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Elias Khan, Laureate of the CNRS Silver Medal 2016

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Elias Khan, Professor at the Université Paris-Sud, is a nuclear physicist of wide international reputation. He is outstanding for his rare approach to research from multiple angles : experiment, theory, and applications. As an experimentalist, he was able to tackle original (...)

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IPN Orsay and the ESS French Partner days

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On February 4th, the laboratory visit part of the ESS French Partner event exhibited the impressive facilities at Institut de Physique Nucléaire d’Orsay (IPNO), Laboratoire Léon Brillouin (LLB) and IRFU Saclay the many participants from French institutes and industry. The tour of the laboratories (...)

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Scientific news

ALTO reveals shape coexistence close to 78Ni

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The observation of a deformed ground state in 32Mg (N = 20) and the existence of shape coexistence in 44S (N = 28), nuclei with magic numbers of neutrons and thus expected spherical, has deeply revolutionized the understanding of the structure of neutron-rich nuclei. It highlights the (...)

A. Gottardo, D. Verney, C. Delafosse, F. Ibrahim, B. Roussière, C. Sotty, S. Roccia, C. Andreoiu, C. Costache, M.-C. Delattre, I. Deloncle, A. Etilé, S. Franchoo, C. Gaulard, J. Guillot, M. Lebois, M. MacCormick, N. Marginean, R. Marginean, I. Matea, C. Mihai, I. Mitu, L. Olivier, C. Portail, L. Qi, L. Stan, D. Testov, J. Wilson, and D. T. Yordanov

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Publications

From effective field theories to effective density functionals in and beyond the mean field

Since the 1975 Nobel Prize in Physics, nuclear theory has evolved along two main directions. On the one hand, the energy–density functional (EDF) theory was established, which presently encompasses (by enlarging the EDF framework) all the mean-field and beyond-mean-field theories based on energy functionals produced by effective phenomenological interactions. Highly sophisticated structure and reaction models are currently available for the treatment of (...)

M. Grasso, D. Lacroix, U. van Kolck

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Molecular bremsstrahlung radiation at GHz frequencies in air

A detection technique for ultra-high-energy cosmic rays, complementary to the fluorescence technique, would be the use of the molecular Bremstrahlung radiation emitted by low-energy ionization electrons left after the passage of the showers in the atmosphere. In this article, a detailed estimate of the spectral intensity of photons at ground level originating from this radiation is presented. The spectral intensity expected from the passage of the high-energy electrons of the cascade (...)

O. Deligny

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Strong three-meson couplings of J/psi and eta_c

We discuss the strong couplings g_PPV and g_VVP for vector (V) and pseudoscalar (P) mesons, at least one of which is a charmonium state J/psi or eta_c. The strong couplings are obtained as residues at the poles of suitable form factors, calculated in a broad range of momentum transfers using a dispersion formulation of the relativistic constituent quark model. The form factors obtained in this approach satisfy all constraints known for these quantities in the heavy-quark limit. Our results (...)

H. Sazdjian

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The 3He long-counter TETRA at the ALTO ISOL facility

A new β-decay station (BEDO) has been installed behind the PARRNe mass separator operated on-line at the electron-driven ALTO ISOL facility. The station is equipped with a movable tape collector allowing the creation of the radioactive sources of interest at the very center of a modular detection system. The mechanical structure was designed to host various assemblies of detectors in compact geometry. We report here the first on-line use of this system equipped with the 4π 3He neutron counter (...)

D. Testov, D. Verney, B. Roussière, J. Bettane, S. Franchoo, F. Ibrahim, R. Li, I. Matea, I. Stefan, D. Suzuki, J. Wilson

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Nuclear excitations as coupled one and two random-phase-approximation modes

We present an extension of the random-phase approximation (RPA) where the RPA phonons are used as building blocks to construct the excited states. In our model, that we call double RPA (DRPA), we include up to two RPA phonons. This is an approximate and simplified way, with respect to the full second random-phase approximation (SRPA), to extend the RPA by including two-particle–two-hole configurations. Some limitations of the standard SRPA model, related to the violation of the (...)

M. Grasso

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60 ans IPN Orsay/LAL

To be noted

Joliot-Curie School

25-30 September 2016

This edition entitled "Origin of nuclei in the Universe" will cover the many facets of nuclear (...)


Seminars

Transverse momentum broadening and Sudakov effects in hard nuclear collisions

Al Mueller

Columbia University, New York, USA

le 02/06/2016 à 11:00

Ecole Polytechnique, CPhT, Salle des conférences

Plutonium(V) chemistry in low acid and neutral complexing media

Pr Alexei Bessonov

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow

le 17/06/2016 à 10:30

IPN Orsay, salle A015, bâtiment 100

Superconductor-insulator transition far from equilibrium

Dan Shahar

Weizmann Institute of Science

le 17/06/2016 à 14:00

IPN Orsay, salle 018 (E - Bibliothèque), bâtiment 100


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Works & Phd

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IPN

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

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