English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Hidden constants: The θ parameter of QCD and the cosmological constant of N = 8 supergravity

MPS-Authors
/persons/resource/persons20713

Nicolai,  Hermann
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)

350989.pdf
(Publisher version), 822KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Aurilia, A., Nicolai, H., & Townsend, P. K. (1980). Hidden constants: The θ parameter of QCD and the cosmological constant of N = 8 supergravity. Nuclear Physics B, 176(2), 509-522. doi:10.1016/0550-3213(80)90466-6.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-5E86-3
Abstract
For field theories that include the abelian gauge field Aμνvarrho the field equations allow an arbitrary integration constant, which does not appear in the lagrangian but which does affect the physics. We present two applications: (i) the θ parameter of effective lagrangians for chiral symmetry breaking in QCD, and (ii) the cosmological constant in N = 8 supergravity, which does not require a gauging of the O(8) symmetry, but is rather due to a spontaneous breakdown of supersymmetry.