First simulations of FAZIA Napoli 3-5 September 2007

Technical requirements for the physics of FAZIA Dynamics and EOS EURISOL  A IMF, b  4 , pulse shape (  high granularity) Exotic SPIRAL/SPIRAL2  high-resolution charged particle correlations  high granularity, |k| resolution Evaporation, level SPIRAL/SPIRAL2  A 1, E*  4 , pulse shape (  high granularity), low thresholds, coupling with spectrometers, neutron detectors …….And the other physics cases of the proposal, for further study……  Very adaptable geometry (beams, detectors)

Simulation Geometry : INDRA INDRA  4 (~ Chimera) INDRA  16 (FAZIA?) Configuration for test: 2 arrays in 2 chambers : Spherical array + Surrounded by neutron detectors? Annular array High granularity (strips?) Replaceable with a spectrometer Target Beam Neutron detector ?

Simulation Options for the detector : A up to element  Zn, otherwise EPAX |k| with uncertainty 5% Double hits  A, K adds 4  neutron detectors: efficiency (~20%), |k n | with uncertainty 15% Geometric coverage ~ 87% INDRA  [deg]  [deg]

36 Ar+ 58 Ni 12 A MeV  Select c.n. 94 Pd at 241 MeV, 1.8 cm/ns (lab) 129 Xe+Sn 50 A MeV  Select q.p. 120 Sn at 400 MeV, 9 cm/ns (lab) INDRA Simulation

Reactions : GEMINI 12 C+ 24 Mg 100 A MeV  Select 12 C at 30 MeV, 5.3 cm/ns (lab) 36 Ar+ 58 Ni 12 A MeV  Select c.n. 94 Pd at 241 MeV, 1.8 cm/ns (lab) 129 Xe+Sn 50 A MeV  Select q.p. 120 Sn at 400 MeV, 9 cm/ns (lab) !!! : Too good agreement with EPAX HIPSE 58 Ni+ 58 Ni / 68 Ni+ 68 Ni 40 A MeV  q.p. + q.t. 112 Sn+ 112 Sn / 132 Sn+ 132 Sn 40 A MeV  q.p. + q.t. QMD 58 Ni+ 58 Ni / 68 Ni+ 68 Ni 150 A MeV  q.p. + q.t. 112 Sn+ 112 Sn / 132 Sn+ 132 Sn 150 A MeV  q.p. + q.t.

Charged-particle SPIRAL/SPIRAL2 Nuclear structure in exotic (non-Weißkopf) decays: Probing excited heavy cluster states 12 C decays in Li+Li |k| perfectly measured: INDRA: not adapted INDRA  4: main peak INDRA  16: 2 peaks 12 C+ 24 Mg 100 A MeV  Select 12 C at 30 MeV, 5.3 cm/ns (lab)

|k| with uncertainty 0%, 2%, 5% INDRA INDRA  4 INDRA  16 Forward angles |k| is measured with an uncertainty

|k| with uncertainty 0%, 2%, 5% INDRA INDRA  4 INDRA  16 Backward angles |k| is measured with an uncertainty

Dynamics and EOS EURISOL E trans12 measured precisely with any granularity  INDRA  Correspondence with b (from the model) N/Z of IMF as a function of E trans12 A up to Z  3: not adapted A up to Z  28 (all IMF identified): resolved Small E trans12 may suffer from the hole of the beam

Dynamics and EOS EURISOL

Average neutron spectra (preliminary) Neutron multiplicity by  A  Z in complete events Mean neutron spectrum measured with a surrounding array, to be defined

Average neutron spectra (preliminary)

Conclusions FAZIA simulator Geometric options: OK More detailed detector properties: Next Physics cases  model simulations  filtering  solutions for FAZIA Dynamics & EURISOL A IMF, b 4 , pulse shape up to Zn (  high granularity) Exotic SPIRAL1/2correlations Granularity INDRA  16, very high |k| resolution Evaporation, level SPIRAL1/2 A 1, E* 4 , pulse shape, low thresholds, n detector, spectrometer ………………………