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The strange quark or s quark (from its symbol, s) is the third lightest of all quarks, a type of elementary particle. Strange quarks are found in subatomic particles called hadrons . Examples of hadrons containing strange quarks include kaons (
The symbols encountered in these lists are: I , J (total angular momentum), P , u , d , s (strange quark), c (charm quark), b (bottom quark), Q , B (baryon number), S (strangeness), C , B ′ , as well as a wide array of subatomic particles (hover for name).
The strange quark's existence was indirectly validated by SLAC's scattering ... placed after the symbol for flavor. For example, an up quark with a spin of + ...
represents the number of strange quarks (s) and n s represents the number of strange antiquarks (s). Evaluation of strangeness production has become an important tool in search, discovery, observation and interpretation of quark–gluon plasma (QGP). [3] Strangeness is an excited state of matter and its decay is governed by CKM mixing.
Neutrons, composed of two down and one up quark (ddu) Hyperons , such as the Λ, Σ, Ξ, and Ω particles, which contain one or more strange quarks , are short-lived and heavier than nucleons. Although not normally present in atomic nuclei, they can appear in short-lived hypernuclei .
Lambda baryons are usually represented by the symbols Λ 0, Λ + c, Λ 0 b, and Λ + t. In this notation, the superscript character indicates whether the particle is electrically neutral (0) or carries a positive charge (+). The subscript character, or its absence, indicates whether the third quark is a strange quark (Λ 0) (no subscript), a ...
The third quark can hence be either a strange (symbols Σ +, Σ 0, Σ −), a charm (symbols Σ ++ c, Σ + c, Σ 0 c), a bottom (symbols Σ + b, Σ 0 b, Σ − b) or a top (symbols Σ ++ t, Σ + t, Σ 0 t) quark. However, the top sigmas are expected to never be observed, since the Standard Model predicts the mean lifetime of top quarks to be ...
) are isosinglet mesons made of a mixture of up, down and strange quarks and their antiquarks. The charmed eta meson (η c) and bottom eta meson (η b) are similar forms of quarkonium; they have the same spin and parity as the (light) η defined, but are made of charm quarks and bottom quarks respectively.