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4881por Bezrukov, Fedor“…I will discuss the recent LHC and Planck results, which are completely compatible with the Standard Model of particle physics, and the standard cosmological model ($\Lambda$CDM), respectively. It turns out that the extension of the Standard Model is, of course, required, but can be very minimal. …”
Publicado 2013
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4882por Varvell, K E“…During the 1990s, the CHORUS and NOMAD experiments were performed in order to search for neutrino oscillations governed by neutrino masses in the range of cosmological interest. In this presentation, the two experiments are described, and the current status of their oscillation searches reviewed. (15 refs).…”
Publicado 2000
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4883“…Motivated by the interest in models of the early universe where statistical isotropy is broken and can be revealed in cosmological observations, we consider an SU(2) theory of gauge interactions in a single scalar field inflationary scenario. …”
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4884“…We point out that theories of cosmological acceleration which have equation of state, w, such that 1+w is small but positive may still secretly violate the null energy condition. …”
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4885“…We present one of the simplest possible modifications of axion paradigm, which explains the results of PVLAS experiment, while avoiding all the astrophysical and cosmological restrictions. We also mention other possible models that possess similar effects.…”
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4886por Berger, Beverly K.“…Examples of numerical investigations into the formation of naked singularities, critical behavior in collapse, passage through the Cauchy horizon, chaos of the Mixmaster singularity, and singularities in spatially inhomogeneous cosmologies are discussed.…”
Publicado 1998
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4887por Luty, Markus A.“…All supersymmetric vacua are at infinite field values, and cosmological bounds on false vacuum decay are easily satisfied. …”
Publicado 1997
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4888“…The hypothetical detection of the photons radiated via this mechanism would provide an indirect way of verifying the cosmological relevance of axions.…”
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4889“…By requiring the consistency of the effective field theory up to scales of 10^15 GeV and after applying cosmological constraints, we arrive at a finite set of possibilities that we analyze in detail. …”
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4890por Laveder, Marco“…The experiment, where the search for oscillation is based on kinematical criteria, will reach the sensitivity dm2 > 0.7 eV2 for maximal mixing and dm2 > 50 eV2 for mixing angles sin2 2\theta > 3.8E-4 after 2 years of running, making possible to explore a region of cosmological interest. Preliminary measurements are presented from the 1994 and 1995 data samples.…”
Publicado 1996
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4891“…They can be stabilized by interactions with the cosmological plasma, but will decay once the plasma falls out of equilibrium, emitting a substantial fraction of non-thermal photons. …”
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4892“…This scenario is totally free from the cosmological gravitino problem, and independent of the detailed history of the Universe as long as it satisfies quite weak constraints.…”
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4893“…We evaluate the baryon asymmetry so produced in light of the constraints that the COBE observations put on inflationary cosmologies, finding it comfortably consistent with observation.…”
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4894“…We attempt to fit cosmological data using f(R) modified Lagrangians containing inverse powers of the Ricci scalar varied with respect to the metric. …”
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4895“…In this paper we discuss some general aspects of the gravitational wave background arising from post-inflationary short-lasting cosmological events such as phase transitions. We concentrate on the physics which determines the shape and the peak frequency of the gravitational wave spectrum. …”
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4896“…Previously considered cosmological and black hole solutions are recovered as particular examples.…”
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4897por Bierwagen, Katharina“…Cosmological and astrophysical observations indicate the presence of Dark Matter in the universe which cannot be explained by the Standard Model. …”
Publicado 2018
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4898por Bakas, Ionnis“…We examine the properties and symmetries of the lowest order effective theory of 4-dim string backgrounds with axion and dilaton fields and zero cosmological constant. The dimensional reduction yields an O(2,2) current group of transformations in the presence of two commuting Killing symmetries. …”
Publicado 1994
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4899“…The current consists of charged vector bosons. Cosmological consequences are briefly discussed.…”
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4900“…The evolution of strongly interacting matter during the cosmological confinement transition is reviewed. Despite of many proposed relics no specific signal from the rearrangement of quarks and gluons into hadrons has been identified by observations. …”
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