Beta strength measurements near to the 3rd r-process peak IFIC-Valencia Jose L. IFIC-Valencia PRESPEC Decay Workshop, Brighton, January 12-13, 2011.

Slides:

Advertisements

Similar presentations

New technique to determine beta half-lives in complex background conditions T. Kurtukian-Nieto 1, J. Benlliure 1, K.-H. Schmidt 2, L. Audouin 3, F. Becker.

Advertisements

ROGER CABALLERO FOLCH, FRS User meeting GSI, 28 th November 2011 S410 EXPERIMENT GSI – SEPTEMBER 2011.

Dante Nakazawa with Prof. Juan Collar

Grupo de Física Nuclear Experimental G F E N CSIC I M E January 2006, Hirschegg, AustriaM.J.G. Borge, IEM CSIC1 Hirschegg’06: Astrophysics and Nuclear.

LoI Relativistic Coulomb M1 excitation of neutron-rich 85 Br N. Pietralla G. Rainovski J. Gerl D. Jenkins.

Lorentzian-like models of E1 radiative strength functions V. A. Plujko, O. M. Gorbachenko, E. V. Kulich Taras Shevchenko National Kyiv University, Ukraine.

LOI for the AGATA-PRESPEC campaign, GSI Spectroscopy and B(E2) measurements in neutron rich Mo nuclei: Search for shape transitions near the astrophysical.

Shell model studies along the N~126 line Zsolt Podolyák.

Alpha Stucture of 12 B Studied by Elastic Scattering of 8 Li Excyt Beam on 4 He Thick Target M.G. Pellegriti Laboratori Nazionali del Sud – INFN Dipartimento.

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

ROGER CABALLERO FOLCH, Barcelona, 9 th November 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.

Excitation of nucleon resonances in charge-exchange reactions J. Benlliure Universidad de Santiago de Compostela Spain.

The BEta deLayEd Neutron emission measurements

The simplified description of dipole radiative strength function V.A. Plujko, E.V.Kulich, I.M.Kadenko, O.M.Gorbachenko Taras Shevchenko National University.

DESPEC Report: NuSTAR Management Meeting 12 th July 2010 DeSPEC Project formally started April Full array of (~)36 LaBr 3 detectors and mechanical.

Proton and Two-Proton Decay of a High-Spin Isomer in 94 Ag Ernst ROECKL GSI Darmstadt and Warsaw University.

Joint IAEA-ICTP Workshop on Nuclear Reaction Data for Advanced Reactor Technologies Student’s presentation Calculation of correction factors for neutron.

Compilation and Evaluation of Beta-Delayed Neutron emission probabilities and half-lives of precursors in the Non-Fission Region (A ≤ 72) M. Birch and.

Update on relevant proposals on beta-delayed neutron emission, recent experiments and evaluated data K.P. Rykaczewski Physics Division, ORNL Oak Ridge.

CMD-2 and SND results on the  and  International Workshop «e+e- Collisions from  to  » February 27 – March 2, 2006, BINP, Novosibirsk, Russia.

Beta and particle decay spectroscopy at the Super FRS Zenon Janas Nuclear Spectroscopy Division Warsaw University.

CUORICINO and CUORE Chiara Brofferio Università di Milano – Bicocca and INFN, Sez. di Milano NOW 2004 – Otranto 12 – 17 September 2004 On behalf of the.

The Project of Space Experiment with Wide Field Gamma-Ray Telescope (“GAMMASCOPE”) Skobeltsyn Institute of Nuclear Physics, Moscow State University.

1 TCP06 Parksville 8/5/06 Electron capture branching ratios for the nuclear matrix elements in double-beta decay using TITAN ◆ Nuclear matrix elements.

ExternalTargetFacility at CSR FRIB-China East Lansing Sun, Zhiyu Institute of Modern Physics, CAS.

Decay Spectroscopy Working Group Nuclear Structure Theory Morten Hjorth-Jensen – Shell Structure and Interactions Ivan Borzov – Theory of  Decay Applications.

N=126 factory Guy Savard Scientific Director of ATLAS Argonne National Laboratory & University of Chicago ATLAS Users Meeting ANL, May 15-16, 2014.

