NIPNET , IONCATCHER , HITRAP

1. NIPNET, IONCATCHER,HITRAP Ioncatcher and NIPNET network working group meeting on gas cells IKS, Leuven, Belgium 10-11/11/2004 High precision mass measurements april 18-20, 2004, Saariselkä, Finland Nuts and bolts and bits D. Beck, J. Szerypo Trap assisted spectroscopy LPC Caen, France, 30-31 april, 2004

2. produce, select, stop, cool & collect, store Production Target Magnetic Separator Ion Catcher RFQ Cooler TRAP Produce&stop, select, cool & collect, store ISOL scheme Production Target Ionizer Magnetic Separator RFQ Cooler TRAP Hitrap scheme Stripping Target Magnetic Separator beam cooler TRAP The basic trapping scheme Precision Physics accelerator MeV keV eV meV neV Nuclear Physics + Atomic Physics + Particle Physics

3. Trapping à la KlugeNuclear Physics News 14-1(2004)14 Applications: • Mass Measurements • Accumulation, Cooling and Bunching • Storage Device • ????? • Highly Charged Ions Atom traps?

4. Aims of the networks • Production • Separation • Cooling • Accumulation Stop and cool • Gas cells • RFQ’s Ion Catcher • Penning • Paul • Optical Trap measurements • Mass spectrscpy • Atom spectrscpy NIPNET Hitrap • Sample holding Observing in-trap properties • Nuclear+atomic spectroscopy • Fundamental Interactions NIPNET Hitrap what and why?

5. produce, select, stop, cool & collect, store Production Target Magnetic Separator Ion Catcher RFQ Cooler TRAP Outline • Remark on ioncatcher issue gas cell stopper (impact for facility creation) • Some remarks on mass measurements/ electroweak interaction • Trap assisted spectroscopy (TAS)

6. Orsay KVI prototype Munich Recent RFQ coolers

7. Gas cell issue: (Leuven meeting) • In the motivation of NIPNET to the EU we wrote • First, it is necessary observe and identify very rare nuclides: a single ion or atom must be sufficient. • Secondly, to observe deviations from the Standard Model, high loading densities of short-lived nuclides are required… • But this is where we are with the gas cell: • The stopper gas cells produced in the collaboration (and MSU) spit out  10% of input. • Leuven group: analogy ionization chambers  high current densities can not be handled. • Stopping: via stripping and neutralization [1+]/[0]=(0→1)/(1→0)until collisional stopping takes over freeze out. Only worked out case is Hydrogen. • Lets see at the gas cell session?

8. Mass spectroscopy • It is getting more and more accurate • And towards shorter lifetimes Astrophysics Shells m/m10-5 Sub-shells Pairing m/m10-6 Pairing halos m/m10-7 Weak interaction m/m10-8 Atomic spectrscpy m/m<10-9 Nuclear spectroscopy regime Atomic spectroscopy Frontier: nuclear lifetime  accuracy nuclear and atomic theory More in Penningtrap session

9. C4 C11 C12 C10 C3 C9 C2 C8 C1 C7 C6 C18 C19 C5 C17 C4 C16 C15 C14 C22 C13 C21 C12 C20 C11 C19 C18 Frontier: precision measurements Mass measured at ISOLTRAP Reference mass

10. 3080 42Sc Ft (s) 50Mn 10C 54Co 38K 26Al 46V • for A=10-54, Ft=3072.3(2.0) s • with precisions: 3.10-4 for T1/2 • 3.10-4for branching ratios • 5.10-5for energy • In progress, new measurements for A>54 3070 66As Ft (s) 86Tc 70Br 82Nb 34Cl 14O 88Y 3065 62Ga Z 74Rb 1- Proton-rich nuclei N~Z Fundamental aspect of weak interaction Cécile Jollet, IReS Strasbourg, TAS Workshop, Caen March 31, 2004 V-A theory, hyp: the Vector Current is conserved (CVC) vector part of weak interaction not influenced by strong interaction To test CVC: study of superallowed Fermi  transitions 0+0+  Ft = ft (1+r) (1-c) = cste (r, c are correction terms) Present results We need to determine the complete decay scheme, r and c TAgS  measure branching ratios and T1/2 with the required precision Current measurement with TAgS : study of 62Ga g 9/2 

11. W.J. Marciano, BNL CKM Unitarity, Lattice Calculations of Decay Constants and New Physics(KITP 3-18-04) • Vus from Kaon decays is a mess! The old values have inconsistent branching ratio • New (published) data point E865 at BNL • New from Hyperon decays (Cabbibo himself) • KLEO data are still moving Hardy’s talk in Finland 0.2238±0.0030 0.2272±0.0030 0.2250±0.0027 My conclusion (TAS): Fermi decays excellent tool for studying nuclear structure CVC assisted spectroscopy 86 91

12. TAS: S. Rinta-Antila (JYFL) In-trap spectroscopy • Trapped ions form an ideal source without any scattering or energy loss in source material. • Strong magnetic field of a penning trap can be used to transport charged particles (e, p, a, ...) to the detector with high efficiency. e.g. conversion electrons etr ~ 50% • Energy and mass selection with trajectory radius rtr • In average electron rtr< proton rtr • Conversion electron rtr < beta rtr TAS=Trap assisted spectroscopymainly weak interaction relatedWITCH, Paul trap 6He, MOTs,

13. Legnaro Francium Atomictrapping and laser spectroscopy KVI: 41Ca

14. Michael Sewtz Next Nobelium Z=102

15. Conclusions? • Hope u-got some idea where the action is. • Excuses to those not mentioned explicitly. • Excuses to those mentioned explicitly. (Kluge) Andrey Rogachevskiy: “Status and future of the TRImP project” NIPNET status Ari Jokinen : “JYFL Penningtrap” P-traps discussion Michael Block : “Status Shiptrap” NIPNET status Stefano Varesi : “The Francium project” NIPNET status Daniel Rodriguez : “The LPC trap” NIPNET status Sam Coeck : “Status of the WITCH experiment” NIPNET status Celine Guenaut : ”Status of Colette: the RFQ cooler for Mistral” Poster Sophie Heinz : ”Status Munich Penning trap system” P-traps discussion Harmut Backe : “The atomic spectrosc0py of No and Fm” NIPNET status Krzysztof Pachucky : “pass” Frank Herfurth : “Status and new results at ISOLDE” NIPNET status