Mass Measurements of Short-lived Nuclei at HIRFL-CSR

Slides:

Advertisements

Similar presentations

Nuclear physics and facilities in China

Advertisements

Penning-Trap Mass Spectrometry for Neutrino Physics

Testing isospin-symmetry breaking and mapping the proton drip-line with Lanzhou facilities Yang Sun Shanghai Jiao Tong University, China SIAP, Jan.10,

High precision study of the  decay of 42 Ti  V ud matrix element and nuclear physics  Experimental and theoretical precisions  New cases: goals and.

GT (  ) : Weak Process: Important roles in the Universe Combined Analysis of Mirror GT Transitions for the study of Proton-Rich Far-Stability Nuclei.

The Atomic Mass Evaluation: Present and Future WANG Meng Institute of Modern Physics, CAS ARIS2014, Tokyo, June 2.

Coulomb excitation and  -decay studies at (REX-)ISOLDE around Z = 28 J. Van de Walle – KVI - Groningen 1. ISOLDE and REX-ISOLDE ; 2. Results around Z=28.

The Schrödinger Model and the Periodic Table. Elementnℓms H He Li Be B C N O F Ne.

Experiments with Stored Exotic Nuclei at Relativistic Energies  The Experimental Facility  Mass measurements  Lifetime measurements  Future Hans Geissel,

Overview of Storage-Ring Projects at Lanzhou Xinwen Ma Institute of Modern Physics, Chinese Academy of Sciences ILIMA GSI-Helmholtz, 28, Feb,

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

ILIMA at FAIR Isomers, Lifetimes and Masses at

Mass Measurements at CSRe and Related Physics Yuhu Zhang (Y. H. Zhang) Institute of Modern Physics, Chinese Academy of Sciences Lanzhou , China （

The 11 th Inter. Conf. on nucleus-Nucleus Collision, San Antonio Texas, May 27- June 1 Yu-Hu Zhang Institute of Modern Physics, Chinese Academy of Sciences.

Nuclear Level Densities Edwards Accelerator Laboratory Steven M. Grimes Ohio University Athens, Ohio.

Structures of Exotic 131,133 Sn Isotopes for r-process nucleosynthesis Shisheng Zhang 1,2 ( 张时声 ) 1. School of Physics and Nuclear Energy Engineering,

The Inverse Kinematics Resonance Elastic Scattering Reaction of 10,11,12 Be+p Liu Yingdu( 刘应都 ) PHD candidate Advisor ： Wang Hongwei, Ma Yugang

Tensor force induced short-range correlation and high density behavior of nuclear symmetry energy Chang Xu ( 许昌 ) Department of Physics, Nanjing Univerisity.

Alex Brown UNEDF Feb Strategies for extracting optimal effective Hamiltonians for CI and Skyrme EDF applications.

Objectives and benefits to the US nuclear physics programs Accomplishments so far Opportunities and Challenges Nuclear Theory Program Division of Nuclear.

1 Collective motion of Xe-Xe collision at CSR energy Xie Fei, Wu Kejun, Liu Feng ccnu Institute of Particle Physics.

Ning Wang 1, Min Liu 1, Xi-Zhen Wu 2, Jie Meng 3 Isospin effect in Weizsaecker-Skyrme mass formula ISPUN14, , Ho Chi Minh City 1 Guangxi Normal.

Where next (with HDU)? Q-value mass. excitation energies. Angular distributions of recoils l -value spectroscopic information.

GT (  ) : Important weak process  decay : absolute B(GT), limited to low-lying state CE reactions : relative B(GT), highly Ex region  decay  isospin.

KITPC Program: From nucleon structure to nuclear structure and compact astrophysical objects June 11 – July 20, 2012 Physics of Neutron Star.

Status and Prospective of HIRFL Experiments on Nuclear Physics Hushan Xu Institute of Modern Physics, CAS, Lanzhou KITPC: Relativistic Many-body.

Ning Wang An improved nuclear mass formula Guangxi Normal University, Guilin, China KITPC , Beijing.

GAN Zaiguo Institute of Modern Physics, Chinese Academy of Sciences Alpha decay of the neutron-deficient uranium isotopes.

Mass Measurements for Short-lived Nuclei at CSRe-Lanzhou Meng Wang Institute of Modern Physics, CAS The 9th Japan- China Joint Nuclear Physics Symposium.

CERN-INTC /INTC-P-415 Tackling the s-process stellar neutron density via the 147 Pm(n,  ) reaction Spokespersons: C. Guerrero (U. Sevilla) and.

Order of filling orbitals

Direct mass measurement of 58 Ni projectile fragments at CSRe Xinliang Yan Precision nuclear spectroscope group Institute of Modern Physics, Chinese Academy.

Z.Q. Feng( 冯兆庆 ), W.F. Li( 李文飞 ), Z.Y. Ming( 明照宇 ), L.W. Chen( 陈列文 ), F. S. Zhang ( 张丰收 ) Institute of Low Energy Nuclear Physics Beijing Normal University.

Shape evolution of highly deformed 75 Kr and projected shell model description Yang Yingchun Shanghai Jiao Tong University Shanghai, August 24, 2009.

