College Physics
1st Edition
ISBN: 9781938168048
Author: Paul Peter Urone, OpenStax, Roger Hinrichs
Publisher: OpenStax
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Textbook Question
Chapter 33, Problem 17PE
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.
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Integrated ConceptsThe primary decay mode for the negative pion is π-→μ-+ v-μ . (a) What is the energy release in MeV in this decay? (b) Using conservation of momentum,how much energy does each of the decay products receive, given the π- is at rest when it decays? You may assume the muon antineutrino is massless and has momentum p= E/C , just like a photon.
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(a) How much energy would be released if the proton did decay via the conjectured reaction p → π0+e+ ? (b) Given that the π0 decays to two s and that the e+ will find an electron to annihilate, what total energy is ultimately produced in proton decay? (c) Why is this energy greater than the proton’s total mass (converted to energy)?
Chapter 33 Solutions
College Physics
Ch. 33 - The total energy in the beam of an accelerator is...Ch. 33 - Synchrotron radiation takes energy from an...Ch. 33 - What two major limitations prevent us from...Ch. 33 - What are the advantages of collidingbeam...Ch. 33 - Large quanti?es of antimatter isolated from normal...Ch. 33 - Massless particles are not only neutral, they are...Ch. 33 - Massless particles must travel at the speed of...Ch. 33 - When a stat erupts in a supernova explosion, huge...Ch. 33 - Theorists have had spectacular success in...Ch. 33 - What lifetime do you expect for an antineutron...
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