Presentation is loading. Please wait.

Presentation is loading. Please wait.

Along the N=126 closed shell: study of 205 Au through its πh 11/2 -1 isomeric decay Zs.Podolyák, A.Algora, C.Brandau, K.Burkard, P. Butler, J.Cederkall,

Published byLinda Conley Modified over 8 years ago

Similar presentations

Presentation on theme: "Along the N=126 closed shell: study of 205 Au through its πh 11/2 -1 isomeric decay Zs.Podolyák, A.Algora, C.Brandau, K.Burkard, P. Butler, J.Cederkall,"— Presentation transcript:

1 Along the N=126 closed shell: study of 205 Au through its πh 11/2 -1 isomeric decay Zs.Podolyák, A.Algora, C.Brandau, K.Burkard, P. Butler, J.Cederkall, V.N.Fedosseev, L.M.Fraile, A.Garnsworthy, W.Gelletly, G.Jones, Z.Liu, P.H.Regan, B.Rubio, Ch.Scheidenberger, S.Steer, T.Storra, N.Thompson, P.M.Walker, S.Williams University of Surrey, Guildford, UK ISOLDE, CERN, Switzerland IFIC, CSIC-University of Valencia, Spain ATOMKI, Debrecen, Hungary GSI, Darmstadt, Germany

2 Beta decay of 130 Cd I.Dillmann et al., Phys. Rev. Lett. 91 (2003) 162503 Q β in agreement with mass theories considering shell quenching at N=82 Evolution of shell structure: -disappearance of magic numbers (new ones appear) –light nuclei -shell quenching Suggested shell quenching at N=82 What about the N=126 shell closure?

3

4 Excited states of N=126 nuclei ‘below’ 208 Pb preliminary

5 N=126, 4 proton holes GSI, FRS, March 2006 Sensitive to lifetimes < 1 ms S.Steer, Zs.Podolyák et al.

6 (197 Au: B(M4)=2.4(8) W.u. 207 Tl: B(M4) =3.2(3) W.u.) 201 Au T 1/2 ~21s 203 Au ~13s 205 Au (E x =700 keV) ~6.3s (E x =1000 keV) ~0.33s ? Experimental aims: energy of the πh 11/2 -1 proton-hole orbital πh 11/2 -1 -> πd 3/2 -1 transition strength (maybe πh1 1/2 -1 -> πs 1/2 -1 transition strength)

7 ● M. Pfützner et al., Phys. Lett. B444 (1998) 32. ■ M. Pfützner et al., Phys. Rev. C65 (2002) 064604. ▲ K. Gladnishki et al., Phys. Rev. C69 (2004) 024617. isomeric ratio:

8

9 B(E4)=3.1(21) W.u. B(E4)=3.2(13) W.u. N=120 Future: Ir nuclei? ISOLDE could do it!

10 Experiment -ionisation scheme already developed (RILIS efficiency 3%) high beam intensity - tape system (isobaric conaminants and Au groundstate live longer) - gamma (Ge) + beta+ conversion electron (mini-orange) measurement (effic. ~2% ~30% ~5%) beam Ge (above) Ge Si(Li) scintillator (β) mini-orange

11

12 beamMax. available intensity targetIon sourceshifts 201 Au1x10 6 ion/sUCxRILIS3 203 Au5x10 5 ion/sUCxRILIS3 205 Au2x10 5 ion/sUCxRILIS3 Beam request Much less is enough

13

Download ppt "Along the N=126 closed shell: study of 205 Au through its πh 11/2 -1 isomeric decay Zs.Podolyák, A.Algora, C.Brandau, K.Burkard, P. Butler, J.Cederkall,"

Similar presentations

Fast-Timing with LaBr 3 :Ce Detectors and the Half-life of the I π = 4 – Intruder State in 34 P (…and some other stuff maybe..) Paddy Regan University.

Fast-Timing with LaBr 3 :Ce Detectors and the Half-life of the I π = 4 – Intruder State in 34 P (…and some other stuff maybe..) Paddy Regan University.
Search for key nuclear structure states below 132 Sn M. Górska, M. Pfützner, H. Grawe et al.

Search for key nuclear structure states below 132 Sn M. Górska, M. Pfützner, H. Grawe et al.
Shell model studies along the N~126 line Zsolt Podolyák.

Shell model studies along the N~126 line Zsolt Podolyák.
Be BeTe BeO Gamma-ray spectroscopy of cluster hypernuclei : 9  Be K. Shirotori for the Hyperball collaboration, Tohoku Univ. 8 Be is known as the  -

Be BeTe BeO Gamma-ray spectroscopy of cluster hypernuclei : 9  Be K. Shirotori for the Hyperball collaboration, Tohoku Univ. 8 Be is known as the  -
Coulomb excitation of the band-terminating 12 + yrast trap in 52 Fe IFIC, CSIC – University of Valencia, Spain University and INFN-Sezione di Padova, Italy.

