Chapter 44: Q15P (page 1364)
Which conservation law is violated in each of these proposed reactions and decays? (Assume that the products have zero orbital angular momentum.)
Short Answer
(a) Energy
(b) Strangeness.
(c) Charge.
Chapter 44: Q15P (page 1364)
Which conservation law is violated in each of these proposed reactions and decays? (Assume that the products have zero orbital angular momentum.)
(a) Energy
(b) Strangeness.
(c) Charge.
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Get started for freeThe rest energy of many short-lived particles cannot be measured directly but must be inferred from the measured momenta and known rest energies of the decay products. Consider the meson, which decays by the reaction. Calculate the rest energy of the meson given that the oppositely directed momenta of the created pions each have a magnitude 358.3 MeV. See Table 44-4 for the rest energies of the pions.
Question: An electron cannot decay into two neutrinos. Which of the following conservation laws would be violated if it did: (a) energy, (b) angular momentum, (c) charge, (d) lepton number, (e) linear momentum, (f) baryon number?
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(a) Show that the orbital speed of the star is given by
And therefore that the star’s period of revolution is
Independentof.Ignore any resistive forces.
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The particle and its products decay according to the scheme
(a) What are the final stable decay products? From the evidence,(b) is the particle, a fermion or a boson and (c) is it a meson or a baryon?(d) What is its baryon number?
(a) Calculate the momentum of the tau in kilogram meters per second. Relativistic effects must be considered.
(b) Find the radius of the circular path.
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