Results 11 to 20 of about 20,410 (109)
Observationally Determining the Properties of Dark Matter [PDF]
, 1998 Determining the properties of the dark components of the universe remains one of the outstanding challenges in cosmology. We explore how upcoming CMB anisotropy measurements, galaxy power spectrum data, and supernova (SN) distance measurements can ...
A. G. Riess +39 more
core +2 more sources
The effects of a revised $^7$Be e$^-$-capture rate on solar neutrino fluxes [PDF]
, 2019 The electron-capture rate on $^7$Be is the main production channel for $^7$Li in several astrophysical environments. Theoretical evaluations have to account for not only the nuclear interaction, but also the processes in the plasma where $^7$Be ions and ...
Busso, M. +7 more
core +2 more sources
Neutrino Velocity and the Variability of Fundamental Constants
, 2012 Neutrino speed experiments could be viewed not only as tests of Lorentz invariance but also as measurements of limiting propagation speed for all standard model species below certain depth where no direct metrological information is available. The latter
Flambaum, Victor, Pospelov, Maxim
core +1 more source
Solar Neutrinos: Status and Prospects
, 2012 We describe the current status of solar neutrino measurements and of the theory -- both neutrino physics and solar astrophysics -- employed in interpreting measurements.
Aldo M. Serenelli +9 more
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Superluminal Neutrinos in the Minimal Standard Model Extension
, 2012 Most recently, the measurement of the neutrino velocity with the OPERA detector in the CNGS beam shows unexpected indication, that the muon neutrino velocity, $v_{\nu}$, exceeds the velocity of light in the vacuum, $c$, which is obviously in ...
Ma, Bo-Qiang, Qin, Nan
core +1 more source
Clock-transport synchronisation for neutrino time-of-flight measurements
, 2012 A method to synchronise, at the sub-nanosecond level, clocks used for neutrino time-of-flight measurements is proposed. Clocks situated near the neutrino source and target are compared with a moveable clock that is transported between them.
Field, J. H.
core +1 more source
Astronomische Nachrichten, EarlyView.ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez +2 more
wiley +1 more source
Planetary influence on the young Sun's evolution: the solar neutrino probe
, 2013 Recent observations of solar twin stars with planetary systems like the Sun, have uncovered that these present a peculiar surface chemical composition. This is believed to be related to the formation of earth-like planets.
Lopes, Ilidio, Silk, Joseph
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Two Micron‐Size Dark Dimensions
Fortschritte der Physik, EarlyView.Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui +2 more
wiley +1 more source
Neutrino Anisotropies after Planck
, 2013 We present new constraints on the rest-frame sound speed, c_{eff}^2, and the viscosity parameter, c_{vis}^2, of the Cosmic Neutrino Background from the recent measurements of the Cosmic Microwave Background anisotropies provided by the Planck satellite ...
Di Valentino, Eleonora +2 more
core +1 more source