Coulomb excitation of the band-terminating 12 + yrast trap in 52 Fe IFIC, CSIC – University of Valencia, Spain University and INFN-Sezione di Padova, Italy.
Penning-Trap Mass Spectrometry for Neutrino Physics

Penning-Trap Mass Spectrometry for Neutrino Physics
Isomer Spectroscopy in Near-Spherical Nuclei Lecture at the ‘School cum Workshop on Yrast and Near-Yrast Spectroscopy’ IIT Roorkee, October 2009 Paddy.

Isomer Spectroscopy in Near-Spherical Nuclei Lecture at the ‘School cum Workshop on Yrast and Near-Yrast Spectroscopy’ IIT Roorkee, October 2009 Paddy.
1. Isospin Symmetry and Coulomb Effects Towards the Proton Drip-Line RISING Experiment performed October 2003 Keele, GSI, Brighton, Lund, Daresbury, Surrey,

1. Isospin Symmetry and Coulomb Effects Towards the Proton Drip-Line RISING Experiment performed October 2003 Keele, GSI, Brighton, Lund, Daresbury, Surrey,
From Magic 208 Pb to the 170 Dy Mid-Shell Paddy Regan WNSL, Yale University, New Haven, CT and Dept. of Physics, University of Surrey, UK

From Magic 208 Pb to the 170 Dy Mid-Shell Paddy Regan WNSL, Yale University, New Haven, CT and Dept. of Physics, University of Surrey, UK
Nucleon knockout reactions with heavy nuclei Edward Simpson University of Surrey Brighton PRESPEC Meeting 12 th January 2011.

Nucleon knockout reactions with heavy nuclei Edward Simpson University of Surrey Brighton PRESPEC Meeting 12 th January 2011.
Teresa Kurtukian-Nieto Centre d’Etudes Nucléaires de Bordeaux Gradignan Precision half-life determination of the superallowed 0 + → 0 + β + -emmiters 42.

Teresa Kurtukian-Nieto Centre d’Etudes Nucléaires de Bordeaux Gradignan Precision half-life determination of the superallowed 0 + → 0 + β + -emmiters 42.
GT (  ) : Weak Process: Important roles in the Universe Combined Analysis of Mirror GT Transitions for the study of Proton-Rich Far-Stability Nuclei.

GT (  ) : Weak Process: Important roles in the Universe Combined Analysis of Mirror GT Transitions for the study of Proton-Rich Far-Stability Nuclei.
Angular momentum population in fragmentation reactions Zsolt Podolyák University of Surrey.

Angular momentum population in fragmentation reactions Zsolt Podolyák University of Surrey.
Relativistic Coulomb excitation of nuclei near 100 Sn C.Fahlander, J. Eckman, M. Mineva, D. Rudolph, Dept. Phys., Lund University, Sweden M.G., A.Banu,

Relativistic Coulomb excitation of nuclei near 100 Sn C.Fahlander, J. Eckman, M. Mineva, D. Rudolph, Dept. Phys., Lund University, Sweden M.G., A.Banu,
University of Brighton 30 March 2004RISING stopped beam physics workshop Microsecond isomers in A~110 nuclei Few nuclei have oblate ground states (~86%

University of Brighton 30 March 2004RISING stopped beam physics workshop Microsecond isomers in A~110 nuclei Few nuclei have oblate ground states (~86%
Parity Violation in the  decay of polarized 93 Tc 17/2 - isomers B.S. Nara Singh, M. Hass and G. Goldring Weizmann Institute of Science, ISRAEL D. Ackerman,

Parity Violation in the  decay of polarized 93 Tc 17/2 - isomers B.S. Nara Singh, M. Hass and G. Goldring Weizmann Institute of Science, ISRAEL D. Ackerman,
The Long and the Short of it: Measuring picosecond half-lives… Paddy Regan Dept. of Physics, University of Surrey, Guildford, GU2 7XH, UK

The Long and the Short of it: Measuring picosecond half-lives… Paddy Regan Dept. of Physics, University of Surrey, Guildford, GU2 7XH, UK
New Isomers from Fast Fragmentation Reactions Dr. Paddy Regan Dept. of Physics University of Surrey, Guildford, GU2 7XH, UK

New Isomers from Fast Fragmentation Reactions Dr. Paddy Regan Dept. of Physics University of Surrey, Guildford, GU2 7XH, UK
„the perfect stopped beam experiment“ clean fragment separation   unique fragment identification  A, Z fragment position  x, y, z decay radiation 

„the perfect stopped beam experiment“ clean fragment separation   unique fragment identification  A, Z fragment position  x, y, z decay radiation 
Isomer Spectroscopy in Near-Spherical Nuclei Lecture at the ‘School cum Workshop on Yrast and Near-Yrast Spectroscopy’ IIT Roorkee, October 2009 Paddy.

Isomer Spectroscopy in Near-Spherical Nuclei Lecture at the ‘School cum Workshop on Yrast and Near-Yrast Spectroscopy’ IIT Roorkee, October 2009 Paddy.

Similar presentations

Ads by Google