non-axial hexadecapole deformations of heaviest nuclei m. kowal, a. sobiczewski soltan institute for...

10
Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations • Deformation space • Results • Conclusions XIII Nuclear Physics Workshop Kazimierz Dolny, 27. 09 - 1.10. 2006

Post on 22-Dec-2015

226 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Non-axial hexadecapole deformations of heaviest nuclei

M. Kowal, A. SobiczewskiSoltan Institute for Nuclear Studies, Warsaw, Poland

• Method of the calculations

• Deformation space• Results• Conclusions

XIII Nuclear Physics WorkshopKazimierz Dolny, 27. 09 - 1.10. 2006

Page 2: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Method of the calculations

• The calculations are done within a macroscopic-microscopic approach

• Yukawa-plus-exponential model is used for the macroscopic part

• Strutinski shell correction taken for its microscopic part

• The shell correction is based on the Woods-Saxon single-particle potential with the "universal" variant of its parameters

Page 3: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Deformation space

• Nuclear radius

• Bohr quadrupole deformation

• Hexadecapole deformation

Page 4: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

6-dimensional grid

Page 5: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

-4,0

-3,0

-2,0

-1,0

-1,0

-1,0

1,0

0

-2,0

1,0

0,0 0,1 0,2 0,3 0,4 0,5 0,60,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

= 6

0o

= 30o

2cos(

2)

284114

2si

n( 2

)

Page 6: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

-4,0

-3,0 -2,0

-1,0

-1,0

-2,0

0

-3,0

-3,0

0

1,0

-4,0

0

0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

0,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

(-1,2)

= 6

0o

= 30o

2sin

( 2)

2cos(

2)

284114

Page 7: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Effect of total hexadecapole deformation

-0,50-1,0

-1,5

-1,5

-0,50 -2,0

-2,0

-1,0-1,0

-2,5-1,5

0,0 0,1 0,2 0,3 0,4 0,5 0,60,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

= 30o =

60

o

284114

2sin

( 2)

2cos(

2)

Page 8: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Effect of non-axiality parameter

-0,10

-0,20-0,30

0,0 0,1 0,2 0,3 0,4 0,5 0,60,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

= 30o

= 6

0o

284114

2si

n( 2)

2cos(

2)

Page 9: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Effect of parameter

-0,10

-0,10

-0,20

-0,20

-0,30

-0,40 -0,10-0,50

-0,60-0,70

-0,30

0,0 0,1 0,2 0,3 0,4 0,5 0,60,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

= 6

0o = 30

o284114

2si

n( 2

)

2cos(

2)

Page 10: Non-axial hexadecapole deformations of heaviest nuclei M. Kowal, A. Sobiczewski Soltan Institute for Nuclear Studies, Warsaw, Poland Method of the calculations

Conclusions

• Non-axial deformation 2 is important to describe correctly static barriers heights for SHE.

• Non-axial deformation 4 doesn’t play important role for SHE.

6 non-axiality deformation will be considered in the future.