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News & Highlighted Publications


A new leading contribution to neutrinoless double-beta decay

V. Cirigliano, W. Dekens, J. de Vries, M.L. Graesser, E. Mereghetti, S. Pastore, and U. van Kolck, Phys. Rev. Lett. 120 (2018) 202001

V. Cirigliano, W. Dekens, J. de Vries, M.L. Graesser, E. Mereghetti, S. Pastore, and U. van Kolck, Phys. Rev. Lett. 120 (2018) 202001 One of the most important advancements in modern particle physics was the observation of neutrino oscillations and the inference that neutrinos have mass. However, the origin of neutrino masses remains a mystery. They can arise from an interaction with the Higgs field that violates lepton number, makes neutrinos Majorana particles, and potentially (...)

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IPN Orsay collaborates on first MRTOF-MS experiments at RIKEN-RIBF

Mass Measurements IPN collaborates on first direct mass measurements around Z=100 with a Multireflection Time of Flight Mass Spectrograph (MRTOF-MS) at RIKEN-RIBF One of the most important features of superheavy nuceli (SHE) is the appearance of an "island of stability" where shape and shell deformations are expected to counter-balance Coulomb repulsion and lead to unusually long-lived nuclei. The island of stability and its boundaries are unexplored territory, and much effort is (...)

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

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