
Corrections to Sept 2018 Revision of Solutions to Problems for Student Friendly Quantum Field Theory

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Significant Corrections (may impact learning process)
Pg 
Date Posted 
Significant Correction 
Reported by (blank = the author) 
71 
Aug 13, 2019 
Chap 7, Prob 2: I was very sloppy with this solution. There are several typos plus I used my own mental shortcut notation, which is quicker when I work alone, but is actually not quite correct and can be confusing. See corrected version Revision of Chap 7 Prob 2 solution. 
Roberto Vio 
74 
Oct 12, 2020 
Chap. 7, Prob. 6. In the Ans (second part), 2^{nd} line: the e^ikx and e^ikx outside and to the right of the brackets should be deleted. In the first underbracket of that row, e^ikx should have k primed. In the second underbracket, the summation should also be over r. 
Nadeem Afana 
815 
Aug 14, 2019 
Chap 8, Prob. 15: The subscript r_{2} on v_bar should be s_{2}. 3 places. To avoid confusion with the subscripts on the photon polarizations. 
Roberto Vio 
816 
Aug 14, 2019 
Chap 8, Prob. 16: The subscripts r_{i} on v and u_bar should be s_{i}. 6 places. To avoid confusion with the subscripts on the photon polarizations. 
Roberto Vio 
Minor Corrections (should not impact learning process)
Pg 
Date Posted 
Minor Correction 
Reported by 
414 
Oct 5, 2018 
Third row up from bottom, middle column: The referenced equation (429) should be on same row aligned with right margin. 

82 
Nov 17, 2020 
2^{nd} line of eq (A): The first E_{p} term inside the square root should have p primed 
Nadeem Afana 
86 
Nov 17, 2020 
Prob 66, 3^{rd} line: The p in VE_{p} should be primed 
Nadeem Afana 
89 
Nov 17, 2020 
Sect. “First Type of Compton Positron …”, 1^{st} line: delete underline on blank space 
Nadeem Afana 
812 
Nov 17, 2020 
Under bracket on <00> is upside down 
Nadeem Afana 
812 
Nov 17, 2020 
Prob. 9, first line after (P91): change “middle” to innermost  
Nadeem Afana 