Determining the rp-Process Flow through 56 Ni 56 Ni is a Waiting Point and imposes a delay Decay Lifetime: 2.3x10^4 s ; Burst Time: 10 – 100 s Largest.

Two-proton simultaneous emission from 29 S C.J. Lin 1, G.L. Zhang 1, F. Yang 1, H.Q. Zhang 1, Z.H. Liu 1, C.L. Zhang 1, P. Zhou 1, X.K. Wu 1, X.X. Xu 1,

Alexander Herlert High-precision mass measurements for reliable nuclear-astrophysics calculations CERN, PH-IS NIC-IX, CERN, Geneva, June 29, 2006.

TAMU, Cyclotron Institute Be ， 8 B+ 208 Pb Elastic Scattering at Intermediate Energies Jiansong Wang Institute of Modern Physics Chinese Academy.

March, 2006SERC Course1  Z>92 (Heaviest Element in Nature) and upto Z= achieved by n irradiation or p,  and d bombardment in Cyclotron ( )

Nuclear Mass Measurement and Evaluation WANG Meng Institute of Modern Physics, CAS 1st International Workshop on Nuclear Structure, Hadron Physics and.

RIBLL-1 能区放射性束弹性散射研究王建松中国科学院近代物理研究所. Institute of Modern Physics, Chinese Academy of Sciences Elastic Scatering Studies at RIBLL ， J.S.Wang 报告提纲关于.

Spectroscopy studies around 78 Ni and beyond N=50 via transfer and Coulomb excitation reactions J. J. Valiente Dobón (INFN-LNL, Padova,Italy) A. Gadea.

Max-Planck-Institut für Kernphysik, Heidelberg Zhuang GE RIKEN, Wako, Japan Mass measurements of short-lived nuclides at storage rings in Asia and its.

1 Atomic Mass Evaluation Meng WANG （王猛） CSNSM-CNRS, France MPIK-Heidelberg, Germany IMP-CAS, China 5 th FCPPL workshop.

CSR-External-Target-Facility Experiment (CEE) Nu Xu (许怒) (1) College of Physical Science & Technology, Central China Normal University, China.

Isochronous mass measurements of 58 Ni projectile fragments at CSRe Xinliang Yan Precision nuclear spectroscope group Institute of Modern Physics, Chinese.

Beta decay spectroscopy studies of novae and x-ray bursts

Alexander Herlert, CERN (PH-SME-IS)

THE APPLICATION OF TRACKER WITH SA IN ALIGNMENT OF HIRFL-CSR

Finnish participation at ISOLDE

Mass Measurements Lecture 1 – October 7, 2015

Isochronous Mode of the CR

Search for unbound excited states of proton rich nuclei

Study of SHE at the GSI – SHIP

Masses of noble gases David Lunney CERN contact: Sarah Naimi, CSNSM

Precision Mass Measurements of Short-lived Nuclei at CSRe-Lanzhou

Institut de Physique de Rennes, Université de Rennes I, Rennes

Nuclear masses of neutron-rich nuclei and symmetry energy

Status of the A=56, 64, and 68 X-ray burst waiting points

Cluster structure of excited 9Li

Electronic Structure Work through this tutorial in sequence, or go directly to the section required using the links below. Use the ‘home’ button (to.

Hadron Programs at HIRFL-CSR

Nucleosynthesis and formation of the elements

Particle Accelerators in China Particle Accelerator Branch, Chinese Physics Society The China Association for Science and Technology P.O. Box 918, Beijing.

High-precision mass measurements of exotic nuclides:

Institut de Physique Nucléaire Orsay, France

4 Quantum Numbers (n, l, ml, ms)

An improved nuclear mass formula

Pulsed electron beam cooling experiments: data & preliminary results

Presentation transcript:

Mass Measurements of Short-lived Nuclei at HIRFL-CSR INPC2013, June 6, 2013, Florence Mass Measurements of Short-lived Nuclei at HIRFL-CSR WANG Meng Institute of Modern Physics, Chinese Academy of Sciences Lanzhou, China

Outline 1.Motivation 2.Experiments at HIRFL-CSR principle, facility, procedure, data analysis, … 3.Results and discussion rp-process, IMME…

Nuclear mass E = mc2 Nuclear physics Nuclear mass Atomic physics Nuclear astrophysics Atomic energy Fundamental symmetries Metrology ….. Nuclear mass Binding energy

Nuclear mass

Experiment: Principle ToF Injection

Experiment: Principle ToF Injection Isochronous Mass Spectrometry (IMS mode)

Introduction: facility HIRFL (Heavy Ion research facility in Lanzhou) SSC(K=450) 100 AMeV (H.I.), 110 MeV (p) SFC (K=69) 10 AMeV (H.I.), 17~35 MeV (p) CSRe RIBLL1 RIBs at tens of AMeV RIBLL2 RIBs at hundreds of AMeV CSRm 1000 AMeV (H.I.),  2.8 GeV (p) HIRFL (Heavy Ion research facility in Lanzhou)

Experiment DT Detector

Procedure of Data analysis Ions Identification Signals in Oscilloscope Simultion. Exp. P2

