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  1. Question: By examining strangeness, determine which of the following decays or reactions proceed via the strong interaction: (a) K0→π++Ï€- (b) Âì0+p→Σ++n(c) Âì0→p+Ï€-(d)K-+p→Âì0+Ï€0.

Short Answer

Expert verified
  1. Strangeness is not conversed.
  2. Strangeness is not conversed.
  3. Strangeness is not conversed.
  4. Strangeness is conversed.

Step by step solution

01

(a) Strangeness of K0→π++π-.

The strangeness of K0is +1and the strangeness ofπ+is 0 and strangeness of π-is0.

Thus, strangeness is not conversed.

Hence, it does not proceed via strong interaction.

02

(b) Strangeness of Λ0+p→∑++n.

The strangeness ofÂì0 is-1 andp is 0and the strangeness ∑+of is 1 and strangeness ofnis 0.

Thus, strangeness is not conversed.

Hence, it does not proceed via strong interaction.

03

(c) Strangeness of Λ0→p+π- .

The strangeness ofÂì0 is -1and the strangeness of pis 0andÏ€- is 0.

Thus, strangeness is not conversed.

Hence, it does not proceed via strong interaction.

04

(d) Strangeness of K-+p→Λ0+π0 ..

The strangeness ofK- is-1 andp is0 and the strangeness ofÂì0 is-1 andÏ€0 is0 .

Thus, strangeness is conversed.

Hence, it proceed via strong interaction.

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