in town. 3. an outsider: They want no strangers in on the club meetings. 4. a person who is unacquainted with or unaccustomed to something (usually […]

  • Stranger-rape

    noun 1. sexual assault by an assailant upon a person he or she does not know.

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