CERN Accelerating science

Published Articles

Darreres entrades:
2015-04-18
07:49
Analytical methods for describing charged particle dynamics in general focusing lattices using generalized Courant-Snyder theory / Qin, Hong ; Davidson, Ronald C ; Burby, J W ; Chung, Moses
The dynamics of charged particles in general linear focusing lattices with quadrupole, skew-quadrupole, dipole, and solenoidal components, as well as torsion of the fiducial orbit and variation of beam energy is parameterized using a generalized Courant-Snyder (CS) theory, which extends the original CS theory for one degree of freedom to higher dimensions. The envelope function is generalized into an envelope matrix, and the phase advance is generalized into a 4D symplectic rotation, or an U(2) element. [...]
arXiv:1504.04314.- 2015 - 27 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 044001 External link: Preprint

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2015-04-18
07:49
Large-scale, realistic laboratory modeling of M2 internal tide generation at the Luzon Strait / Mercier, Matthieu J (MIT-MECHE) ; Gostiaux, Louis (LMFA) ; Helfrich, Karl (WHOI) ; Sommeria, Joël (LEGI) ; Viboud, Samuel (LEGI) ; Didelle, Henri (LEGI) ; Saidi, Sasan (MIT-MECHE) ; Dauxois, Thierry (Phys-ENS) ; Peacock, Thomas (MIT-MECHE)
The complex double-ridge system in the Luzon Strait in the South China Sea (SCS) is one of the strongest sources of internal tides in the oceans, associated with which are some of the largest amplitude internal solitary waves on record. An issue of debate, however, has been the specific nature of their generation mechanism. [...]
arXiv:1504.04193.- 2015 - Published in : American Geophysical Union 4 (2013) 5704-5709 External link: Preprint

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2015-04-18
07:49
Excitation functions of proton-induced reactions on natural Nd and production of radionuclides relevant for double beta decay: Completing measurement in 5-35 MeV energy range / Lebeda, O (Nuclear Physics Institute AS CR) ; Lozza, V (Institut fuer Kern und Teilchenphysik,Universitaet Dresden) ; Petzoldt, J (Institut fuer Kern und Teilchenphysik,Universitaet Dresden) ; Stursa, J (Nuclear Physics Institute AS CR) ; Zdychova, V (Nuclear Physics Institute AS CR) ; Zuber, K (Institut fuer Kern und Teilchenphysik,Universitaet Dresden)
Cross-sections for the proton-induced reactions on natural neodymium in energy regions 5-10 MeV and 30-35 MeV were measured using the cyclotron U-120M at the Nuclear Physics Institute at Rez near Prague. This measurement completes the investigation previously done in the 10-30 MeV energy range. [...]
arXiv:1504.04329.- 2015 - Published in : Nuclear Physics A Volume 929 (2014) 129-142 External link: Preprint

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2015-04-18
07:48
Quark Spin in Proton from Anomalous Ward Indentity / Yang, Yi-Bo ; Gong, Ming ; Liu, Keh-Fei ; Sun, Mingyang
We report a quark spin calculation from the anomalous Ward identity with overlap fermions on 2+1 flavor dynamical fermion configurations with light sea quark masses. Such a formulation decomposes the divergence of the flavor-singlet axial-vector current into a quark pseudoscalar term and a triangle anomaly term, flavor by flavor. [...]
arXiv:1504.04052.- 2015 - 7 p. External link: Preprint

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2015-04-18
07:46
Dilaton black holes coupled to nonlinear electrodynamic field / Sheykhi, A ; Hajkhalili, S
The theory of nonlinear electrodynamics has got a lot of attentions in recent years. It was shown that Born-Infeld nonlinear electrodynamics is not the only modification of the linear Maxwell's field which keeps the electric field of a charged point particle finite at the origin, and other type of nonlinear Lagrangian such as exponential and logarithmic nonlinear electrodynamics can play the same role. [...]
arXiv:1504.04009.- 2015 - 22 p. - Published in : Phys. Rev. D 89 (2014) 104019 External link: Preprint

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2015-04-18
07:46
Statefinder diagnosis for holographic dark energy in the DGP braneworld / Ghaffari, S ; Sheykhi, A ; Dehghani, M H
Many dark energy (DE) models have been proposed, in recent years, to explain acceleration of the Universe expansion. It seems necessary to discriminate the various DE models in order to check the viability of each model. [...]
arXiv:1504.04008.- 2015 - 14 p. - Published in : Phys. Rev. D 91 (2015) 023007 External link: Preprint

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2015-04-18
07:45
A New Method to Calculate the Stochastic Background of Gravitational Waves Generated by Compact Binaries / Evangelista, E F D ; de Araujo, J C N
In the study of gravitational waves (GWs), the stochastic background generated by compact binary systems are among the most important kinds of signals. The reason for such an importance has to do with their probable detection by the interferometric detectors [such as the Advanced LIGO (ALIGO) and Einstein Telescope (ET)] in the near future. [...]
arXiv:1504.04300.- 2015 - 10 p. - Published in : Mod. Phys. Lett. A 28 (2013) 1350174 External link: Preprint

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2015-04-18
07:45
A solution to the baryon-DM coincidence problem in the CMSSM with a 126-GeV Higgs boson / Kamada, Ayuki ; Kawasaki, Masahiro ; Yamada, Masaki
We show that the baryon-dark matter coincidence problem is solved in the CMSSM. The baryons and dark matter are generated simultaneously through the late-time decay of non-topological solitons, Q-balls, which are formed after the Affleck-Dine baryogenesis. [...]
arXiv:1405.6577; IPMU 14-0127; ICRR-REPORT-683-2014-9.- 2015 - 5 p. - Published in : Phys. Rev. D 91 (2015) 081301 External link: Preprint

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2015-04-18
06:29
Thermodynamics of strong interactions / Hagedorn, R (CERN)
1973 - 54 p. - Published in : Cargese Lect.Phys.: 6 (1973) , pp. 643-716

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2015-04-17
06:22
Intervention Management from Operation to Shutdown / Garino, Cedric (CERN) ; Daudin, Benoit (CERN) ; De Jonghe, Jurgen (CERN) ; Dorsival, Alexandre (CERN) ; Dos Santos Pedrosa, Fernando (CERN) ; Dumont, Gerald (CERN) ; Foraz, Katy (CERN) ; Reguero Fuentes, Eloy (CERN)
The Intervention Management Planning and Coordination Tool (IMPACT) is now widely used in all the accelerator complex and beyond. This unique repository improves the availability of the intervention information for all facilities, and enhances its traceability. [...]
2013 - 3 p. - Published in : (2013) , pp. THPWA035 Fulltext: PDF; External link: JACoW server

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