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IPN Orsay delivered the klystrons for the FAIR project at GSI

As part of the FAIR project, a proton linac (pLinac) is planned to accelerate protons up to 70 MeV. The duration of the pulse beam is 70 μs and the current during the pulse is 70 mA. The linac will consist of an RFQ and 6 cavities Crossed-bar-H (CH) accelerating the beam to its final energy. The RF power will be provided by 7 klystrons of 3 MW at peak power during 200 μs at a repetition rate of 4 Hz. Since 2010, the IPNO has been responsible for the pLinac’s RF power . Collaboration with (...)

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First Exclusive Measurement of Deeply Virtual Compton Scattering off 4He: Toward the 3D Tomography of Nuclei

Phys. Rev. Lett. 119, 202004 (2017)

M. Hattawy et al. (CLAS Collaboration), Phys. Rev. Lett. 119, 202004 (2017) A wealth of information on the structure of matter lies in the correlations between the momentum and spatial distributions of the fundamental constituents of matter : quarks and gluons. These correlations are accessible via the study of generalized parton distributions (GPDs), which we probe with hard exclusive scattering reactions. Deeply-virtual Compton scattering (DVCS) reaction is the preferred probe of GPDs (...)

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Comprendre le processus de quasi-fission : Une étape essentielle pour la synthèse de nouveaux éléments super-lourds

PHYS. REV. LETT. 119, 222502 (2017)

Au cours d’une expérience réalisée auprès de l’accélérateur cryogénique de l’Australian National University (Canberra, Australie), une collaboration franco-australienne1 a pour la première fois identifié simultanément en masse et en numéro atomique Z jusqu’au plutonium, les fragments créés dans des réactions de quasi-fission. La quasi-fission est le mécanisme dominant dans les collisions très dissipatives entre noyaux très lourds. Elle est en compétition avec le mécanisme de fusion utilisé pour synthétiser de (...)

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PHYS. REV. LETT. 119, 223002 (2017)

"One of the most important properties of nuclei is saturation : although nuclear interactions are attractive overall, the growth in binding energy tapers off as the number of nucleons in the nucleus increases. As a consequence, heavy nuclei have some properties of a liquid drop. The simplest nucleus --- the deuteron --- has a small binding energy, which has led to a recent suggestion by Bira van Kolck and collaborators that nuclei can be described in a systematic expansion around the (...)

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IPN Orsay involved in the first Spectroscopy of 79Cu held with success at Riken

Phys. Rev. Lett. 119, 192501 (2017

The 78Ni nucleus, with 28 protons and 50 neutrons, is a cornerstone for nuclear structure as it is one of the most exotic nuclei with two magic numbers. The study of its proton-neighbour 79Cu allows to understand the movement of a single proton around 78Ni and it is therefore a powerful tool for probing the magic character of 78Ni. We recently performed the first spectroscopy of 79Cu at Riken and the results were published in Physical Review Letters. L. Olivier et al. Phys. Rev. Lett. (...)

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Institut de Physique Nucléaire Orsay - 15 rue Georges CLEMENCEAU - 91406 ORSAY (FRANCE)
UMR 8608 - CNRS/IN2P3

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