Background from the NIST test The pencil neutron beam (1 mm 2 ) with intensity about 7000 n/sec The beam was completely absorbed in the beam stop with.

Gamma-ray strength functions obtained with the Oslo method Ann-Cecilie Larsen July 8, 2008 Workshop on Statistical Nuclear Physics and Applications in.

Neutrino-nucleus interaction and its role in supernova dynamics and nucleosynthesis Karlheinz Langanke GSI Helmholtzzentrum Darmstadt Technische Universität.

Production and  half lives of heavy neutron-rich nuclei approaching the r-process path at N=126 José Benlliure Universidad of Santiago de Compostela Spain.

9-June-2003NDM2003 M. Nomachi M. Nomachi OSAKA University and MOON collaboration MOON (Mo Observatory Of Neutrinos) for double beta decay Photo by

Pygmy Dipole Resonance in 64Fe

Nuclear Structure Studies South of 208 Pb Using Multi-nucleon Transfer Reactions BNL - U. Maryland - Oregon State U. Nuclides south of 208Pb can be reached.

Proton emission from deformed rare earth nuclei: A possible AIDA physics campaign Paul Sapple PRESPEC Decay Physics Workshop Brighton 12 January 2011.

Athens, July 9, 2008 The two-step  cascade method as a tool for studying  -ray strength functions Milan Krtička.

Beta decay studies using total absorption gamma spectroscopy technique A. Algora, M. Csatlós, L. Csige, J. Gulyás, M. Hunyadi, A. Krasznahorkay Institute.

R-process experiments at the National Superconducting Cyclotron Laboratory Giuseppe Lorusso NSCL at Michigan State university.

Aleksandra Kelić for the CHARMS collaboration§ GSI Darmstadt, Germany

Spectroscopy studies by  decay -Proton-rich nuclei N~Z Deformation in the mass region A~75 Fundamental aspects of weak interaction, test of CVC -Neutron-rich.

Progress in  half lives of nuclei approaching the r-process path at N=126 José Benlliure Universidad de Santiago de Compostela, Spain INPC 2007.

Production and beta decay lifetimes of heavy neutron-rich nuclei approaching the r-process path Teresa Kurtukian-Nieto Universidad de Santiago de Compostela.

Issues on  -Decay Total Absorption Spectroscopy J.L. Tain Instituto de Física Corpuscular C.S.I.C -

Structure of Super-Heavy Elements Andreas Heinz A. W. Wright Nuclear Structure Laboratory Yale University ATLAS Workshop, August 8-9, 2009.

1 Isospin symmetry. Beta-decay studies of Tz=-1 nuclei at Rising. B. Rubio for the Valencia-Osaka-Surrey-Leuven-Santiago-GSI Istambul-Lund-Legnaro Collaboration.

Nuclear Spectrcosopy in Exotic Nuclei Paddy Regan Dept,. Of Physics University of Surrey, Guildford, UK

Decay studies in Exotic, Neutron- Rich A~200 Nuclei Steven Steer for the Stopped Beam RISING Collaboration Dept. of Physics, University of Surrey Guildford,

Exotic neutron-rich nuclei

Second Workshop on large TPC for low energy rare event detection, Paris, December 21 st, 2004.

2 nd BRIKEN WORKSHOP: An Overview of the Project 2 nd BRIKEN WORKSHOP, RIKEN Nishina Center 30-31/07/2013 C. Domingo-Pardo IFIC (CSIC-University of Valencia)

Gamma Spectrometry beyond Chateau Crystal J. Gerl, GSI SPIRAL 2 workshop October 5, 2005 Ideas and suggestions for a calorimeter with spectroscopy capability.

PANIC’08 Eilat, November 13th, 2008 Teresa Kurtukian Nieto CEN Bordeaux-Gradignan Supernova remnant N49 Photo Credit: Hubble Heritage Team (STScI / AURA),

Monte Carlo methods in spallation experiments Defense of the phD thesis Mitja Majerle “Phasotron” and “Energy Plus Transmutation” setups (schematic drawings)

Solar gamma-ray and neutron registration capabilities of the GRIS instrument onboard the International Space Station Yu. A. Trofimov, Yu. D. Kotov, V.

