Search results for "background [gravitational radiation]"
showing 10 items of 152 documents
Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects
2018
The ordering of the neutrino masses is a crucial input for a deep understanding of flavor physics, and its determination may provide the key to establish the relationship among the lepton masses and mixings and their analogous properties in the quark sector. The extraction of the neutrino mass ordering is a data-driven field expected to evolve very rapidly in the next decade. In this review, we both analyze the present status and describe the physics of subsequent prospects. Firstly, the different current available tools to measure the neutrino mass ordering are described. Namely, reactor, long-baseline (accelerator and atmospheric) neutrino beams, laboratory searches for beta and neutrinol…
Pre-convenzioni: un frammento dello Sfondo
2014
In this paper I argue that there exist conventions of a peculiar sort, which are neither norms nor regularities of behaviour, partaking of both. I proceed as follows. After a sketchy analysis of the meaning of ‘convention’, I give some examples of the kind of phenomena I have in mind: bodily skills, know-how, taste and style, habitus (P. Bourdieu), «disciplines» (M. Foucault). Then I group some arguments supporting my claim: (i) considerations about the identity conditions of precedents (D. Lewis) and about the projectibility of predicates in inductive inference generally (N. Goodman); (ii) thoughts about rule-following (L. Wittgenstein); (iii) an examination of some of J. R. Searle’s ideas…
Pre-conventions. A fragment of the Background
2016
In this paper I argue that there exist conventions of a peculiar sort which are neither norms nor regularities of behaviour, partaking of both. I proceed as follows. After a brief analysis of the meaning of ‘convention’, I give some examples of the kind of phenomena I have in mind: bodily skills, know-how, taste and style, habitus (P. Bourdieu), “disciplines” (M. Foucault). Then I group some arguments supporting my claim: (i) considerations about the identity conditions of precedents (D. Lewis) and about the projectibility of predicates in inductive inference generally (N. Goodman); (ii) thoughts about rule-following (L. Wittgenstein); (iii) an examination of some of J. R. Searle’s ideas ab…
Preconvenciones: un fragmento del Trasfondo
2016
Abstract, In this paper I argue that there exist conventions of a peculiar sort, which are neither norms nor regularities of behaviour, partaking of both. I proceed as follows. After a sketchy analysis of the meaning of ‘convention’, I give some examples of the kind of phenomena I have in mind: bodily skills, know-how, taste and style, habitus (P. Bourdieu), “disciplines” (M. Foucault). Then I group some arguments supporting my claim: (i) considerations about the identity conditions of precedents (D. Lewis) and about the projectibility of predicates in inductive inference generally (N. Goodman); (ii) thoughts about rule-following (L. Wittgenstein); (iii) an examination of some of J. R. Sear…
Ritrattare la metafisica?
2016
L'articolo discute alcune interpretazioni del libro di L. Samonà, Ritrattazioni della metafisica, mettendo in rilievo lo sfondo ontologico della fenomenologia ermeneutica e il carattere dialettico interno alla dimostrazione per via di confutazione del principio inconcusso
Reduction of stored-particle background by a magnetic pulse method at the KATRIN experiment
2018
Arenz, M., et al. “Reduction of Stored-Particle Background by a Magnetic Pulse Method at the KATRIN Experiment.” The European Physical Journal C, vol. 78, no. 9, Sept. 2018. © 2018 The Authors
Modelling and Simulation of Ego-Noise of Unmanned Aerial Vehicles
2020
In this paper, we develop a simulation model for the ego-noise of unmanned aerial vehicles (UAVs). The ego-noise is composed of spike noise and background noise. The spike noise is modelled by a finite sum of sinusoids, while the background noise is modelled by a coloured Gaussian stationary process. The main property of our model is that it only depends on physical characteristics of the UAV and it does not need real-time audio inputs to be developed. This model is very useful for training novel noise cancelling algorithms and for evaluating their performance. To validate the proposed model, we compare the statistical properties of the ego-noise simulated using our model with actual ego-no…
Correcting for non-ignorable missingness in smoking trends
2015
Data missing not at random (MNAR) is a major challenge in survey sampling. We propose an approach based on registry data to deal with non-ignorable missingness in health examination surveys. The approach relies on follow-up data available from administrative registers several years after the survey. For illustration we use data on smoking prevalence in Finnish National FINRISK study conducted in 1972-1997. The data consist of measured survey information including missingness indicators, register-based background information and register-based time-to-disease survival data. The parameters of missingness mechanism are estimable with these data although the original survey data are MNAR. The u…
Revisiting cosmological bounds on sterile neutrinos
2014
We employ state-of-the art cosmological observables including supernova surveys and BAO information to provide constraints on the mass and mixing angle of a non-resonantly produced sterile neutrino species, showing that cosmology can effectively rule out sterile neutrinos which decay between BBN and the present day. The decoupling of an additional heavy neutrino species can modify the time dependence of the Universe's expansion between BBN and recombination and, in extreme cases, lead to an additional matter-dominated period; while this could naively lead to a younger Universe with a larger Hubble parameter, it could later be compensated by the extra radiation expected in the form of neutri…
Cosmological origin of anomalous radio background
2012
The ARCADE 2 collaboration has reported a significant excess in the isotropic radio background, whose homogeneity cannot be reconciled with clustered sources. This suggests a cosmological origin prior to structure formation. We investigate several potential mechanisms and show that injection of relativistic electrons through late decays of a metastable particle can give rise to the observed excess radio spectrum through synchrotron emission. However, constraints from the cosmic microwave background (CMB) anisotropy, on injection of charged particles and on the primordial magnetic field, present a challenge. The simplest scenario is with a greater than or similar to 9 GeV particle decaying i…