Search results for "lh"
showing 10 items of 925 documents
L'institut d'histoire des sciences
2016
International audience; L'article retrace l'histoire de l'Institut d'histoire des sciences de 1932 à 2001. Sont successivement décrits: (1) l'épisode de fondation comme "Institut d'université" à l'Université de Paris; (2) les origines, les enjeux, le contexte de cette création (institutionnalisation de l'histoire des sciences à l'échelle internationale, et puissant mouvement en France en faveur de l'enseignement de l'histoire des sciences dans les lycées), de 1832 à 1932; (3) la période marquée par la direction d'Abel Rey, fondateur (1932-1940); la direction de Gaston Bachelard (1940-1955); la direction de Georges Canguilhem, marquée par un développement sans précédent de l'enseignement, ma…
Maintenance of GSH content in primary astrocyte cultures under oxidative stress conditions.
1993
Limits on neutral Higgs boson production in the forward region in $pp$ collisions at $\sqrt{s} = 7$ TeV
2013
Limits on the cross-section times branching fraction for neutral Higgs bosons, produced in p p collisions at root s = 7 TeV, and decaying to two tau leptons with pseudorapidities between 2.0 and 4.5, are presented. The result is based on a dataset, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector. Candidates are identified by reconstructing final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. A model independent upper limit at the 95% confidence level is set on a neutral Higgs boson cross-section times branching fraction. It varies from 8.6 pb for a Higgs boson mass of 90 GeV to 0.7 pb for a Higgs bos…
Guillaume de Toulouse et la politique carolingienne en Aquitaine d'après les sources narratives
2004
International audience
Histopathologic study on the effect of Tenoxicam and its diluent in the venous endothelium, in rabbits
2000
Made available in DSpace on 2021-07-14T10:23:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-06 Com o objetivo de avaliar pela histopatologia o efeito do tenoxicam e do seu diluente no endotélio venoso, foram utilizados 48 coelhos (Oryctolagus cuniculus), rancos, da linhagem Nova Zelândia, machos, com idade acima de 10 semanas, com peso variando entre 2350 e 3500 gramas, divididos em dois grupos, denominados Experimento e Controle, que foram observados nos tempos de 6, 12 e 24 horas. Administrou-se nas venae auriculares dextra e sinistra, diluente ou tenoxicam/diluente no Grupo Experimento e cloreto de sódio a 0,9% no Grupo Controle. Não se observou diferença estatisticamente sign…
Brief an Garlieb H. Merkel
1798
Ms. 930a, Nr. 10, Bl. 26r-28v Schmidt-Phiseldeck, Konrad von. Brief an Garlieb H. Merkel, Kopenhagen, am 6. März 1798 Autora rokraksts / Autograph, vācu un latīņu val. / Deutsch und Latein [6] lpp. / S. Attēlu numuri / Bildnummern: 930a-010-1 – 930a-010-6 Der Verfasser äußert zum Beginn seines Briefes erneut sein Bedauern über die räumliche Trennung und wünscht sich, nach Italien zu reisen. Weimar, wo Merkel zum gegebenen Zeitpunkt wahrscheinlich weilte, glorifiziert Schmidt-Phiseldeck mit der Bezeichnung als „Weimar-Athen“. Gleichzeitig drückt der Verfasser seine Enttäuschung über die Politik Frankreichs bezüglich der Schweiz aus, erkennt aber in der Neutralität seiner neuen Heimat Dänemar…
Forward $J/\psi$ and very backward jet inclusive production at the LHC
2018
In the spirit of Mueller-Navelet dijet production, we propose and study the inclusive production of a forward $J/\psi$ and a very backward jet at the LHC as an observable to reveal high-energy resummation effects \`a la BFKL. We obtain several predictions, which are based on the various mechanisms discussed in the literature to describe the production of the $J/\psi$, namely, NRQCD singlet and octet contributions, and the color evaporation model.
Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC
2017
The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV and p-Pb collisions at $\sqrt{s_{\rm NN}}=$ 5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region $|��|<0.8$ as a function of centrality and transverse momentum $p_{\rm T}$ using two observables, to search for evidence of $p_{\rm T}$-dependent flow vector fluctuations. For Pb-Pb collisions at 2.76 TeV, the measurements indicate that $p_{\rm T}$-dependent fluctuations are only present for the second order flow vector. Similar results hav…
Physics beyond colliders at CERN: beyond the Standard Model working group report
2019
The Physics Beyond Colliders initiative is an exploratory study aimed at exploiting the full scientific potential of the CERN's accelerator complex and scientific infrastructures through projects complementary to the LHC and other possible future colliders. These projects will target fundamental physics questions in modern particle physics. This document presents the status of the proposals presented in the framework of the Beyond Standard Model physics working group, and explore their physics reach and the impact that CERN could have in the next 10–20 years on the international landscape.
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…