ARTICLES

WIMP annihilation and cooling of neutron stars
Chris Kouvaris
[abstract]

Neutrino mass, dark energy, and the linear growth factor
Angeliki Kiakotou, { \ O} ystein Elgar{\o}y, and Ofer Lahav
[abstract]

Physical and geometrical interpretation of the $\epsilon \leq 0$ Szekeres models
Charles Hellaby and Andrzej Krasi\'{n}ski
[abstract]

Interacting tachyon: Cosmological evolution for a tachyon and a scalar field
A. de la Macorra and U. Filobello
[abstract]

Leptogenesis with many neutrinos
Marc-Thomas Eisele
[abstract]

New infinite-dimensional symmetry groups for heterotic string theory
Ya-Jun Gao

Robustness of key features of loop quantum cosmology
Abhay Ashtekar, Alejandro Corichi, and Parampreet Singh
[abstract]

Generalized Einstein-Aether theories and the Solar System
Camille Bonvin, Ruth Durrer, Pedro G. Ferreira, Glenn Starkman, and Tom G. Zlosnik
[abstract]

Observable properties of orbits in exact bumpy spacetimes
Jonathan R. Gair, Chao Li, and Ilya Mandel
[abstract]

Bootstrap and the physical values of $\pi{N}$ resonance parameters
K. Semenov-Tian-Shansky, Alexander V. Vereshagin, and Vladimir V. Vereshagin
[abstract]

Two-particle Green's functions in the diffusive approximation
A. V. Koshelkin
[abstract]

Radion stabilization from the vacuum on flat extra dimensions
El\ ' { \ i} Santos, A. P\'{e}rez-Lorenzana, and Luis O. Pimentel
[abstract]

Gravitational and higher-derivative interactions of a massive spin 5/2 field in (A)dS space
R. R. Metsaev

Integral equation for gauge invariant quark two-point Green's function in QCD
H. Sazdjian
[abstract]

BRIEF REPORTS

Coupling constant constraints in a nonminimally coupled phantom cosmology
Marek Szyd{\l}owski, Orest Hrycyna, and Aleksandra Kurek
[abstract]

Trapping horizons as inner boundary conditions for black hole spacetimes
Jos\ ' { e} Luis Jaramillo, Eric Gourgoulhon, Isabel Cordero-Carri\'{o}n, and Jos\ ' { e} Mar\ ' { \ i} a Ib\'{a}\~{n}ez
[abstract]