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Fundamentals Of Physics
Found in: Page 1363

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Short Answer

Which conservation law is violated in each of these proposed decays? Assume that the initial particle is stationary and the decay products have zero orbital angular momentum.

(a) μ-e-+νμ ; (b) μ-e++νe+v-μ ;(c) μ+π++νμ+

(a) decay does not occur.

(b) decay does not occur.

(c) poin energy does not conserve.

See the step by step solution

Step by Step Solution

Step 1: Conservation law

A principle that states that a certain physical property does not charge in the course of time within an isolated physical system. or

The law states that the total energy of an isolated system does not change.

SymmetriesConservation laws.

Rotation Angular momentum.

Spin translation momentum.

Time translation Energy.

Step 2: (a) Solve μ-→e-+νμ

μ-e-+νμSpin angular momentum π2 π2 π2 Electron lepton number 0 +1 0

Decay does not occur.

Step 3:(b) Solve μ-→e++ve+v-μ

μ-e++ve+v-μCharge -e e 0 0moun lepton number 1 -1 0 -1

Decay does not occur.

Step 4: (c) solve μ+→π++νμ+

μ+π++νμ+moun lepton number -1 0 +1

Mass of poin energy can not be conserved.

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