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Objectives :-> To be able to learn how to compute life times and cross sections in field theory.
In second quantized Schordinger theory.
potential scattering; Coulomb scattering
scattering of paricles which are distinguishable
identical particle scattering in second quantized theory
Involving only scalar particles
Two body decays Lifetime for K-> 2pi
Three body decays ets > 3pi decays.
pion-pion scatteirng
Cross sections and transition probabilitites Involving atoms and photons
using quantum theory for photons and
nonrelativistic treatment for atoms and molecules
Interactions Involving photons
Nonrelativisitc particles
Spin zero particles
Spin half Dirac particles.
Potential scattering in different approximations taking example of Coulomb scattering
Nonrelativisic Schrodinger equation
Relativistic spin zero particle
Relativistic Dirac equation
Scattering of two charged particles
Including effects due to identical nature of particle
Spin zero and Spin 1/2 cases.
Coulomb Scattering
Assuming one particle to be very heavy and replace its effect by Coulomb potential
Nonrelativistic particles.
Relativistic spin zero particles
Relativistic spin half particles
How to repeat the Coulomb scattering
two nonidentical particles, without making an approximation
infinite mass for one particle.
nonrelaiviistic distinguishable particles with quantized theory for photons
nonrelaiviistic identical particles with quantized theory for photons
