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A fair number of results from GSI Structure and Reactions of Exotic Nuclei Pisa, 24-26 February 2005.

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Presentation on theme: "A fair number of results from GSI Structure and Reactions of Exotic Nuclei Pisa, 24-26 February 2005."— Presentation transcript:

1 A fair number of results from GSI Structure and Reactions of Exotic Nuclei Pisa, February 2005

2 A FAIR number of results from GSI Structure and Reactions of Exotic Nuclei Pisa, February 2005

3 Be + n 6 He + 4 He n m 2 H -- 3 He -- 1 H H 12.3 y 4 He -- 5 He unbound 6 He 808 ms 7 He unbound 8 He 119 ms 9 He unbound 7 Li -d 8 Li 840 ms 9 Li 179 ms 10 Li unbound 11 Li 8.5 ms 6 Li -- Pisa, Feb. 24, 2005

4 F. Ajzenberg-Selove, NPA490 (1988) 1 B GT = 4.75 Pisa, Feb. 24, 2005

5 Tanihata et al., PLB 160 (1985) He Pisa, Feb. 24, 2005

6 6 He Neutron Halo Borromean Pisa, Feb. 24, 2005

7 E d (keV) Intensity (decay -1 MeV -1 ) He 6 Li +d Beta-Delayed Deuterons M.J.G. Borge et al., Nucl. Phys. A560 (1993) 664 M.V. Zhukov et al., PRC47 (1993) 2937 D. Baye et al., Prog. Th. Phys. 91 (1994) 271 F.C. Baker, Phys. Lett. B 322 (1994) 17 Anthony et al., PRC 64 (2002) Q d = – S 2n Mev Pisa, Feb. 24, 2005

8 6 He Spin Alignment 6 He Spin Alignment 5 He n2n2 p( 5 He)= p + p n2 = -p n1 L.V. Chulkov et al., PRL 79 (1997) 201 GSI Pisa, Feb. 24, 2005

9 Two-neutron exchange in the 6 He+ 4 He reaction DUBNA G.M. Ter-Akopian et al., Phys. Lett. B 426 (1998) 251 Yu. Ts. Oganessian et al., PRL 82 (1999) 4996 Pisa, Feb. 24, 2005

10 6 He beam 36 MeV/u 240 MeV/u JINR, Dubna GSI, Darmstadt 1 H( 6 He,pp) 5 H One-proton knockout A.A. Korsheninnikov et al., PRL87(01) M. Meister et al., NPA 723(03)13 Pisa, Feb. 24, 2005

11 6 He U R. Raabe, J.L. Sida et al. Nature 431 (2004) 823 Pisa, Feb. 24, 2005

12 CERN: -beam baseline scenario PS Decay Ring ISOL target & Ion source SPL Cyclotrons, linac or FFAG Decay ring Brho = 1500 Tm B = 5 T L ss = 2500 m SPS ECR Rapid cycling synchrotron Nuclear Physics 6 He 6 Li + e - + _ Pisa, Feb. 24, 2005 C. Volpe, Proc. INPC2004

13 Experimental Studies at the Driplines Pisa, Feb. 24, 2005

14 N=16 A. Ozawa et al.,, PRL 84 (2000) 5493 N=6, 16 T. Otsuka et al., PRL 87(01) Pisa, Feb. 24, 2005

15 Light dripline nuclei N=6 N=16 7 H unbound Pisa, Feb. 24, 2005

16 s 1/2 d 5/2 d 3/2 fp 20 d 5/2 n p O ( 29 Ne) empty D. Cortina-Gil, et al. PRL 93 (2004) GSI 19 O 20 O 21 O 22 O 23 O 24 O N =16 GANIL N =14 Stanoiu et al., PRC 69 (04) Pisa, Feb. 24, 2005 S=0.97(19)

17 6 He 806 ms 8 He 119 ms 7 He 806 ms 9 He 806 ms 9 Li 179 ms 10 Li 806 ms 11 Li 8.5 ms 11 Be 13.8 s 12 Be 23.6 ms 14 Be 4.35 ms 13 Be 806 ms V nn V Cn Unbound Bound N=8 Pisa, Feb. 24, 2005

