Results 21 to 30 of about 38,841 (211)

A fresh view on string orbifolds

open access: yesJournal of High Energy Physics, 2023
In quantum field theory, an orbifold is a way to obtain a new theory from an old one by gauging a finite global symmetry. This definition of orbifold does not make sense for quantum gravity theories, that admit (conjecturally) no global symmetries.
Stefano Giaccari, Roberto Volpato
doaj   +1 more source

NGC1818 unveils the origin of the extended main-sequence turn-off in young Magellanic Clouds clusters

open access: yesNature Communications, 2022
The nature of young star clusters in the Magellanic Clouds is debated. Here, the authors show an alternative approach that exploits data to exclude the presence of age differences greater than a few million years among cluster stars in a very young ...
Giacomo Cordoni   +10 more
doaj   +1 more source

Binary Black Hole Spins: Model Selection with GWTC-3

open access: yesUniverse, 2023
The origin of the spins of stellar-mass black holes is still controversial, and angular momentum transport inside massive stars is one of the main sources of uncertainty. Here, we apply hierarchical Bayesian inference to derive constraints on spin models
Carole Périgois   +4 more
doaj   +1 more source

Memoria e ripetizione come strategie argomentative nelle testimonianze di Galileo Galilei al Santo Offizio

open access: yesCaligrama: Revista de Estudos Românicos, 2011
Resumo: O presente trabalho pretende focalizar o percurso discursivo dos depoimentos do astrônomo italiano Galileu Galilei, no julgamento a que foi submetido em Roma, pela Inquisição, em 1633. Visa-se apresentar e analisar alguns dos recursos retóricos e
Patrizia Collina Bastianetto
doaj   +1 more source

Triggerless data acquisition pipeline for Machine Learning based statistical anomaly detection [PDF]

open access: yesEPJ Web of Conferences
This work describes an online processing pipeline designed to identify anomalies in a continuous stream of data collected without external triggers from a particle detector.
Grosso Gaia   +6 more
doaj   +1 more source

Covariant formulation of BPS black holes and the scalar weak gravity conjecture

open access: yesJournal of High Energy Physics, 2020
In this note we analyze the BPS black hole equations in extended supergravities and we find two interesting relations involving first and second derivatives of combinations of the central charges.
Gianguido Dall’Agata, Matteo Morittu
doaj   +1 more source

From linear to non-linear SUSY and back again

open access: yesJournal of High Energy Physics, 2017
We show that couplings of the goldstino field, appearing when global supersymmetry is broken, can always be described in superspace by means of a nilpotent chiral superfield X, satisfying X 2 = 0.
N. Cribiori, G. Dall’Agata, F. Farakos
doaj   +1 more source

Theater - Galileo Galilei, ca. 2002

open access: yes, 2014
Song lyrics and drafts of scenes for Galileo Galilei, a collaboration between Weinstein and Philip Glass.http://deepblue.lib.umich.edu/bitstream/2027.42/109206/2/Galileo-Galilei_ca-2002.ziphttp://deepblue.lib.umich.edu/bitstream/2027.42/109206/1/Galileo ...
Weinstein, Arnold
core   +4 more sources

A Spectral Unmixing Model for the Integration of Multi-Sensor Imagery: A Tool to Generate Consistent Time Series Data

open access: yesRemote Sensing, 2015
The Sentinel missions have been designed to support the operational services of the Copernicus program, ensuring long-term availability of data for a wide range of spectral, spatial and temporal resolutions.
Georgia Doxani   +4 more
doaj   +1 more source

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