Isospin Distillation Mechanism:Isospin Distillation Mechanism:““direction” of the spinodal unstable modedirection” of the spinodal unstable mode

!

SYME~

y = proton fraction

ISO

SP

IN D

IFF

US

ION

WIT

H D

EN

SIT

Y

GR

AD

IEN

TS

AS

YS

OF

TS

UP

ER

AS

YS

TIF

F

np

np

124Sn

112Sn

No

-neutrons migrate from

PL

F (

124Sn) to T

LF

(112S

n)W

ith -neutrons from

PL

F and T

LF

migrate tow

ards neck region!

TPPTPgasPLF IIII

Ip

roj

Itar

IP

T

IT

P

Igas P

Iga s T

I0 P

I0 T

ISO

SP

IN E

QU

ILIB

RA

TIO

N A

T F

ER

MI E

NE

RG

IES

b=8fm

b=9 fm

b=10fm

120fm/c

100fm/c

80fm/c

30°

Mid-Rapidity

VCM Vp

--Exp. Data Slope=0.22

--BNV-Th. Slope=0.32

PLF residues

2<Z<13

Vp/2

BNV-Th +%10

VV

BNV+fluct..cMeV /1000

P T IMFPLF

TLF

REVERSE –CHIMERA EXP. LNS 2003 (preliminary):COMPARISON WITH BNV STOCHASTIC MEAN-FIELD