Particle: Lecture 1

Lecture 1 of a 3rd year particle course.

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Last updated: April 17, 2019

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First submitted	April 17, 2019
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Hint	Answer
What does QCD stand for?	Quantum Chromo Dynamics
What does CPT stand for?	Charge transformation, Parity transformation and Time reversal
What is Parity transformation?	Transformation of a left-handed particle to a right-handed particle
What is Charge transformation?	Transformation of a particle to an antiparticle
What type of particle does a weak interaction act on?	Left-handed particles or Right-handed antiparticles
What is helicity?	Projection of the spin on the momentum axis
What symmetries are violated by weak interactions?	C and P
What constants equal 1 in the natural units?	h and c
Name the three families of leptons	Electron, Muon and Tauon
Express a baryon in terms of q=quark or p=anti-quark	qqq or ppp
Express a meson using the symbols given in the previous question	qp
Name all known quarks	Up, Down, Charm, Strange, Top and Bottom
Finish the Dirac "hole" theory: The theory poses that the __________ __ _______ ______ _____, that are solutions to the ____ _______, are filled with ________, and the _______ __ ____ _________ (holes) are manifested as ________ with ______ and ______ that are the _____ of those of the state.	continuum of negative energy states, Dirac equation, electrons, vacancies in this continuum, positrons, energy, momentum and negative