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Coulex Analysis Code – GOSIA: Current S tatus of D evelopment. Paweł Napiorkowski (HIL UW -Warsaw). Overview. What the GOSIA is. GOSIA2 GOSIA Manual Interpolation can make a problem ( p olynomial s vs. s pline) PIN option for GSI experiment. SIGMA. available spectroscopic data - PowerPoint PPT Presentation
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INTAG workshop, GSI, May 24-25, 2007
Coulex Analysis Code – GOSIA: Current Status of Development
Paweł Napiorkowski (HIL UW -Warsaw)
INTAG workshop, GSI, May 24-25, 2007
Overview
What the GOSIA is. GOSIA2 GOSIA Manual Interpolation can make a
problem(polynomials vs. spline)
PIN option for GSI experiment
INTAG workshop, GSI, May 24-25, 2007
COULEX Analysis Scheme
Measured yields
Measured yields
available spectroscopic
data(, BR, )
available spectroscopic
data(, BR, )
Level schemeLevel scheme Experimental setup geometry:
particle and detectors
Experimental setup geometry:
particle and detectors
set of matrix elements
set of matrix elements
shape parameters for
individual states
shape parameters for
individual statesSIGMA
GOSIA
MINIMALIZATION PROCEDURE
MINIMALIZATION PROCEDURE
Errors estimationErrors estimation
Quadrupole rotational invariant
sum rules
Quadrupole rotational invariant
sum rules
INTAG workshop, GSI, May 24-25, 2007
GOSIA2 GOSIA2 is intended to handle both
target and projectile ”simultaneous” excitation with common normalization coefficients
”Simultaneous” inclusion of the lines originating from the second partner and usually known spectroscopic data makes it possible to achieve a unique solution for exotic case.
For details – see upgraded manual
INTAG workshop, GSI, May 24-25, 2007
GOSIA HomePage @ HILhttp://www.slcj.uw.edu.pl/en/81.html
http://web1.pas.rochester.edu/~cline/Research/
INTAG workshop, GSI, May 24-25, 2007
GOSIA mailing list
To subscribe: send an e-mail [email protected]
a text message: subscribe gosia
To get help, consultancy, to request a change in code…
Also:Magda Zielińska: [email protected]ł Napiorkowski: [email protected]
INTAG workshop, GSI, May 24-25, 2007
Interpolation: be carefull Internal conversion coeficient
13 June 2006: Corrected ICC description in OP,YIEL to include use of four point interpolation and increase in number of ICC energies to 50.
Integration:Using excessively fine meshpoints in the OP,INTG step or an excessive number of subdivisions may cause convergence issues.
INTAG workshop, GSI, May 24-25, 2007
0
0,5
1
1,5
2
2,5
3
3,5
0 1 2 3 4 5 6
Polynominals
0
0,5
1
1,5
2
2,5
3
3,5
0 1 2 3 4 5 6
n=5
0
0,5
1
1,5
2
2,5
3
3,5
0 1 2 3 4 5 60
0,5
1
1,5
2
2,5
3
3,5
0 1 2 3 4 5 6
n=21
Polynominals vs. splines
0
0,5
1
1,5
2
2,5
3
3,5
0 1 2 3 4 5 6
Splines
Expect a new option SPL in GOSIA1_002 soon (June 2007)
INTAG workshop, GSI, May 24-25, 2007
COULEX with slow down beams
Segmented annular Si detector
(position and energy?)
Target
Ge
Ge
(Θ,φ)
(Θ,φ)
Event by event reconstruction:•to group the same scattering angle•to crate gamma spectrum for a given scattering angle
INTAG workshop, GSI, May 24-25, 2007
”Virtual” particle detector
M.Zielińska, 44Ar @ GANIL
INTAG workshop, GSI, May 24-25, 2007
”Virtual” Detector Model for GOSIA PIN option useful to describe very
difficult shapes of the particle detector
The idea was successfully tested Problem: σp(Θ,φ) is not Rutherford’s But can be measured (e.g.
downscaling) Modification of PIN option in
necessary -weight parameter has to be applied to integration procedure(will be ready after summer 2007)
INTAG workshop, GSI, May 24-25, 2007
Experiment – a physics case Something old, something new… Known - to test the procedure Unknown & exotic: to have a
discover 100Mo & 102Mo
INTAG workshop, GSI, May 24-25, 2007
Low laying 0+ in Mo isotopes
INTAG workshop, GSI, May 24-25, 2007
Shape evolution in Mo isotopes
M.Zielińska, K.Wrzosek,…
INTAG workshop, GSI, May 24-25, 2007
What is a deformation of 102Mo?
??98Mo
