Results 11 to 20 of about 5,199 (306)
Non-global jet evolution at finite Nc [PDF]
Nuclear Physics B, 2004 Resummations of soft gluon emissions play an important role in many applications of QCD, among them jet observables and small x saturation effects. Banfi, Marchesini, and Smye have derived an evolution equation for non-global jet observables that exhibits a remarkable analogy with the BK equation used in the small x context.
Heribert Weigert
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Nonlinear global modes in hot jets [PDF]
Journal of Fluid Mechanics, 2006 Since the experiments of Monkewitz et al. (J. Fluid Mech. vol. 213, 1990, p. 611), sufficiently hot circular jets have been known to give rise to self-sustained synchronized oscillations induced by a locally absolutely unstable region. In the present investigation, numerical simulations are carried out in order to determine if such synchronized states ...
Lutz Lesshafft +3 more
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J_{E_T}: A Global Jet Finding Algorithm [PDF]
, 2014 Code available at: https://github.com/LHCJet ...
Y. Bai, Zhenyu Han, Ran Lu
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Duality, Generalized Global Symmetries and Jet Space Isometries [PDF]
Universe, 2021 We revisit universal features of duality in linear and nonlinear relativistic scalar and Abelian 1-form theories with single or multiple fields, which exhibit ordinary or generalized global symmetries. We show that such global symmetries can be interpreted as generalized Killing isometries on a suitable, possibly graded, target space of fields or its ...
Athanasios Chatzistavrakidis +2 more
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Hydrogen Jet Flame Control by Global Mode
Flow, Turbulence and Combustion, 2023 AbstractIn this study, we employ the potential of the global instability phenomenon to qualitatively alter the dynamics of a turbulent flame. We adopt the large eddy simulation method and an in-house numerical code. For the combustion process we do not include explicit sub-filter modeling. The accuracy of this ‘no combustion model’ approach is verified
Wawrzak, Agnieszka +4 more
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Non-global logarithms and jet algorithms in high-p T jet shapes [PDF]
Journal of High Energy Physics, 2010 Journal of High Energy Physics, 2010 (8)
Banfi A +3 more
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Globally Minimizing Geodesics in Jet Space [PDF]
, 2021 The space $J^k$ of $k$-jets of a real function of one real variable $x$ admits the structure of Carnot group type. As such, $J^k$ admits a submetry (\sR submersion) onto the Euclidean plane. Horizontal lifts of Euclidean lines (which are the left-translates of horizontal one-parameter subgroups) are thus globally minimizing geodesics on $J^k$. All $J^k$
Alejandro Bravo-Doddoli +1 more
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Galaxies, 2019 The particle-in-cell (PIC) method was developed to investigate microscopic phenomena, and with the advances in computing power, newly developed codes have been used for several fields, such as astrophysical, magnetospheric, and solar plasmas.
Ken-Ichi Nishikawa +10 more
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Global instability of low-density jets [PDF]
Journal of Fluid Mechanics, 2017 The global stability of laminar axisymmetric low-density jets is investigated in the low Mach number approximation. The linear modal dynamics is found to be characterised by two features: a stable arc branch of eigenmodes and an isolated eigenmode. Both features are studied in detail, revealing that, whereas the former is highly sensitive to numerical ...
W. Coenen +3 more
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A Global Inventory of Feedback
Galaxies, 2023 Feedback from both supermassive black holes and massive stars plays a fundamental role in the evolution of galaxies and the inter-galactic medium. In this paper, we use available data to estimate the total amount of kinetic energy and momentum created ...
Timothy M. Heckman, Philip N. Best
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