Results 11 to 20 of about 138,321 (260)
Italian Research Facilities for Fundamental Physics
This Special Issue of Universe addresses the international community working at the Italian Research Facilities for Fundamental Physics, Italian labs and facilities playing a pivotal role in the core fields of this journal, such as gravitational waves ...
Marco Selvi, Francesco Terranova
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Biblioranking fundamental physics [PDF]
We propose measures of the impact of research that improve on existing ones such as counting of number of papers, citations and $h$-index. Since different papers and different fields have largely different average number of co-authors and of references we replace citations with individual citations, shared among co-authors. Next, we improve on citation
Alessandro Strumia, Riccardo Torre
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COSMOLOGICAL TERM AND FUNDAMENTAL PHYSICS [PDF]
A nonvanishing cosmological term in Einstein's equations implies a nonvanishing spacetime curvature even in the absence of any kind of matter. It would, in consequence, affect many of the underlying kinematic tenets of physical theory. The usual commutative spacetime translations of the Poincaré group would be replaced by the mixed conformal ...
Aldrovandi, R. +2 more
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A new technique for quick identification of defective region inside γ-ray detector [PDF]
The γ-ray detection efficiency of a detector decreases over time due to factors like radiation damage or an increase in the thickness of the inactive dead layer.
Das Biswajit +7 more
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The fundamental constants in physics [PDF]
18 pages, Invited lecture at the Landau Conference in Moscow ...
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Cosmological phase transition of spontaneous confinement
The dynamics of a cosmological (de)confinement phase transition is studied in nearly conformally invariant field theories, where confinement is predominantly spontaneously generated and associated with a light “dilaton” field.
Kaustubh Agashe +4 more
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Time in fundamental physics [PDF]
The first three sections of this article contain a broad brush summary of the profound changes in the notion of time in fundamental physics that were brought about by three revolutions: the foundations of mechanics distilled by Newton in his Principia, the discovery of special relativity by Einstein and its reformulation by Minkowski, and, finally, the
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A dedicated mission in low Earth orbit is proposed to test predictions of gravitational interaction theories and to directly measure the atmospheric density in a relevant altitude range, as well as to provide a metrological platform able to tie different
Roberto Peron, Enrico C. Lorenzini
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Classifying and constraining local four photon and four graviton S-matrices
We study the space of all kinematically allowed four photon and four graviton S-matrices, polynomial in scattering momenta. We demonstrate that this space is the permutation invariant sector of a module over the ring of polynomials of the Mandelstam ...
Subham Dutta Chowdhury +5 more
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Classification of all 3 particle S-matrices quadratic in photons or gravitons
We explicitly construct every kinematically allowed three particle graviton- graviton-P and photon-photon-P S-matrix in every dimension and for every choice of the little group representation of the massive particle P.
Soumangsu Chakraborty +5 more
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