http://prd.aps.org/ Recent articles in Physical Review D en-us Copyright (c) 2009 The American Physical Society 2009-11-20T22:15:16-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-20T22:15:16-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevD.80.106005 Author(s): Allan Adams, Albion Lawrence, and Ian Swanson<br/>We construct exact two-dimensional conformal field theories, corresponding to closed string tachyon and metric profiles invariant under shifts in a null coordinate, which can be constructed from any two-dimensional renormalization group flow. These solutions satisfy first order equations of motion i...<br/>[Phys. Rev. D 80, 106005] Published Fri Nov 20, 2009 Allan Adams, Albion Lawrence, and Ian Swanson 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.106005 Phys. Rev. D 80, 106005 text/html article Physical Review D 80 10 2009-11-20T00:00:00-05:00 106005 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.105020 Author(s): Abhishek Agarwal<br/>We construct a massive non-Abelian N=1 supersymmetric Yang-Mills theory on R^{3} . This is achieved by using a nonlocal gauge and a Poincare invariant mass term for gluons due to Nair. The underlying supersymmetry algebra is shown to be a noncentral extension of the Poincare algebra by the spacetime...<br/>[Phys. Rev. D 80, 105020] Published Fri Nov 20, 2009 Abhishek Agarwal 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.105020 Phys. Rev. D 80, 105020 text/html article Physical Review D 80 10 2009-11-20T00:00:00-05:00 105020 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104030 Author(s): S. Capozziello, E. Piedipalumbo, C. Rubano, and P. Scudellaro<br/>In the framework of phantom quintessence cosmology, we use the Noether Symmetry Approach to obtain general exact solutions for the cosmological equations. This result is achieved by the quintessential (phantom) potential determined by the existence of the symmetry itself. A comparison between the th...<br/>[Phys. Rev. D 80, 104030] Published Fri Nov 20, 2009 S. Capozziello, E. Piedipalumbo, C. Rubano, and P. Scudellaro 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104030 Phys. Rev. D 80, 104030 text/html article Physical Review D 80 10 2009-11-20T00:00:00-05:00 104030 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104029 Author(s): Eloy Ayón-Beato, Alan Garbarz, Gaston Giribet, and Mokhtar Hassaïne<br/>We show that three-dimensional massive gravity admits Lifshitz metrics with generic values of the dynamical exponent z as exact solutions. At the point z=3, exact black hole solutions that are asymptotically Lifshitz arise. These spacetimes are three-dimensional analogues of those that were recently...<br/>[Phys. Rev. D 80, 104029] Published Fri Nov 20, 2009 Eloy Ayón-Beato, Alan Garbarz, Gaston Giribet, and Mokhtar Hassaïne 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104029 Phys. Rev. D 80, 104029 text/html article Physical Review D 80 10 2009-11-20T00:00:00-05:00 104029 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.103518 Author(s): Bohdan Grzadkowski and José Wudka<br/>We discuss cosmological consequences of the existence of physics beyond the standard model that exhibits Banks-Zaks and unparticle behavior in the UV and IR, respectively. We first derive the equation of state for unparticles and use it to obtain the temperature dependence of the corresponding energ...<br/>[Phys. Rev. D 80, 103518] Published Fri Nov 20, 2009 Bohdan Grzadkowski and José Wudka 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.103518 Phys. Rev. D 80, 103518 text/html article Physical Review D 80 10 2009-11-20T00:00:00-05:00 103518 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.096006 Author(s): I. Bediaga, I. I. Bigi, A. Gomes, G. Guerrer, J. Miranda, and A. C. dos Reis<br/>We describe a novel use of the Dalitz plot to probe CP symmetry in three-body modes of B and D mesons. It is based on an observable inspired by astronomers’ practice, namely the significance in the difference between corresponding Dalitz plot bins. It provides a model-independent mapping of local ...<br/>[Phys. Rev. D 80, 096006] Published Fri Nov 20, 2009 I. Bediaga, I. I. Bigi, A. Gomes, G. Guerrer, J. Miranda, and A. C. dos Reis 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.096006 Phys. Rev. D 80, 096006 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 096006 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.094015 Author(s): Fayyazuddin<br/>Using the unitarity, SU(2) and C invariance of hadronic interactions, the bounds on final state phases are derived. It is shown that values obtained for the final state phases relevant for the direct CP asymmetries A_{CP} (B^{0} →K^{+} π^{-} ,K^{0} π^{0} ) are compatible with experimental values...<br/>[Phys. Rev. D 80, 094015] Published Fri Nov 20, 2009 Fayyazuddin 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.094015 Phys. Rev. D 80, 094015 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 094015 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.094014 Author(s): Rubén Flores-Mendieta<br/>The baryon magnetic and transition magnetic moments are computed in heavy baryon chiral perturbation theory in the large-N_{c} limit, where N_{c} is the number of colors. One-loop nonanalytic corrections of orders m_{q}^{1/2} and m_{q} ln⁡m_{q} are incorporated into the analysis, where contributio...