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CERN Accelerating science

CERN Document Server Sök i 41 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.60 sekunder. 
1.
Science with the Einstein Telescope: a comparison of different designs / Branchesi, Marica (GSSI, Aquila ; Gran Sasso) ; Maggiore, Michele (Geneva U., Dept. Theor. Phys. ; Geneva U.) ; Alonso, David (Oxford U.) ; Badger, Charles (King's Coll. London) ; Banerjee, Biswajit (GSSI, Aquila ; Gran Sasso) ; Beirnaert, Freija (Gent U.) ; Belgacem, Enis (Geneva U.) ; Bhagwat, Swetha (Rome U. ; Birmingham U.) ; Boileau, Guillaume (U. Antwerp (main) ; ARTEMIS, Nice) ; Borhanian, Ssohrab (Jena U., TPI) et al.
The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three nested detectors with 10 km arms, where in each arm there is a `xylophone' configuration made of an interferometer tuned toward high frequencies, and an interferometer tuned toward low frequencies and working at cryogenic temperature. Here, we examine the scientific perspectives under possible variations of this reference design. [...]
arXiv:2303.15923; ET-0084A-23.- 2023-07-28 - 197 p. - Published in : JCAP 2307 (2023) 068 Fulltext: document - PDF; 2303.15923 - PDF;
2.
Fundamental physics and cosmology with the Einstein Telescope / Maggiore, Michele (speaker) (Universite de Geneve (CH))
The Einstein Telescope is a proposed  third-generation gravitational wave detector, to be build in Europe in the next decade. Its sensitivity will allow us to explore the depths on the Universe with gravitational waves. [...]
2022 - 4215. Theory Colloquia External link: Event details In : Fundamental physics and cosmology with the Einstein Telescope
3.
Cosmology with the Laser Interferometer Space Antenna / LISA Cosmology Working Group Collaboration
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and particle physics, from the MeV to the Planck scale. However, the range of potential cosmological applications of gravitational wave observations extends well beyond these two objectives. [...]
arXiv:2204.05434; LISA CosWG-22-03; FERMILAB-PUB-22-349-SCD.- 2023-08-28 - 176 p. - Published in : Living Rev. Relativ. 26 (2023) 5 Fulltext: jt - PDF; 2204.05434 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
4.
New horizons for fundamental physics with LISA / LISA Collaboration
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of GWs can be expected to provide key input. [...]
arXiv:2205.01597.- 2022-06-30 - 116 p. - Published in : Living Rev. Relativ. 25 (2022) 4 Fulltext: 2205.01597 - PDF; document - PDF;
5.
Closing Lecture: The first direct detections of gravitational waves / Maggiore, Michele (speaker) (Universite de Geneve (CH))
2016 - 4949. Summer Student Lecture Programme Course, 2016 External link: Event details In : Closing Lecture: The first direct detections of gravitational waves
6.
Conformal symmetry and nonlinear extensions of nonlocal gravity / Cusin, Giulia (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Foffa, Stefano (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Maggiore, Michele (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Mancarella, Michele (CERN ; IPhT, Saclay ; Orsay)
We study two nonlinear extensions of the nonlocal $R\,\Box^{-2}R$ gravity theory. We extend this theory in two different ways suggested by conformal symmetry, either replacing $\Box^{-2}$ with $(-\Box + R/6)^{-2}$, which is the operator that enters the action for a conformally-coupled scalar field, or replacing $\Box^{-2}$ with the inverse of the Paneitz operator, which is a four-derivative operator that enters in the effective action induced by the conformal anomaly. [...]
arXiv:1602.01078.- 2016-04-19 - 16 p. - Published in : Phys. Rev. D 93 (2016) 083008 Fulltext: 10.1103_PhysRevD.93.083008 - PDF; arXiv:1602.01078 - PDF; External link: Preprint
7.
Non-local gravity with a Weyl-square term / Cusin, Giulia (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Foffa, Stefano (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Maggiore, Michele (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Mancarella, Michele (IPhT, Saclay ; Orsay ; CERN)
Recent work has shown that modifications of General Relativity based on the addition of a non-local term $R\,\Box^{-2}R$ produce a dynamical model of dark energy, which is cosmologically viable both at the background level and at the level of cosmological perturbations. We explore a more general class of models based on the addition of terms proportional to $R_{\mu\nu}\,\Box^{-2}R^{\mu\nu}$ and $C_{\mu\nu\rho\sigma}\, \Box^{-2}C^{\mu\nu\rho\sigma}$, where $C_{\mu\nu\rho\sigma}$ is the Weyl tensor. [...]
arXiv:1512.06373.- 2016-02-08 - 15 p. - Published in : Phys. Rev. D 93 (2016) 043006 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.93.043006 - PDF; arXiv:1512.06373 - PDF; External link: Preprint
8.
Conditional Probabilities in the Excursion Set Theory. Generic Barriers and non-Gaussian Initial Conditions / De Simone, Andrea ; Maggiore, Michele ; Riotto, Antonio
The excursion set theory, where density perturbations evolve stochastically with the smoothing scale, provides a method for computing the dark matter halo mass function. The computation of the mass function is mapped into the so-called first-passage time problem in the presence of a moving barrier. [...]
arXiv:1102.0046; CERN-PH-TH-2010-323; CERN-PH-TH-2010-323.- 2011 - 19 p. - Published in : Mon. Not. R. Astron. Soc. 418 (2011) 2403-2421 Fulltext: PDF; External link: Preprint
9.
The Bias and Mass Function of Dark Matter Halos in Non-Markovian Extension of the Excursion Set Theory / Ma, Chung-Pei ; Maggiore, Michele ; Riotto, Antonio ; Zhang, Jun
The excursion set theory based on spherical or ellipsoidal gravitational collapse provides an elegant analytic framework for calculating the mass function and the large-scale bias of dark matter haloes. This theory assumes that the perturbed density field evolves stochastically with the smoothing scale and exhibits Markovian random walks in the presence of a density barrier. [...]
arXiv:1007.4201; CERN-PH-TH-2010-165; CERN-PH-TH-2010-165.- 2011 - 10 p. - Published in : Mon. Not. R. Astron. Soc. 411 (2011) 2644-2652 Fulltext: PDF; External link: Preprint
10.
Excursion Set Theory for generic moving barriers and non-Gaussian initial conditions / De Simone, Andrea ; Maggiore, Michele ; Riotto, Antonio
Excursion set theory, where density perturbations evolve stochastically with the smoothing scale, provides a method for computing the mass function of cosmological structures like dark matter halos, sheets and filaments. The computation of these mass functions is mapped into the so-called first-passage time problem in the presence of a moving barrier. [...]
arXiv:1007.1903; CERN-PH-TH-2010-159; MIT-CTP-4164; CERN-PH-TH-2010-159; MIT-CTP-4164.- 2011 - 17 p. - Published in : Mon. Not. R. Astron. Soc. 412 (2011) 2587-2602 Fulltext: PDF; External link: Preprint

CERN Document Server : Sök i 41 journaler efter:   1 - 10nästaslut  gå till journal:
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