Proton emission from deformed rare earth nuclei: A possible AIDA physics campaign Paul Sapple PRESPEC Decay Physics Workshop Brighton 12 January 2011.

Double Beta Decay of 48Ca with CaF2(Eu) - ELEGANT VI -

Nuclear excitations in nucleon removal processes

2nd International Workshop on Double Beta Decay

Decay spectroscopy with LaBr3(Ce) detectors at RIKEN and GSI

Beta and isomer delayed spectroscopy of neutron-rich Dy to Os Nuclei: Mapping shape evolution and Quadrupole collectivity at large neutron excess. Paddy.

Beta strength measurements near to the 3rd r-process peak

Isomers and shape transitions in the n-rich A~190 region:

Production and b half lives of heavy neutron-rich

The role of fission in the r-process nucleosynthesis

On a Search for -Mesic Nuclei at MAMI-C

Experimental determination of isospin mixing in nuclear states;

Local coordinator: S. Nishimura

LAHET code simulations in comparison with bare Pb spallation target experiment Daniela Henzlova.

Presentation transcript:

Beta strength measurements near to the 3rd r-process peak IFIC-Valencia Jose L. IFIC-Valencia PRESPEC Decay Workshop, Brighton, January 12-13, 2011 (South-west of 208 Pb) Darmstadt-Gatchina-Madrid-Santiago- Surrey-Valencia… + AIDA DESPEC TAS

Beta strength calculations are needed in order to obtain T 1/2 and P n values for most of the nuclei involved in r-process calculations The quality of the model calculations is judged by comparison with experimental T 1/2 and eventually P n values in particular for the most neutron rich accessible nuclei, which are however integral quantities Direct comparison of calculated and measured S  provides a more stringent test of the nuclear structure models  : 0+ Fermi  : 1+ Gamow-Teller  : 0-,1- Non-unique first forbidden  : 2- Unique first forbidden …

 - decay (deconvolution) spectrum strength Total Absorption Gamma-ray Spectroscopy: Uses large 4  scintillation detectors, aiming to detect the full  -ray cascade rather than individual  -rays real TAS ideal TAS (  =100%) Inverse problem MC simulations + know level sch. + statistical model

“South-west” of 208 Pb GT FF “Close” to r-process 3rd abundance peak Decay dominated by FF transitions Largely unexplored but accessible at GSI r-process

Borzov, Phys.At.Nucl. (2011) DF+QRPA both GT and FF microscopic no deformation 200 Os (Z=76, N=124) Expected number of levels: N lev =800Q  = 2.6 MeV (SY) Goriely et al. PRC78(08)

202 Ir (Z=77, N=125) Expected number of levels: N lev =4.1  10 4 Q  = 5.4 MeV (SY)

Further into the play: deformation |  2 | deformation (Exp: NuDat) Moeller et al., ADNDT59(95)185

T 1/2 PnPn PRC67(03) : GT+FF ADNDT66(97)131 : GT Moeller et al. FRDM+QRPA FF from Gr.Th. deformation exper. Q , S n

DF3: Borzov, Phys.At.Nucl. (2011), FRDM: Moeller et al., PRC67(03) Z=76 Z=77Z=78Z=79

Region accessible with enough statistics J. Benlliure et al., NIC XI, Heidelberg, 2011 T. Kurtukian et al., NPA827 (2009) 687c A.I. Morales, PhD Thesis, U. Santiago, 2011 ( 204 Au, 204,203 Pt, 201 Ir,…) 208Pb (1GeV/u) + Be (2.5g/cm2)

N lev =4.1  10 4 Q  = 5.4 MeV (SY)  A.I. Morales, PhD Thesis, U. Santiago, 2011 N lev =2.7  10 3 Q  = 2.3 MeV (SY)

J. Benlliure et al., NIC XI, Heidelberg, 2011 C. Domingo-Pardo et al., Experiment S410

modules: 15  15  25 cm 3 NaI(Tl) + 5” PMT (50% light col.) V= 95 L, M= 351 kg R E =  t(FWHM) = 4.5 ns Exp. Light collection MC simulation PROTOTYPE Half detector will be ordered this year The rest in 2012