<br/>[Phys. Rev. D 80, 094014] Published Fri Nov 20, 2009 Rubén Flores-Mendieta 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.094014 Phys. Rev. D 80, 094014 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 094014 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.093004 Author(s): E. I. Lashin and N. Chamoun<br/>We study a specific texture of the neutrino mass matrix, namely the models with one 2×2 subdeterminant equal to zero. We carry out a complete phenomenological analysis with all possible relevant correlations. Every pattern of the six possible ones is found able to accommodate the experimental data,...<br/>[Phys. Rev. D 80, 093004] Published Fri Nov 20, 2009 E. I. Lashin and N. Chamoun 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.093004 Phys. Rev. D 80, 093004 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 093004 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.092007 Author(s): B. Aubert et al.<br/>We present measurements of the branching fraction B and longitudinal polarization fraction f_{L} for B^{0} →a_{1} (1260)^{+} a_{1} (1260)^{-} decays, with a_{1} (1260)^{±} →π^{-} π^{+} π^{±} . The data sample, collected with the BABAR detector at the SLAC National Accelerator Laboratory, re...<br/>[Phys. Rev. D 80, 092007] Published Fri Nov 20, 2009 B. Aubert et al. 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.092007 Phys. Rev. D 80, 092007 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 092007 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.092006 Author(s): V. M. Abazov et al.<br/>We present measurements of the top quark mass (m_{t} ) in tt [over ¯] candidate events with two final state leptons using 1  fb^{-1} of data collected by the D0 experiment. Our data sample is selected by requiring two fully identified leptons or by relaxing one lepton requirement to an isolated...<br/>[Phys. Rev. D 80, 092006] Published Fri Nov 20, 2009 V. M. Abazov et al. 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.092006 Phys. Rev. D 80, 092006 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 092006 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.092005 Author(s): B. Aubert et al.<br/>We present the result from a precision measurement of the mass of the τ lepton, M_{τ} , based on 423  fb^{-1} of data recorded at the Υ(4S) resonance with the BABAR detector. Using a pseudomass endpoint method, we determine the mass to be 1776.68±0.12(stat)±0.41(syst)  MeV. We also meas...<br/>[Phys. Rev. D 80, 092005] Published Fri Nov 20, 2009 B. Aubert et al. 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.092005 Phys. Rev. D 80, 092005 text/html article Physical Review D 80 9 2009-11-20T00:00:00-05:00 092005 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.104028 Author(s): János Majár<br/>One of the most active field of research in general relativity is the description of the spin properties of astrophysical objects. The main tool in the description of the gravitational waves emitted by compact binary systems in the inspiral era is the post-Newtonian (PN) approximation, where spin ef...<br/>[Phys. Rev. D 80, 104028] Published Thu Nov 19, 2009 János Majár 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104028 Phys. Rev. D 80, 104028 text/html article Physical Review D 80 10 2009-11-19T00:00:00-05:00 104028 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.103517 Author(s): Carroll Wainwright and Stefano Profumo<br/>We study the impact of a strongly first-order electroweak phase transition on the thermal relic abundance of particle species that could constitute the dark matter and that decoupled before the phase transition occurred. We define a dilution factor induced by generic first-order phase transitions, a...<br/>[Phys. Rev. D 80, 103517] Published Thu Nov 19, 2009 Carroll Wainwright and Stefano Profumo 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.103517 Phys. Rev. D 80, 103517 text/html article Physical Review D 80 10 2009-11-19T00:00:00-05:00 103517 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.103516 Author(s): Erminia Calabrese, Asantha Cooray, Matteo Martinelli, Alessandro Melchiorri, Luca Pagano, Anže Slosar, and George F. Smoot<br/>Weak gravitational lensing leaves a characteristic imprint on the cosmic microwave background temperature and polarization angular power spectra. Here, we investigate the possible constraints on the integrated lensing potential from future cosmic microwave background angular spectra measurements exp...<br/>[Phys. Rev. D 80, 103516] Published Thu Nov 19, 2009 Erminia Calabrese, Asantha Cooray, Matteo Martinelli, Alessandro Melchiorri, Luca Pagano, Anže Slosar, and George F. Smoot 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.103516 Phys. Rev. D 80, 103516 text/html article Physical Review D 80 10 2009-11-19T00:00:00-05:00 103516 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.096005 Author(s): Federica Bazzocchi and Stefano Morisi<br/>Group theoretical arguments seem to indicate the discrete symmetry S_{4} as the minimal flavor symmetry compatible with tribimaximal neutrino mixing. We prove in a model-independent way that indeed S_{4} can realize exact tribimaximal mixing through different symmetry breaking patterns. We present t...