Zweign.

/tsvʌɪɡ/

Etymology: < the name of George Zweig (b. 1937), Russian-born U.S. physicist.

Particle Physics.

Used attributively, in combinations, and in the possessive in or with reference to Zweig rule n. (also Zweig's rule) an empirical rule governing the possible outcomes of hadron decay in quantum chromodynamics.

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Zweig rule1973

1973 Physics Rep. 8 199 A four point function satisfying the quark model ansatz..splits naturally into two three point functions, each satisfying Zweig's rule.

1977 Proc. 17th Scottish Univ. Summer School Physics 192 With the Zweig rule, the ρπ decay mode for the physical ϕ meson is permitted only through its admixture of nonet ω state.

1977 Proc. 17th Scottish Univ. Summer School Physics 192 (caption) Examples of..Zweig-allowed and..Zweig-forbidden graphs for ϕ decay.

1978 Nature 9 Mar. 192/1 There is also a useful review by Lipkin of the empirical status of the so-called Zweig rule, which is supposed to inhibit the decay of the J/ψ to hadrons so strongly.

1989 F. Close in P. Davies New Physics xiv. 408/1 Any process where new quarks and antiquarks emerge in a way that can be cut, like figure 14.7(b), is suppressed relative to processes of the figure 14.7(a) topology. This observation has been elevated to an ad hoc rule, known as the Zweig rule or OZI rule.

This entry has not yet been fully updated (first published 1993; most recently modified version published online March 2019).

单词	zweig
释义	Zweign. /tsvʌɪɡ/ Etymology: < the name of George Zweig (b. 1937), Russian-born U.S. physicist. Particle Physics. Used attributively, in combinations, and in the possessive in or with reference to Zweig rule n. (also Zweig's rule) an empirical rule governing the possible outcomes of hadron decay in quantum chromodynamics. ΘΚΠ the world > matter > physics > atomic physics > particle physics > quark > [noun] > Zweig's rule Zweig rule1973 1973 Physics Rep. 8 199 A four point function satisfying the quark model ansatz..splits naturally into two three point functions, each satisfying Zweig's rule. 1977 Proc. 17th Scottish Univ. Summer School Physics 192 With the Zweig rule, the ρπ decay mode for the physical ϕ meson is permitted only through its admixture of nonet ω state. 1977 Proc. 17th Scottish Univ. Summer School Physics 192 (caption) Examples of..Zweig-allowed and..Zweig-forbidden graphs for ϕ decay. 1978 Nature 9 Mar. 192/1 There is also a useful review by Lipkin of the empirical status of the so-called Zweig rule, which is supposed to inhibit the decay of the J/ψ to hadrons so strongly. 1989 F. Close in P. Davies New Physics xiv. 408/1 Any process where new quarks and antiquarks emerge in a way that can be cut, like figure 14.7(b), is suppressed relative to processes of the figure 14.7(a) topology. This observation has been elevated to an ad hoc rule, known as the Zweig rule or OZI rule. This entry has not yet been fully updated (first published 1993; most recently modified version published online March 2019). < n.1973
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