Supersymmetry and String Theory

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
1 reply · 9K views
Golfer
Messages
18
Reaction score
0
I am reading Michael Hines new book, Supersymmetry and String Theory. He keeps referring to "tree-level". What is this?
 
Physics news on Phys.org
"Tree-level" refers to Feynman diagrams with no loops. That is, 0th order in perturbation theory (h-bar).
 

Similar threads

Undergrad Is Supersymmetry required by String theory?
  • TheHeraclitus
  • · Replies 3 ·
  • Beyond the Standard Models
Replies
3
Graduate Percentage of String Theory Research in Theoretical Physics
  • Maximise24
  • · Replies 11 ·
  • Beyond the Standard Models
Replies
11
Undergrad String theory vs Quantum field theory
  • KleinMoretti
  • · Replies 1 ·
  • Beyond the Standard Models
Replies
1
Graduate New string formulae for Higgs mass and cosmological constant
  • mitchell porter
  • · Replies 6 ·
  • Beyond the Standard Models
Replies
6
Undergrad What Are the Empirical Challenges Facing Quantum Gravity Theories?
  • ohwilleke
  • · Replies 105 ·
  • Beyond the Standard Models
4
Replies
105
Graduate The Emergence of Space-time in String Theory
  • bhobba
  • · Replies 33 ·
  • Beyond the Standard Models
2
Replies
33
Undergrad Unifying string theory and loop quantum gravity
  • kodama
  • · Replies 2 ·
  • Beyond the Standard Models
Replies
2
Graduate Basic Scheme and Fundamental Equations of String Theory
  • masteralien
  • · Replies 26 ·
  • Beyond the Standard Models
Replies
26
Graduate Supersymmetry: A Fundamental Principle or Just Bookkeeping?
  • dx
  • · Replies 12 ·
  • Beyond the Standard Models
Replies
12
High School Looking for help understanding string theory
  • Physics_is_beautiful
  • · Replies 10 ·
  • Beyond the Standard Models
Replies
10