Notes for Physics 752
(Prof. Agashe) – Spring 2020

(1). Choice of Z_{1}_{ }getting rid of divergence in vertex
function even for

fermions being off-shell (and photon
momentum being non

zero)

(2). Proof (using Ward-Takahashi identity)
of Z_{1 }= Z_{2}

(3). From** **Weinberg’s
textbook on QFT: consideration as a candidate ground

state of a 50-50 superposition of the 2 “usual suspects” for ground
states

(for the case of **real** scalar
mass^2 < 0, i.e., **discrete** symmetry),
i.e.,

with positive/negative VEV for scalar field.

(4). Pion-Nucleon
system

The
following are notes from post-Spring break online lectures:

(5). Non-abelian
gauge theories: (a). classical
and (b). quantum-levels

(7). Theory of EW sector
of SM: (a). overview;
(b). bosonic
(separately, details of calculation of Z
decay width) and (c) fermionic
sectors

(8). EW
sector phenomenology: no
generational mixing (“non”-flavor): (a). overview;
(b) details

(9). Flavor phenomenology:
(a). overview
and (b). observables

(10). QCD: (a). history
and (b). theory/phenomenology
overview

(11). QCD phenomenology (details
of processes): (a). e^{+}e^{-} à all hadrons; (b). Deep
Inelastic Scattering (separately, convenient
form, specific to QED)

and (c).
Hard
scattering part of Hadron-hadron collisions (separately, convenient
form, specific to Drell-Yan process)

(12). Beyond SM:
(a). overview
of selected topics and (b). (some) details of grand unified theories (GUT).