Search results for "Poles"
showing 10 items of 64 documents
First search for dyons with the full MoEDAL trapping detector in 13 TeV pp collisions
2021
The MoEDAL trapping detector, consists of approximately 800 kg of aluminium volumes. It was exposed during Run-2 of the LHC program to 6.46 fb^-1 of 13 TeV proton-proton collisions at the LHCb interaction point. Evidence for dyons (particles with electric and magnetic charge) captured in the trapping detector was sought by passing the aluminium volumes comprising the detector through a SQUID magnetometer. The presence of a trapped dyon would be signalled by a persistent current induced in the SQUID magnetometer. On the basis of a Drell-Yan production model, we exclude dyons with a magnetic charge ranging up to 5 Dirac charges, and an electric charge up to 200 times the fundamental electric …
The Weber-Wheeler-Bonnor pulse and phase shifts in gravitational soliton interactions
1997
Abstract The WWB cylindrical pulse solution and the equivalent G 2 solution are analyzed particularly as the wave is reflected off the axis. Apparent phase shifts are revealed that are relevant to the discussion of whether or not phase shifts occur in gravitational soliton interactions.
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
2020
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these longlived particles (LLPs) can decay far from the interaction vertex of the primary proton–proton collision. Such LLP signatures are distinct from those of promptly decaying particles that are targeted by the majority of searches for new physics at the LHC, often requiring customized techniques to identify, for example, significantly displaced decay vertices, tracks with atypical properties, and short track segments. Given their non-standard nature, a comprehensive overview of LLP…
Poison frog social behaviour under global change: potential impacts and future challenges
2022
AbstractThe current and cascading effects of global change challenges the interactions both between animal individuals (i.e. social and sexual behaviour) and the environment they inhabit. Amphibians are an ecologically diverse class with a wide range of social and sexual behaviours, making them a compelling model to understand the potential adaptations of animals faced with the effects of human-induced rapid environmental changes (HIREC). Poison frogs (Dendrobatoidea) are a particularly interesting system, as they display diverse social behaviours that are shaped by conspecific and environmental interactions, thus offering a tractable system to investigate how closely related species may re…
Q7-branes and their coupling to IIB supergravity
2007
We show how, by making use of a new basis of the IIB supergravity axion-dilaton coset, SL(2,R)/SO(2), 7-branes that belong to different conjugacy classes of the duality group SL(2,R) naturally couple to IIB supergravity with appropriate source terms characterized by an SL(2,R) charge matrix Q. The conjugacy classes are determined by the value of the determinant of Q. The (p,q) 7-branes are the branes in the conjugacy class detQ = 0. The 7-branes in the conjugacy class detQ > 0 are labelled by three numbers (p,q,r) which parameterize the matrix Q and will be called Q7-branes. We construct the full bosonic Wess--Zumino term for the Q7-branes. In order to realize a gauge invariant coupling …
Historia urbana y mezzogiorno de Italia en la Edad Moderna: propuesta de un cuestionario
1998
The history of urbanization has barely been analyzed for the Mezzogiorno in Italy. This has partly been due to the persistence of stereotypes in Italian historiography, and partly due to the current definition of city functions. The article results from a meeting of specialists in Early Modern southern Italian history organized to undertake the rigorous and detailed study of the common features and the differences within the urban systems of the Mezzogiorno, in order to synthesize the specific character of urbanization in southern Italy over the long term. The author outlines the main areas under study and establishes its methodological foundations and first hypotheses.
Działalność Zagranicznego Komitetu Odbudowy Zamku Królewskiego w Warszawie (1967–1972)
2018
Zdecydowana większość emigracyjnych elit politycznych zajęła negatywne stanowisko w sprawie zbiórki pieniędzy na restytucję Zamku Królewskiego w Warszawie. W 1. połowie lat 70. XX w. na całym świecie działało jednak kilkadziesiąt komitetów i organizacji polonijnych wspierających ową inicjatywę, najwięcej w Stanach Zjednoczonych, Australii, we Francji i w Kanadzie. Chronologicznie pierwszy tego typu komitet zawiązał się jeszcze w czerwcu 1967 r. w Londynie, na kilka lat przed decyzją władz PRL w sprawie podniesienia z ruin byłej siedziby królewskiej. Przewodniczącym Zagranicznego Komitetu Odbudowy Zamku Królewskiego w Warszawie został Ignacy Czaykowski. W skład komitetu weszły osoby, które w…
Search for Magnetic Monopoles with the MoEDAL Forward Trapping Detector in 13 TeV Proton-Proton Collisions at the LHC
2017
MoEDAL is designed to identify new physics in the form of long-lived highly-ionising particles produced in high-energy LHC collisions. Its arrays of plastic nuclear-track detectors and aluminium trapping volumes provide two independent passive detection techniques. We present here the results of a first search for magnetic monopole production in 13 TeV proton-proton collisions using the trapping technique, extending a previous publication with 8 TeV data during LHC run-1. A total of 222 kg of MoEDAL trapping detector samples was exposed in the forward region and analysed by searching for induced persistent currents after passage through a superconducting magnetometer. Magnetic charges excee…
Vesti la Giubba! Indumentaria, apariencia y comhunicación en la entrada triunfal de Alfonso el Magnánimo en Nápoles (1443)
2021
espanolLa entrada triunfal de Alfonso el Magnanimo en Napoles el 26 de febrero de 1443 es uno de esos momentos de la Historia que quedaron marcados para la posteridad, no solo por la importancia del hecho en si, sino por todo el despliegue de mensajes en clave simbolica que en ese acto se llegaron a emitir. Analizado por diversos autores desde diferentes puntos de vista, se ha abordado bastante menos hasta la fecha una interpretacion de los codigos implicitos en la indumentaria de quienes participaron en la ceremonia, que aqui se ha tratado de realizar en base a las variadas fuentes que la describieron y de los nuevos conocimientos que la historia del vestido pone hoy a nuestra disposicion …
First Offline Results from the S3 Low-Energy Branch
2022
International audience; We present the first results obtained from the S3 Low-Energy Branch , the gas cell setup at SPIRAL2-GANIL, which will be installed behind the S3 spectrometer for atomic and nuclear spectroscopy studies of exotic nuclei. The installation is currently being commissioned offline, with the aim to establish optimum conditions for the operation of the radio frequency quadrupole ion guides, mass separation and ion bunching, providing high-efficiency and low-energy spatial spread for the isotopes of interest. Transmission and mass-resolving power measurements are presented for the different components of the S3-LEB setup. In addition, a single-longitudinal-mode, injection-lo…