نتایج جستجو برای: kick
تعداد نتایج: 2489 فیلتر نتایج به سال:
The near-side ridge structure in the φη correlation observed by the CMS Collaboration for pp collisions at 7 TeV at the Large Hadron Collider can be explained by the momentum kick model in which the ridge particles are medium partons that suffer a collision with the jet and acquire a momentum kick along the jet direction. Similar to the early medium parton momentum distribution obtained in prev...
Mergers of compact objects may lead to different astrophysical phenomena: they may provide sources of observable gravitational radiation, and also they may be connected with gamma-ray bursts. Estimates of the rate with which such mergers take place are based on assumptions about various parameters describing the binary evolution. The distribution of one of these parameters the kick velocity a n...
This paper presents a simple iterated local search metaheuristic incorporating a k-opt local search (KLS), called Iterated KLS (IKLS for short), for solving the maximum clique problem (MCP). IKLS consists of three components: LocalSearch at which KLS is used, a Kick called LEC-Kick that escapes from local optima, and Restart that occasionally diversifies the search by moving to other points in ...
We present results from several simulations of equal mass black holes with spin. The spin magnitudes are S=m2 0:8 in all cases, but we vary the spin orientations arbitrarily, inside and outside the orbital plane. We find that in all but one case the final merged black hole acquires a kick of more than 1000 km=s, indicating that kicks of this magnitude are likely to be generic and should be expe...
We present experimental studies of the gain length and saturation power level from 1.5 nm to 1.5 Å at the Linac Coherent Light Source (LCLS). By disrupting the FEL process with an orbit kick, we are able to measure the X-ray intensity as a function of undulator length. This kick method is cross-checked with the method of removing undulator sections. We also study the FEL-induced electron energy...
We discuss the eeect of strong electromagnetic elds on chiral orientation in the framework of the linear model. Based on lessons we learn from computation of the eeective potential at one loop, we argue that the chiral U(1) anomaly dominates chiral disorientation driven by electromagnetism. We show that the anomaly eeect induces a quasi-instantaneous \kick" to eld conngurations along the 0 dire...
We study the mobility of solitons in lattices with quadratic (chi(2), alias second-harmonic-generating) nonlinearity. Using the notion of the Peierls-Nabarro potential and systematic numerical simulations, we demonstrate that, in contrast with their cubic (chi(3)) counterparts, the discrete quadratic solitons are mobile not only in the one-dimensional (1D) setting, but also in two dimensions (2...
The angular deflection of a 28.5 GeV electron beam passing off-axis between the jaws of a collimator, generating a transverse wakefield, were measured in End Station A (ESA) at SLAC. In total, fifteen different configurations of collimator geometry and material were tested: some were chosen for compatibility with previous measurements while others served to study the effect of geometry and tape...
A motion control and the corresponded strategy to realize cyclic ball passing motion in robot soccer games are presented in this paper. By this strategy, multiple mobile robots kick the ball in tum with high speed while they adjust or change their formation. The ball-kick controller is to drive the robot to an adequate position with a prescribed velocity in a fixed finite time. After kicking, t...
Lie Algebraic methodsl implemented with truncated power series algebra packages2 or libraries,3 have become important in nonlinear single-particle dynamics studies.4 Algorithms for nonlinear normal forms5 and one-turn map tracking, such as kick factorization and integrable polynomial factorization,7 have been becoming common numerical practices. Much progress has been made in the one-turn map t...
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