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ESNT Workshop

ESNT Workshop. Mean Field and Beyond For Nuclear Reactions. Jan. 23-27, 2006. ESNT Workshop. Mean Field and Beyond For Nuclear Reactions. Jan. 23-27, 2006. What is ESNT ? « Espace de Structure Nucléaire Théorique » theoretical development in nuclear physics

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ESNT Workshop

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  1. ESNT Workshop Mean Field and Beyond For Nuclear Reactions Jan. 23-27, 2006

  2. ESNT Workshop Mean Field and Beyond For Nuclear Reactions Jan. 23-27, 2006

  3. What is ESNT ? • « Espace de Structure Nucléaire Théorique » • theoretical development in nuclear physics • theoretical support to experimental groups • When ? • Since 2004 • How ? • workshops (8) • visitors (2) • post-docs (first one next week) • institutions (CEA) • DAM/SPN, DSM/SPhT and SPhN

  4. Motivations to get the maximum of physics … …with the minimum of parameters

  5. Motivations • Nuclear reactions • elastic, inelastic, deep-inelastic, transfer, break-up, • fusion, fission… SPIRAL 2 • Whole nuclear chart • from light to superheavy elements • from proton to neutron drip lines • Fully microscopic theory • effective interaction (Skyrme, Gogny…) • Beyond mean-field • long range dynamical correlations • mixing of trajectories • Same formalism (and interaction) for structure and dynamics

  6. Present status (NOT EXHAUSTIVE !!!) • Mean-field for nuclear reactions • Time-Dependent Hatree-Fock theory • P.A.M. Dirac, Proc. Camb. Phil. Soc. 26, 376 (1930) • First application to nuclear physics • Y.M. Engel et al., NPA 249, 215 (1975) • P. Bonche, S. Koonin and J.W. Negele, PRC 13, 1226 (1976) • TDHF-3D calculations of nuclear reactions • H. Flocard, S.E. Koonin and M.S. Weiss, PRC 17, 1682 (1978) • K.-H. Kim, T. Otsuka and P. Bonche, JPG 23, 1267 (1997) • C. Simenel, P. Chomaz and G. de France, PRL 86, 2971 (2001); PRL 93, 102701 (2004) • small amplitude limit (QRPA) + DWBA • E. Khan, N. Sandulescu, N.V. Giai, M. Grasso, PRC 69, 014314 (2004) • Time-Independent Mean Field • B.G. Giraud, M.A. Nagarajan and I.J. Thomson, Ann. Phys. 152, 475 (1984) • no pairing (except QRPA)

  7. Present status (NOT EXHAUSTIVE !!!) • Beyond mean field for nuclear reactions • Extended TDHF • D. Lacroix, P. Chomaz and S. Ayik, PRC 58, 2154 (1998) • Time Dependent Density Matrix • S.J. Wang and W. Cassing, Ann. Phys. 159, 328 (1985) • M. Tohyama, PRC 36, 187 (1987) • Stochastic TDHF • P.G. Reinhard and E. Suraud, Ann. Phys. 216, 98 (1992) • O. Juillet and P. Chomaz, PRL 88, 142503 (1998) • Time Dependent Generator Coordinate Method • P.-G. Reinhard, R.Y. Cusson and K. Goeke, NPA 398, 141 (1983) • J.F. Berger, M. Girod and D. Gogny, NPA 428, 23c (1984) • H. Goutte, J.F. Berger, P. Casoli and D. Gogny, PRC 71, 024316 (2005)

  8. How to progress ? • To identify a community • conferences and workshops (ESNT, Trento) • collaborations • SPIRAL 2 Theory Group ? • What has been done in other fields ? • Agregats • Condensed matter • astrophysics (phenomenological interaction…) • Structure (Giant Resonances…) • Phenomenological approaches • Mathematics • Link to experiments • Which experimental observables ? • What can we learn from experiments ?

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