   Chapter 33, Problem 17PE

Chapter
Section
Textbook Problem

The decay mode of the positive tau is (a) What energy is released?(b) Verify that charge and lepton family numbers are conserved.(c) The is the antiparticle of the Verify that all the decay products of the are the antiparticles of those in the decay of the given in the text.

To determine

(a)

The energy released in the decay of positive tau particle given by τ+μ++νμ+ν¯τ

Explanation

Given:

The decay mode of negative muon is given by, τ+μ++νμ+ν¯τ

Formula used:

Energy released = Rest energy of initial particle − sum of energies of decay products

Calculation:

In this problem the positive tau decays by τ+μ++νμ+ν¯τ

Rest energy of τ+ particle =1777 MeV

Rest energy of μ+ particle =105

To determine

(b)

The conservation of charge and lepton family numbers.

To determine

(c)

Whether all the decay products of τ+ particle are the antiparticles of those in the decay of

τ

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