Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Extra Dimensions and the strong CP problem.

M Chaichian1, A B Kobakhidze

  • 1High Energy Physics Division, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014 Helsinki, Finland. Masud.Chaichian@helsinki.fi

Physical Review Letters
|November 3, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Solution of the stochastic Langevin equations for clustering of particles in random flows in terms of the Wiener path integral.

Physical review. E, Statistical, nonlinear, and soft matter physics·2010
Same author

New concept of relativistic invariance in noncommutative space-time: twisted poincare symmetry and its implications.

Physical review letters·2005
Same author

Hydrogen atom spectrum and the lamb shift in noncommutative QED.

Physical review letters·2001
See all related articles

In higher dimensional theories, the strong CP problem is absent due to trivial vacuum structure and the lack of instantonic configurations on the brane world volume. This resolves the CP violation issue in models with quasilocalized gluons.

Area of Science:

  • Theoretical Physics
  • High-Energy Physics
  • String Theory

Background:

  • Higher dimensional theories, like brane world models, introduce complexities in vacuum structure.
  • Non-Abelian gauge fields and their behavior at large distances are crucial for understanding fundamental forces.
  • The strong CP problem in quantum chromodynamics (QCD) remains a significant unsolved issue.

Purpose of the Study:

  • To investigate the vacuum structure of higher dimensional theories with quasilocalized non-Abelian gauge fields.
  • To determine if the strong CP problem is resolved in these specific brane world models.
  • To analyze the impact of higher dimensions and topology on CP-violating theta terms.

Main Methods:

  • Analysis of vacuum structure in higher dimensional brane world models.

Related Experiment Videos

  • Topological analysis of the 'infinity' in a (4+delta)-dimensional spacetime.
  • Investigation of finite action instantonic and solitonic configurations.

    • Main Results:

    • The vacuum structure in these models is found to be trivial.
    • The topology of infinity is S(3+delta), which does not support finite action instantonic configurations.
    • The CP-violating theta term vanishes on the brane world volume, and solitonic contributions are absent.

    Conclusions:

    • The strong CP problem is absent in brane world models with quasilocalized gluons.
    • The higher dimensional nature and topology inherently prevent CP violation.
    • These findings offer a potential resolution to the strong CP problem within specific theoretical frameworks.