78Kr beam: Revolution Time Spectrum

58Ni beam: Revolution Time Spectrum 34Ar, 51Co: same m/q

Time-Amplitude identification: 51Co

Mass Excess M/q = a＋ b T +c T 2 + d T 3 78Kr beam 58Ni beam X.L. Tu etal., PRL 106, 112501 (2011) X.L. Tu et al., NIMA A 654, 213 (2011) Y.H. Zhang et al., PRL 109,102501 (2012) X.L. Yan et al. ApJ 766, L8 (2013)

Results and Discussion Tz=-1/2, ( 78Kr Beam) Tz= -1, -3/2, ( 58Ni Beam)

Test the Isospin Multiplet Mass Equation N = Z (A,T,Jp) Degenerate if no charge-dependent Interaction, and DnH corrected for. - 3/2 - 1/2 + 1/2 + 3/2 Charge-dependent effects Tz - 3/2 g.s - 1/2 IAS + 1/2 IAS Proton + 3/2 g.s Neutron + d(A,T)Tz3 or + e(A,T)Tz4 M(A,T,Tz)=a(A,T)+b(A,T)Tz+c(A,T)Tz2 Any charge-dependent effects are two body interactions and be regarded as a perturbation.

Test the IMME in fp shell nuclei M(A,T,T3)=a(A,T)+b(A,T)T3+c(A,T) T32 + d(A,T)T33 N=Z ? ? ? ?

Test the IMME in fp shell nuclei d coeficients increase gradually up to A=53 for which d is 3.5s deviated from zero. Y.H.Zhang et al., PRL 109, 102501 (2012)

Rp-process: 64Ge: waiting point? X-ray burst model calculations with the new mass excess of 65As suggest that the majority of the reaction flow passes through 64Ge via proton capture, indicating that 64Ge is not a significant rp-rocess waiting point. X.L.Tu et al., PRL 106, 112501 (2011)

Rp-process: Sc-Ca cycle Measurement of the 45Cr mass and the Sc-Ca cycle in X-ray bursts X.L. Yan et al., APJ, 766 (2013) L8.

Other measurements 86Kr, 112Sn

Thank you for your attention! CSRe Collaboration H. S. Xu, M. Wang, Y. H. Zhang, X. L.Tu, X. L. Yan, X. H. Zhou,Y. J. Yuan, J. W. Xia, J. C. Yang, X. C.Chen, G. B. Jia, Z. G. Hu, X. W. Ma, R. S. Mao, B. Mei, P. Shuai, Z. Y. Sun, S. T. Wang, G. Q. Xiao, X. Xu, Y. D. Zang, H. W. Zhao, T. C. Zhao, W. Zhang, W. L. Zhan (IMP-CAS, Lanzhou, China) Yu.A. Litvinov, S.Typel (GSI, Darmstadt, Germany) K. Blaum (MPIK, Heidelberg, Germany) Y. Sun (Shanghai Jiao Tong University, Shanghai, China) H. Schatz, B. A. Brown (MSU, USA) G. Audi (CSNSM-IN2P3-CNRS, Orsay, France) T. Yamaguchi (Saitama University, Saitama, Japan} T. Uesaka, Y. Yamaguchi (RIKEN, Saitama, Japan) Thank you for your attention!

Mass measurement results at CSRe-Lanzhou B. Mei et al., NIMA A 624, 109 (2010) X.L. Tu etal., PRL 106, 112501 (2011) X.L. Tu et al., NIMA A 654, 213 (2011) Y.H. Zhang et al., PRL 109, 102501 (2012) X.L. Yan et al. Astrophys. J. Lett. 766 (2013) L8 53Ni, 65As, 45Cr Measured for the first time: 16 Precision improved 27

Experiment: 58Ni beam Dec. 2010 Feb. 2011 Magnetic field stability was improved Dec. 2010 Feb. 2011

Results X.L. Tu, M. Wang et al., NIM A 654, 213 (2011) Mass excess (keV) 33Cl -20993(7) 35Ar -23052(4) 37K -24808(6) 39Ca -27273(6) 41Sc -28635(11) 45V -31881(9) 47Cr -34562(8) 49Mn -37642(11) 51Fe -40192(11) 53Co -42647(17) 55Ni -45343(17) 57Cu -47294(40) 59Zn -47225(27) 61Ga -47184(55) 63Ge -46921(37) 65As -46937(85) 67Se -46580(67) 71Kr -46320(141) X.L. Tu, M. Wang et al., NIM A 654, 213 (2011)

Impact on the rp-process of x-ray bursts X.L. Tu etal., PRL 106, 112501 (2011) 2s Effective half-life of 64Ge Light curve of Type I x-ray burst Sp(65As) = -90 (85) keV 1s 89%–90% of the reaction flow passes through 64Ge via proton capture indicating that: 64Ge is not a significant rp-process waiting point. Abundance of burst ashes

Inpact of the 45Cr mass on the Sc-Ca cycle AME03 up limit >>> Sp+3s X. L. Yan et al. 2013 ApJ 766 L8 AME03 low limit >>> Sp-3s