<br/>[Phys. Rev. D 80, 096005] Published Thu Nov 19, 2009 Federica Bazzocchi and Stefano Morisi 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.096005 Phys. Rev. D 80, 096005 text/html article Physical Review D 80 9 2009-11-19T00:00:00-05:00 096005 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.094013 Author(s): Jui-yu Chiu, Andreas Fuhrer, Randall Kelley, and Aneesh V. Manohar<br/>Previous work on electroweak radiative corrections to high-energy scattering using soft-collinear effective theory (SCET) has been extended to include external transverse and longitudinal gauge bosons and Higgs bosons. This allows one to compute radiative corrections to all parton-level hard scatter...<br/>[Phys. Rev. D 80, 094013] Published Thu Nov 19, 2009 Jui-yu Chiu, Andreas Fuhrer, Randall Kelley, and Aneesh V. Manohar 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.094013 Phys. Rev. D 80, 094013 text/html article Physical Review D 80 9 2009-11-19T00:00:00-05:00 094013 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.091702 Author(s): Antonio Pich and Paula Tuzón<br/>In multi-Higgs-doublet models the alignment in flavor space of the relevant Yukawa matrices guarantees the absence of tree-level flavor-changing couplings of the neutral scalar fields. We analyze the consequences of this condition within the two-Higgs-doublet model and show that it leads to a generi...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. D 80, 091702] Published Thu Nov 19, 2009 Antonio Pich and Paula Tuzón 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.091702 Phys. Rev. D 80, 091702 text/html article Physical Review D 80 9 2009-11-19T00:00:00-05:00 091702 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.104027 Author(s): J. W. Wagenaar and T. A. Rijken<br/>In this article we quantize (massive) higher spin (1≤j≤2) fields by means of Dirac’s constrained Hamilton procedure both in the situation were they are totally free and were they are coupled to (an) auxiliary field(s). A full constraint analysis and quantization is presented by determining and...<br/>[Phys. Rev. D 80, 104027] Published Wed Nov 18, 2009 J. W. Wagenaar and T. A. Rijken 2009-11-18T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104027 Phys. Rev. D 80, 104027 text/html article Physical Review D 80 10 2009-11-18T00:00:00-05:00 104027 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.105019 Author(s): A. Higuchi and P. J. Walker<br/>We use the semiclassical approximation in perturbative scalar quantum electrodynamics to calculate the quantum correction to the Larmor radiation formula to first order in Planck’s constant in the nonrelativistic approximation, choosing the initial state of the charged particle to be a momentum ei...<br/>[Phys. Rev. D 80, 105019] Published Tue Nov 17, 2009 A. Higuchi and P. J. Walker 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.105019 Phys. Rev. D 80, 105019 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 105019 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.105018 Author(s): Avinash Dhar, Gautam Mandal, and Spenta R. Wadia<br/>We show that a Nambu-Jona-Lasinio type four-fermion coupling at the z=3 Lifshitz-like fixed point in 3+1 dimensions is asymptotically free and generates a mass scale dynamically. This result is nonperturbative in the limit of a large number of fermion species. The theory is ultraviolet complete and ...<br/>[Phys. Rev. D 80, 105018] Published Tue Nov 17, 2009 Avinash Dhar, Gautam Mandal, and Spenta R. Wadia 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.105018 Phys. Rev. D 80, 105018 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 105018 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104026 Author(s): Luís C. B. Crispino, Atsushi Higuchi, and Ednilton S. Oliveira<br/>The absorption cross section of Reissner-Nordström black holes for the electromagnetic field is computed numerically for arbitrary frequencies, taking into account the coupling of the electromagnetic and gravitational perturbations. We also compute the conversion coefficients of electromagnetic to ...<br/>[Phys. Rev. D 80, 104026] Published Tue Nov 17, 2009 Luís C. B. Crispino, Atsushi Higuchi, and Ednilton S. Oliveira 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104026 Phys. Rev. D 80, 104026 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 104026 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104025 Author(s): Enrico Barausse, Etienne Racine, and Alessandra Buonanno<br/>Using a Legendre transformation, we compute the unconstrained Hamiltonian of a spinning test particle in a curved spacetime at linear order in the particle spin. The equations of motion of this unconstrained Hamiltonian coincide with the Mathisson-Papapetrou-Pirani equations. We then use the formali...