Production of Beams:- Stable beams from Be-U, 48Ca ~3.1012pps, 238U ~2.1010pps~60 A.MeV for Ni

-RIB in-target fragmentation Noble gas (i.e. 6He ~ 5.106pps)~12A.MeV/CIME, alkali in prep-SIRA test bench-SME interdiscplinary research

EXPE

RIM

ENTA

L A

REA

SGeneral presentation of the GANIL/SPIRAL1 facility

Spectrometers:LISEProduction by fragmentation/high selectivity

VAMOSHigh acceptance spectrometer E/E~10-3, p/p~5%, =8°

SPEGHigh resolution spectrometer E/E~10-4, p/p~3.5%, =2°

Si

Si(Li)CsI

Electronics

EXOGAM INDRA

MAYA

Available detectors

Highlights -1- Haloes, resonances and clusters

6Henn

8Hen

n

Larger charge radius of 6He than 8He (laser spec.)P. Mueller et al., ANL, Univ Chicago, GANIL, Los Alamos

7H

Resonant state in 7H

M. Caamano et al., USC, GANIL, Liverpool, CEA Saclay, Daresbury, Krakow,…

2 neutrons fusion enhanced

angle

Correlation of towed neutrons

Relative angle 6He6He

M. Assié et al., IPNO, GANIL, LPC, NSCL, Uppsala, Surrey, Subatech,…

M. Chatterjee et al., Mumbai, GANIL, Warsaw, NSCL, CEA Saclay, Daresbury, Surrey,…

Highlights 2: Nuclear structure / spectroscopy

Low 2+ energy in 42SiIn beam spectro

B. Bastin et al., LPC, GANIL, IPNO,Bucharest, CEA Saclay, Bonn… - 10

- 6

- 2

0

- 8

- 4

SPE(

MeV

)

+ 2

f7/2

p3/2

p1/2

f5/2

28

28

49Ca47Ar 2018

N=29

Reduction of N=28 and SO splittings(d,p) with MUST

L. Gaudefroy et al., IPNO, GANIL, Debrecen, CEA Saclay, Mainz, Dubna…

p3/2

p1/2

f7/2

f5/2

47Ar

Fusion to reach superheavies, channeling in a monocristal -> lifetimes

monocristal

tshorttlong

proj

Highlights 3 Production/study of super heavy elements

M. Morjean et al., GANIL, IPNO, CEA Saclay, INSP Paris, Bucharest, IPNL 0 0.2 0.4 0.6 0.8

(deg)

Nor

mal

ized

Yie

ld

Fusion-Fission

00.20.40.60.8

11.2

0.20.40.60.8

11.20.20.40.60.8

11.2

U sequential fission + …

Quasi-elastic(target)

Location island of superheavies : Increased lifetimes for Z=120 and 124, not for Z=114

238U+Ni

Isospin dependence of the symmetry energy (INDRA@VAMOS)

40-48Ca + 40-48Ca @ 35 MeV/A

Z=N

CONeMgAlSiP SClArKCa

IPN Orsay, GANIL, Catania, Quebec, GSI…

Highlights 4 - Matter compressibility/ Dense matter

Monopole resonance in 56Ni(MAYA)

L=0

Nuclear matter incompressibility K∞

IPN Orsay, Liverpool, GANIL, USC,CEA Saclay …

New Trends 1 : deep inelastic collisions, fusion-fission

QQ

D

45° 238U, 6.5 MeV/u

drift chamber: x,y

drift chamber: x,y

Se-D: trigger, t1

ionisation chamber: Esilicon wall: E, t2

62Fe

64Ni

Mgv1

v2

1x180°3x135°

5x90°

62FeDeep inelastic collisions : spectroscopy and lifetimesCEA Saclay, GANIL, Legnaro, …

12C+238U fission fragments (FF)GANIL, GSI, USC, CENBG, IPNL, …

Isotopic distrib of FFProduction ratesNuclear spectroscopy with FF

High 238U beam intensity (>100nAe) Increase of VAMOS acceptance (x3)Construction of a rotating target Focal plane detection for decay tagging (MUSETT)Upgrade of EXOGAM – DEBATED NOW !

UPGRADE VAMOS

Next Spring : -(d,p) for (n,) in 60Fe ; -size of N=50 gap in 68Ni ; -density dependence of SO

MUST2 + annular Si + EXOGAM(F. Hammache, G. Duchêne, O. SorlinIPN Orsay, GANIL, IReS Strasbourg,CEA Saclay, Univ. Madrid, Barcelona)

New trends 2 - Transfer reactions (d,p), (p,t), (d,t), (d,3He)

Last year campaign – SPIRAL1 beams :20O (d,p), (d,t); 26Ne (d,p) (d,t)

MUST2 + TIARA + EXOGAM(B. Fernandez, R. Lemmon, Univ. Surrey, Guilford, Manchester, IPN Orsay, GANIL, CEA Saclay, USC …)

20O (d,t) – A. Ramus

indirect

direct

(m

b)

14O(,p)17F

18F(p,)15O

New trends 3 - Nuclear astrophysics 14O(,p) to break-out from CNO cycle18F(p,) which destroys18F cosmic abundance

Univ. of Edinburgh, GANIL, IPN Orsay, Univ. York, Univ. Santiago de Compostela, U L Bruxelles, UPC-IEEC, Barcelona

Available detectors / Future plans

+ detectors temporary installed : neutron wall, Demon, …

INDRA : 4 – charged particle array for high energies

-> AZ4/ FAZIA: pulse shape analysis for detection in A and Z, higly segmented.

MUST2 : charged particle array, highly segmented and versatile, low energy

EXOGAM : 12 segmented clover Ge detectors, low energy , high versatility

-> EXOGAM 2 : pulse shape analysis, improve localization, higher count rate

MAYA : gas filled target, vertex localization of the reaction, tracking of particles

Highlights 3 Production/study of super heavy elementsFusion to reach superheavies, channeling in a monocristal -> lifetimes

M. Morjean et al., GANIL, IPNO, CEA Saclay, INSP Paris, Bucharest, IPNL

Location of island of superheavies : Increased lifetimes for Z=120 and 124, not for Z=114

0 0.2 0.4 0.6 0.8(deg)

Nor

mal

ized

Yie

ld

Fusion-Fission

00.20.40.60.8

11.2

00.20.40.60.8

11.2

00.20.40.60.8

11.2

U sequential fission + …

Quasi-elastic(target)