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SPhN – Service de Physique Nucléaire

Our goal :

to understand all states of strongly interacting matter (partonic, hadronic, nuclear)

and to discover new ones,

while active in key applications of our science.

AGATAALICE GEELCLAS12 COMPASSVAMOS

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Research themes at SPhN

Nuclear

structu

re

Nucleo

n stru

cture

with other divisions of Irfu: SEDI, SIS, SACM, SENAC, SPP

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SPhN research staff and organization

- 41 physicists active in 7 research groups- 1 physicist on leave at IPNO - 2 physicists as directors- 2 (retired but active !) senior advisors- 15 post-docs- 14 PhD students

CSTS (Scientific and Technical Committee) meets once or twice a year :

- 6 external, appointed members,- 6 internal, elected members,- Head of Irfu and Head of SPhN.

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SPhN organization: 4 research themes / 7 groups

M. GarçonF. Auger

2 adm. assistants 2 technicians

also host to ESNT : common structure for nuclear theory within CEA – DSM/Irfu, DAM/SPN and Ganil (no permanent staff)

ALICE / QGP6 physicists

A. Baldisseri

COMPASS8 physicists + 1

F. Kunne

CLAS4 physicists

J. Ball

Hadron Theory1 physicist + 1

P. Guichon

MNM7 physicistsF. Gunsing

Spallation3 physicists

S. Leray

Nuclear Structure12 physicists

W. Korten

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M. GarçonF. Auger

ALICE / QGP6 physicists

A. Baldisseri

COMPASS8 physicists + 1

F. Kunne

CLAS4 physicists

J. Ball

Hadron Theory1 physicist + 1

P. Guichon

MNM7 physicistsF. Gunsing

Spallation3 physicists

S. Leray

Nuclear Structure12 physicists

W. Korten

2 adm. assistants 2 technicians

LENAC4 phys. + 3 eng.

+ 1 techn. + 1 adm.V. Blideanu

and soon to incorporate a laboratorywith nuclear expertise

on conception and dismantling

SPhN organization: 4 research themes / 7 groups + 1 lab.

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Nuclear structure

Shell evolution toward drip lines

The nucleus and all its shapes

Heavy and superheavy nucleipr

oto n

s

neutrons

+ Nuclear theory

GANIL/SPIRAL SPIRAL2MSU, RIKEN GSI FAIR

GANILJYFL SPIRAL2

GANIL/SPIRALMSU, LNL, GSI SPIRAL2

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Nuclear structure : some recent highlights

- ERC starting grant: MINOS (for future expts at RIKEN & GSI) / Alexandre Obertelli

- A good part of the funding for the base spectrometer S3 granted : « Equipex »

- First experiments with AGATA Demonstrator at Legnaro

- 24O studies at RIKEN (inelastic p,p’ with MUST2)

- Collisions of actinides (TDHF) : Lifetime of heaviest nuclear systems available on earth: 2 uranium nuclei in contact during a few zeptosecondes (10-21 s)

- Systematic studies over 500 nuclei with realistic NN + NNN forces (in progress).

preliminary

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Nuclear reactions & applications

NeutronsnTOF Cern & IRMM-Geel

Fission at NFS and ILL

Protons and ionsspallation

GSI & modélisation

Photons – PhotoNucRetarded emissions

Bruyères-le-Ch.

Neutrinososcillations, non-proliferation

Double Chooz & Nucifer

γ

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Recent highlight with neutrinos

2 highly visible publications from SPhN-SPP-Subatech):- the most « exact » calculations todate of neutrinos

spectra from nuclear reactors arXiv:1101.2663 - consequences for neutrino physics compatible with the

hypothesis of a « sterile » neutrino arXiv:1101.2755 

Experimental checks proposed

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valence quarks

gluons andsea quarks

10-3 10-1 110-2 x

Hera … EIC/ENC

Compass

JLab

Nucleon Structure : CLAS, COMPASS & LQCD

At stake: Quarks and gluons in the nucleon,Origin of hadron mass and spin(Generalized) parton distributionsUnderstanding confinement

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Nucleon Structure : some recent highlights

- COMPASS proposal approved by SPSC, 5-year plan endorsed by Cern Reseach Board: DVCS/GPD, Drell-Yan, …- Fabienne Kunne new co-spokesperson of COMPASS- Increased precision on spin structure functions → better determination of polarized parton distributions Δu, Δd, … → indirect constraints on ΔG - COMPASS and RHIC agree for a small value of ΔG

- Original Micromegas cylindrical tracker under construction for CLAS12

- CLAS, COMPASS, Global DVCS analyses within HP3

- (Modest) GPU cluster installed for specific LQCDcalculations (ETMC collaboration).

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Irfu concentrates on muon spectrometer: study of heavy quarkonia (J/Ψ, Υ, …) formation and attenuation in dense matter

From proton-proton to lead-lead collisions

Di-muons invariant mass

Evénement dimuon à √s = 7 TeV

QGP & ALICE

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• Nuclear expertise in conception and dismantling• SPhN increases the span of its activities,

reaching over fundamental research to engineered applications of nuclear physics

SPhN towards its fifth dimension: Lenac

Reactor dismantling in Cadarache

S3 beam dump activation

Commercial cyclotron for medicine

Acceleration by laser

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SPhN at Irfu (CEA-Saclay)

- Present and active on (nearly) all main sub-fields of our discipline

- Key role of our physicists in various collaborations

- Synergy with engineers and technicians at Irfu allows for significant impact on hardware and software projects.

- Open to key applications of our science (nuclear energy and engineering, space, medicine,…)

- Though not formally connected to universities (and « Grandes Ecoles »), involved in teaching and lab training of students

- Communication at large (exchange between journalists and physicists, film under preparation at DSM,…)

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Irfu: the largest institute of CEACEA

~15 000

Matter Sciences

Irfu~ 630

Nuclear EnergyDefense Technology Life

Sciences

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Irfu: research & technology CEA

~15 000

Matter Sciences

Irfu~ 630

Nuclear EnergyDefense Technology

IFMIF EVEDA

Particle Physics

Nuclear Physics

AstrophysicsSpace technologies

Accelerators, SC Magnets

Systems engineering

Detectors, electronics, computing

Nuclear expertise 0 20 40m

Ion SourceRFQ

Li Target

High Energy BeamTransport

Li Loop

Test modules insideTest Cell

PIE Facilities

Institute of Research into the Fundamental laws of Universe

Life Sciences