Research interests

• Perturbative calculations in high energy physics
  
• Automatic generation of Feynman diagrams
  
• Graph theory, combinatorics
  
• Quantum computation and information
  

Selected publications

• On the combinatorics of leftist trees,
  P. Nogueira,
  Discrete Appl. Math. 109 (2001) 253-278.
  
• The 3-loop QCD calculation of the moments of deep inelastic structure functions,
  S.A. Larin, P. Nogueira, T. van Ritbergen, J.A.M. Vermaseren,
  Nucl. Phys. B 492 (1997) 338-378.
  
• Initial-final state interference in   e⁺ e⁻ → H μ⁺ μ⁻,
  P. Nogueira, J.C. Romão,
  Z. Phys. C 60 (1993) 757-762.
  
• Automatic Feynman graph generation,
  P. Nogueira,
  J. Comput. Phys. 105 (1993) 279-289.
  

Software

• QGRAF: a computer program for the automatic generation of Feynman diagrams and their symbolic representation.
  

How to contact me

• by e-mail:
  

  click here.
  

• by post:
  

  Paulo Nogueira
  CFIF, Pavilhão de Física
  Instituto Superior Técnico
  Av. Rovisco Pais
  1049-001 Lisboa
  Portugal