Loading in 5 sec....

Search of neutron-rich superdeformer, etc. with RIBF and GRETINAPowerPoint Presentation

Search of neutron-rich superdeformer, etc. with RIBF and GRETINA

- By
**draco** - Follow User

- 69 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about ' Search of neutron-rich superdeformer, etc. with RIBF and GRETINA' - draco

**An Image/Link below is provided (as is) to download presentation**

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

### Search of neutron-rich superdeformer, etc. with RIBF and GRETINA

Makito Oi

Senshu University and RIKEN

in collaboration with

Eiji Ideguchi

CNS, University of Tokyo

Phil Walker

University of Surrey

Gammashpere

- Successes:
- superdeformation
- magnetic rotation
- high-K (yrare) states

High-spin physics

Many unsolved problems

- Superdeformation (esp. mid/heavy)
- Linking transitions
- Decay mechanism
- “Third” minimum (hyperdeformation)

- ‘Triaxiality’
- Wobbling motion
- Chiral rotation

- “Yrare” physics in general

GRETA/GRETINA: new “eyes” to see nucleus

Everytime new ‘eyes’ are invented, new physics is found

- To see:
- neutron-rich superdeformer
- superheavy K-isomer
- chiral and/or wobbling rotation
- Ultra high-spin ( > 100 h/2π)

Superdeformation of 40Ca

- B1: SD (8p-8h)
- B2: Oblate? (4p-4h)
- B1: PRL87,222501(2001)
- B2: PRL29,1261 (1972)

Deformed shell structure

(Nilsson model)

Backbending plot

(HFB with P+QQ) : MO, Phys. Rev. C (2008)

Rotational alignment

- Right (without g9/2) and left (with g9/2)

Deformation

- Left for elongation (β）
- Right for triaxiality (γ)

A spectulation: neutron-rich high-spin physics

A possible manifestation:shears-like mechanism?

Another manifestation:2D wobbling?

High-K isomer in superheavy nuclei

- Transition from high-K to low-K in No isotopes
- Splitting of the N=5 shell
- f7/2 and f5/2

- Roles of triaxiality and wobbling

(Yang Sun: Projected Shell model)

Conclusion

- Multi-dimensional cranking model
- high-K isomer with Superheavy
- Wobbling and Chirality

- Triaxiality
- Superdeformation
- neutron-rich
- Ultra-fast

High-spin physics with RI and GRT:

Backbend Structure

(d5/2)-2(s1/2d3/2)-7(fp)8(g9/2)1

Nuclear structure

Finite quantum many-body system: --- protons and neutrons

- Shape and Size
- Short-range force --- driplines
- Shell effects --- M-Num, S-Def

- Pairing
- Backbending (structural change)

Download Presentation

Connecting to Server..