We present results of a population synthesis study aimed at examining the role of spin-kick alignment in producing a correlation between the spin period of the first-born neutron star and the orbital eccentricity of observed double neutron star binaries in the Galactic disk. We find spin-kick alignment to be compatible with the observed correlation, but not to alleviate the requirements for low...

The introduction of a crossing angle in e+ecolliders causes nonlinear coupling between horizontal motion and longitudinal motion. This is illustrated in Figure 1. The beam-beam kick occurs when the particle passes the center of the opposing bunch. The strength of the kick, ∆r' = F(r), is a nonlinear function of the distance, r, between the particle and the center of the opposite bunch. In head-...

The inferred parameters of the binary black hole GW151226 are consistent with nonzero spin for the most massive black hole, misaligned from the binary's orbital angular momentum. If the black holes formed through isolated binary evolution from an initially aligned binary star, this misalignment would then arise from a natal kick imparted to the first-born black hole at its birth during stellar ...

The decoherence behavior of a beam centroid motion after a kick is studied using a two-particle model. A simple theory based on averaging of the governing equation is developed. The effects of a finite chromaticity and synchrotron motion are taken into account. Increasing the tune spread in the beam, a transition from a head-tail instability to a stable decay of an initial kick is explicitly de...

We study the dynamics of a quantum spin ensemble controlled by trains of ultrashort pulses. To model disturbances of the kicks, we consider that the spins are submitted to different kick trains which follow regular, random, stochastic, or chaotic dynamical processes. These are described by dynamical systems on a torus. We study the quantum decoherence and the population relaxation of the spin e...

We explore the population of candidate pre-low-mass X-ray binaries in which a neutron star accretes mass from the wind of a low-mass companion (mass ≤ 2M⊙) in the framework of a binary population synthesis study. The simulated accretion-luminosity distribution shows a primary peak close to 10 erg/s and a secondary peak near 10 erg/s. The relative contribution of the two peaks depends primarily ...

A novel technique is presented to precisely measure the multipole components at each triplet inside the RHIC Interaction Regions (IRs). The technique is based on measurements of the strength of the overall kick that the orbit naturally experiences at a particular triplet due to the presence of linear and nonlinear errors. To measure the kick strength at the triplet, the action and phase before ...

The large-step Markov chain (LSMC) approach is the most effective known heuristic for large symmetric TSP instances; cf. recent results of [Martin, Otto and Felten, 1991] and [Johnson, 1990]. In this paper, we examine relationships among (i) the underlying local optimization engine within the LSMC approach, (ii) the “kick move” perturbation that is applied between successive local search descen...