Weyl gauging of topologically massive gravity

Dengiz, Suat
Kilicarslan, Ercan
Tekin, Bayram
We construct a Weyl-invariant extension of topologically massive gravity, which remarkably turns out to include topologically massive electrodynamics, with a Proca mass term, conformally coupled to a scalar field. The action has no dimensionful parameters; therefore, the masses are generated via symmetry breaking either radiatively in flat backgrounds or spontaneously in constant curvature backgrounds. The broken phase of the theory, generically, has a single massive spin-2 and a massive spin-1 excitation. Chiral gravity in asymptotically anti-de Sitter spacetimes does not arise as a low energy theory, while chiral gravity in de Sitter spacetime is not ruled out.


Minimal massive gravity: Conserved charges, excitations, and the chiral gravity limit
Tekin, Bayram (2014-10-15)
We find the excitations and construct the conserved charges (mass and angular momentum) of the recently found minimal massive gravity (MMG) in 2 + 1 dimensions in asymptotically anti-de Sitter spacetimes. The field equation of the theory does not come from an action and lacks the required Bianchi identity needed to define conserved charges. But the theory, which also provides a healthy extension of the topologically massive gravity in the bulk and boundary of spacetime, does admit conserved charges for the ...
Chern-Simons modified general relativity: Conserved charges
Tekin, Bayram (American Physical Society (APS), 2008-01-01)
We construct the conserved charges (mass and angular momentum) of the Chern-Simons modified general relativity in asymptotically flat and anti-de Sitter (AdS) spacetimes. Our definition is based on background Killing symmetries and reduces to the known expressions in the proper limits.
Mass spectra of heavy quarkonia and B-c decay constant for static scalar-vector interactions with relativistic kinematics
Ikhdair, SM; Sever, Ramazan (World Scientific Pub Co Pte Lt, 2005-11-10)
We reproduce masses of the self-conjugate and non-self-conjugate mesons in the context of the spinless Salpeter equation taking into account the relativistic kinematics and the quark spins. The hyperfine splittings for the 2S charmonium and IS bottomonium are also calculated. Further, the pseudoscalar and vector decay constants of the Be meson and the unperturbed radial wave function at the origin are also calculated. We have obtained a local equation with a complete relativistic corrections to a class of t...
Higgs mechanism for new massive gravity and Weyl-invariant extensions of higher-derivative theories
Dengiz, Suat; Tekin, Bayram (American Physical Society (APS), 2011-07-19)
New massive gravity provides a nonlinear extension of the Fierz-Pauli mass for gravitons in 2 + 1 dimensions. Here we construct a Weyl-invariant version of this theory. When the Weyl symmetry is broken, the graviton gets a mass in analogy with the Higgs mechanism. In (anti)-de Sitter backgrounds, the symmetry can be broken spontaneously, but in flat backgrounds radiative corrections, at the two-loop level, break the Weyl symmetry a la Coleman-Weinberg mechanism. We also construct the Weyl-invariant extensio...
Scalar mesons in radiative phi ->(KK-0)-K-0 gamma decay
Gokalp, A.; Korkmaz, C. S.; Yılmaz, Osman (American Physical Society (APS), 2007-01-01)
We study the radiative phi -> K-0(K) over bar (0)gamma decay within a phenomenological framework by considering the contributions of the f(0)(980) and a(0)(980) scalar resonances. We calculate the branching ratio B(phi -> K-0(K) over bar (0)gamma) by employing the coupling constants g(f0)K(+)K(-) and g(a0)K(+)K(-) as determined by different experimental groups.
Citation Formats
S. Dengiz, E. Kilicarslan, and B. Tekin, “Weyl gauging of topologically massive gravity,” PHYSICAL REVIEW D, pp. 0–0, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38366.