CERN Accelerating science

Published Articles

Nyeste elementer:
2015-07-03
07:53
Stability of cooperation under image scoring in group interactions / Nax, Heinrich H ; Perc, Matjaz ; Szolnoki, Attila ; Helbing, Dirk
Image scoring sustains cooperation in the repeated two-player prisoner's dilemma through indirect reciprocity, even though defection is the uniquely dominant selfish behaviour in the one-shot game. Many real-world dilemma situations, however, firstly, take place in groups and, secondly, lack the necessary transparency to inform subjects reliably of others' individual past actions. [...]
arXiv:1507.00717.- 2015 - two-column p. - Published in : Sci. Rep. 5 (2015) 12145 External link: Preprint

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2015-07-03
07:53
Superdiffusion dominates intracellular particle motion in the supercrowded space of pathogenic Acanthamoeba castellanii / Reverey, J F ; Jeon, J -H ; Bao, H ; Leippe, M ; Metzler, R ; Selhuber-Unkel, C
Acanthamoebae are free-living protists and human pathogens, whose cellular functions and pathogenicity strongly depend on the transport of intracellular vesicles and granules through the cytosol. Using high-speed live cell imaging in combination with single-particle tracking analysis, we show here that the motion of endogenous intracellular particles in the size range from a few hundred nanometers to several micrometers in Acanthamoeba castellanii is strongly superdiffusive and influenced by cell locomotion, cytoskeletal elements, and myosin II. [...]
arXiv:1507.00716.- 2015 - 23 p. - Published in : Scientific Reports: 5 (2015) , pp. 11690 External link: Preprint

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2015-07-03
07:53
Attosecond XUV vortices from high-order harmonic generation / Hernández-García, C ; Picón, A ; Román, J San ; Plaja, L
We present a theoretical study of high-order harmonic generation (HHG) and propagation driven by an infrared field carrying orbital angular momentum (OAM). Our calculations unveil the following relevant phenomena: extreme-ultraviolet harmonic vortices are generated and survive to the propagation effects, vortices transport high-OAM multiple of the corresponding OAM of the driving field and, finally, the different harmonic vortices are emitted with similar divergence. [...]
arXiv:1507.00635.- 2015 - Published in : Phys. Rev. Lett. 111 (2013) 083602 External link: Preprint

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2015-07-03
07:53
Optically-dressed resonant Auger processes induced by high-intensity x rays / Picón, Antonio ; Ho, Phay J ; Doumy, Gilles ; Southworth, Stephen H
We have unveiled coherent multiphoton interferences originating from different quantum paths taken by the Auger electron induced by a high-intensity x-ray/XUV pulse under the presence of a strong optical field. These interferences give rise to a clear signature in the angle-resolved Auger electron spectrum: an asymmetry with respect to the energy of the Auger decay channel. [...]
arXiv:1507.00620.- 2015 - Published in : New J. Phys. 15 (2013) 083057 External link: Preprint

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2015-07-03
07:53
Reinventing Pocket Microscopy / Kamal, T ; He, X F ; Lee, W M
The key to the success of pocket microscopes stems from the convenience for anyone to magnify the fine details (tens of micrometres) of any object on-thespot. The capability with a portable microscope lets us surpass our limited vision and is commonly used in many areas of science, industry, education [...]
arXiv:1507.00589.- 2015 External link: Preprint

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2015-07-03
07:53
Magnetic Oscillation of Optical Phonon in ABA- and ABC-Stacked Trilayer Graphene / Cong, Chunxiao ; Jung, Jeil ; Cao, Bingchen ; Qiu, Caiyu ; Shen, Xiaonan ; Ferreira, Aires ; Adam, Shaffique ; Yu, Ting
We present a comparative measurement of the G-peak oscillations of phonon frequency, Raman intensity and linewidth in the Magneto-Raman scattering of optical E2g phonons in mechanically exfoliated ABA- and ABC-stacked trilayer graphene (TLG). Whereas in ABA-stacked TLG, we observe magnetophonon oscillations consistent with single-bilayer chiral band doublets, the features are flat for ABC-stacked TLG up to magnetic fields of 9 T. [...]
arXiv:1507.00534.- 2015 - 25 p. - Published in : Phys. Rev. B 91 (2015) 235403 External link: Preprint

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2015-07-03
07:53
Influence of the radiation absorbed by micro particles on the flame propagation and combustion regimes / Ivanov, M F ; Kiverin, A D ; Liberman, M A
Thermal radiation of the hot combustion products usually does not influence noticeably the flame propagating through gaseous mixture. the situation is changed drastically in the presence even small concentration of particles, which absorb radiation, transfer the heat to the surrounding unburned gaseous mixture by means of heat conduction, so that the gas phase temperature in front of the advancing flame lags that of the particles. [...]
arXiv:1507.00489; NORDITA-2015-78.- 2015 - 44 p. - Published in : Journal of Experimental and Theoretical (JETP) ZhETF, Vol. 148, No. 1, p. 190 (July 2015) External link: Preprint

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2015-07-03
07:53
Invariant Solutions to the Strominger System on Complex Lie Groups and Their Quotients / Fei, Teng ; Yau, Shing-Tung
Using canonical 1-parameter family of Hermitian connections on the tangent bundle, we provide invariant solutions to the Strominger system on complex Lie groups. Both flat and non-flat cases are discussed in detail..
arXiv:1407.7641.- 2015 - 11 p. - Published in : Commun. Math. Phys. 338(3), 1183-1195 (2015) , http://link.springer.com/article/10.1007%2Fs00220-015-2374-0 External link: Preprint

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2015-07-03
07:52
Can Family Gauge Bosons Be Visible by Terrestrial Experiments? / Koide, Yoshio
It is investigated whether observations of family gauge bosons by terrestrial experiments are possible or not. We propose an extended version of Sumino's family gauge boson model based on U(3) family symmetry. [...]
arXiv:1507.00457.- 2015 - 5 p. - Published in : JSPS Conf. Proc. 7 (2015) 010009 External link: Preprint

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2015-07-03
07:51
Status of measurement of KS -> pi e nu branching ratio and lepton charge asymmetry with the KLOE detector / Kamińska, D /collaboration for the KLOE-2
We present the current status of the analysis of about 1.7 billion KSKL pair events collected at DAFNE with the KLOE detector to determine the branching ratio of KS -> pi e nu decay and the lepton charge asymmetry. This sample is ~4 times larger in statistics than the one used in a previous KLOE analysis, allowing us to improve the accuracy of the measurement and of the related tests of CPT symmetry and Delta S = Delta Q rule..
arXiv:1507.00575.- 2015 - (6 p. External link: Preprint

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