<br/>[Phys. Rev. D 80, 104025] Published Tue Nov 17, 2009 Enrico Barausse, Etienne Racine, and Alessandra Buonanno 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104025 Phys. Rev. D 80, 104025 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 104025 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104024 Author(s): Peng Xu and Yongge Ma<br/>A spin foam model of three dimensional gravity nonminimally coupled with a scalar field is studied. By discretization of the scalar field, the model is worked out precisely in a purely combinational way. It is shown that the quantum physics of the scalar matter is totally encoded into the modified d...<br/>[Phys. Rev. D 80, 104024] Published Tue Nov 17, 2009 Peng Xu and Yongge Ma 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104024 Phys. Rev. D 80, 104024 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 104024 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.104023 Author(s): Cosimo Bambi, Katherine Freese, Tomohiro Harada, Rohta Takahashi, and Naoki Yoshida<br/>The accretion process onto spinning objects in Kerr spacetimes is studied with numerical simulations. Our results show that accretion onto compact objects with Kerr parameter (characterizing the spin) |a|<M and |a|>M is very different. In the superspinning case, for |a| moderately larger than M, the accretion ...<br/>[Phys. Rev. D 80, 104023] Published Tue Nov 17, 2009 Cosimo Bambi, Katherine Freese, Tomohiro Harada, Rohta Takahashi, and Naoki Yoshida 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.104023 Phys. Rev. D 80, 104023 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 104023 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.103515 Author(s): Andrzej Odrzywołek<br/>A spherically symmetric, static model of the cosmological voids is constructed in the framework of the Tolman-Oppenheimer-Volkov equation with the cosmological constant. Extension of the Tooper result (dimensionless form of the TOV equation) is provided for nonzero Λ. Then, the equation is simplifi...<br/>[Phys. Rev. D 80, 103515] Published Tue Nov 17, 2009 Andrzej Odrzywołek 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.103515 Phys. Rev. D 80, 103515 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 103515 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.102004 Author(s): Christian Röver, Marie-Anne Bizouard, Nelson Christensen, Harald Dimmelmeier, Ik Siong Heng, and Renate Meyer<br/>Presented in this paper is a technique that we propose for extracting the physical parameters of a rotating stellar core collapse from the observation of the associated gravitational wave signal from the collapse and core bounce. Data from interferometric gravitational wave detectors can be used to ...<br/>[Phys. Rev. D 80, 102004] Published Tue Nov 17, 2009 Christian Röver, Marie-Anne Bizouard, Nelson Christensen, Harald Dimmelmeier, Ik Siong Heng, and Renate Meyer 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.102004 Phys. Rev. D 80, 102004 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 102004 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.101302 Author(s): Tower Wang<br/>Past and recent data analyses gave some hints of steps in dark energy. Considering dark energy as a dynamical scalar field, we investigate several models with various steps: a step in the scalar potential, a step in the kinetic term, a step in the energy density, and a step in the equation-of-state ...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. D 80, 101302] Published Tue Nov 17, 2009 Tower Wang 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.101302 Phys. Rev. D 80, 101302 text/html article Physical Review D 80 10 2009-11-17T00:00:00-05:00 101302 D15 D15 http://link.aps.org/doi/10.1103/PhysRevD.80.096004 Author(s): G. López Castro, L. López-Lozano, and A. Rosado<br/>Observing charge-parity (CP) or time-reversal (T) violations in the leptonic sector will give useful information to elucidate the nature of neutrinos. CP-violating couplings in charged leptonic currents carry out the weak phases necessary to break these symmetries. Here we study the interference of ...<br/>[Phys. Rev. D 80, 096004] Published Tue Nov 17, 2009 G. López Castro, L. López-Lozano, and A. Rosado 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.096004 Phys. Rev. D 80, 096004 text/html article Physical Review D 80 9 2009-11-17T00:00:00-05:00 096004 D1 D1 http://link.aps.org/doi/10.1103/PhysRevD.80.094012 Author(s): A. Martínez Torres, K. P. Khemchandani, D. Gamermann, and E. Oset<br/>A study of the J/ψππ and J/ψKK [over ¯] systems, treating them as coupled channels, has been made by solving the Faddeev equations, with the purpose of investigating the possibility of generation of the J^{PC} =1^{--} , Y(4260) resonance due to the interaction between these three mesons. In ord...<br/>[Phys. Rev. D 80, 094012] Published Tue Nov 17, 2009 A. Martínez Torres, K. P. Khemchandani, D. Gamermann, and E. Oset 2009-11-17T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevD.80.094012 Phys. Rev. D 80, 094012 text/html article Physical Review D 80 9 2009-11-17T00:00:00-05:00 094012 D1 D1