18 H. Simon et al., PRL 83 (1999) 496 (1s 1/2 ) 2 = 45(10) % GSI, 287 MeV/u 11 Li Pisa, Feb. 24, 2005

19 ( 12 Be, 11 Be+ ) Spectroscopic factors Navin et al. PRL 85(00)266 Deformation 12 Be (p,p) 12 Be*(2 + ) = 2.00(23) fm Iwasaki et al., PLB 481 (00) 7 Breakdown of the N=8 shell closure Low-lying 1 - state B(E1) = 0.051(13) e 2 fm 2 Iwasaki et al., EPJ A13 (02) MeV MSU (1s 2 +0d 2 ) RIKEN Pisa, Feb. 24, 2005

20 Shimoura et al., PLB 560 (2003) 31 Isomeric 0 + state at 2.24 MeV 12m Be 12 Be*(2 + ) 12 Be RIKEN Pisa, Feb. 24, 2005

21 0 Relative velocity Chen et al., PLB 505(2001)21 Simon et al. E r =0.68(10) MeV 9 Li(d,p) 10 Li E r = 0.77(24) MeV Santi et al., PRC 67(03) REX ISOLDE Pisa, Feb. 24, 2005

22 9 He 28 MeV/u 11 Be ( 11 Be, 8 He+n) Pisa, Feb. 24, 2005

23 The N=7 Isotones Pisa, Feb. 24, 2005

24 6 He 806 ms 8 He 119 ms 7 He 806 ms 9 He 806 ms 9 Li 179 ms 10 Li 806 ms 11 Li 8.5 ms 11 Be 13.8 s 12 Be 23.6 ms 14 Be 4.35 ms 13 Be 806 ms ? C. Forssén et al., NPA 706 (02) 48 Borromean Five-body Pisa, Feb. 24, 2005

25 13 Be s-wave resonance ? Pisa, Feb. 24, 2005

26 A. Bonaccorso, ENAM 2004 and IFUP-TH 29/2004 Pisa, Feb. 24, 2005

27 10 Be a 9 Li 178 ms 8 He 119 ms 7 H unbound Zhukov et al., PRC 50 (94) R1 COSMA Valence neutrons in the p 3/2 shell Korsheninnikov et al. PRL 90(03) Pisa, Feb. 24, 2005

28 The 6 He (2 + ) +2n component in 8 He mb Markenroth et al., NPA679 (01) % 6 He(2 + ) +2n(p 3/2,p 1/2 ) Korshenninikov et al., PRL 90(03) He+ 4 He Wolski et al., NPA 701 (02) 29c Markenroth et al., NPA 679 (01) 462 Pisa, Feb. 24, 2005

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30 C Pb R=0.085 R=0.13 D. Cortina-Gil et al., NPA 720(2003) 3 GSI 936 MeV/u 8 B Pisa, Feb. 24, 2005

31 8B8B C and Pb targets. Combined data give 13.3(2.2) % for the 7 Be*( 1/2 - ) p( 3/2 - ) component in the 8 B ground state wavefunction D. Cortina et al., PLB 529(2002) 36 (C) and NPA 720(2003) 3 (C, Pb) Pisa, Feb. 24, 2005

32 6 He(240 MeV/u) + Pb 1 – 3 MeV Pisa, Feb. 24, 2005 Danilin et al., NPA 632(98) 383

33 Pisa, Feb. 24, 2005 Danilin et al., NPA 632(98)

34 11 Li: + 30 % Pisa, Feb. 24, 2005 Ewald et al., PRL 93 (04)113002

35 Pisa, Feb. 24, 2005 S 245

36 S245 beams and identified reaction products Pisa, Feb. 24, 2005

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39 ...independent of the value which, after a possible confirmation, may be attributed to the theory of relativity and gravitation give the prize, which for for his contributions to the theoretical physics and especially for his discovery of the law for the photoelectric effect. Pisa, Feb. 24, 2005

40 From Remembering miss Meitner by Robert Marc Friedman played during INPC2004, Göteborg, June 27- July Inger Hayman as Lise Meitner...How could one woman stop them? The future was theirs. By then science was no longer what it had once been. Money, fame, prizes, and intrigues – that was not what I devoted my life to. I gladly gave up much for that which I love most. Physics is my great love. My only love. It is the work itself… to work together, to be part of a community. What matters most is the beauty of the results; the respect we share. I would do it all over again and again and again. I am lucky. I participated in a great adventure…. to research… to discover… And I became – a snow angel!

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