Nuclear reactions studies in Spain (theory)

Preparing to load PDF file. please wait...

0 of 0
Nuclear reactions studies in Spain (theory)

Transcript Of Nuclear reactions studies in Spain (theory)

Nuclear reactions studies in Spain (theory)
Antonio M. Moro Muñoz Universidad de Sevilla

● Current groups working in nuclear reactions ● A flavour on recent research activities
✔ Developments in nuclear reaction theory ✔ Collaborations with experimental groups ● Challenges for the near future

Nuclear Reactions in Spain


Madrid Valencia



Theory: - Madrid (IEM, UCM) - Huelva (UHU) - Sevilla (USE)
Experiments: - Madrid (IEM) - Huelva - Santiago de Comp. - Sevilla (USE/CNA) - Valencia

Nuclear Reactions at Madrid (IEM/CSIC, UCM)
(E. Garrido, R. Álvarez-Rodríguez, R. de Diego (*), C. Redondo(*)
Few-body structure and reactions:
• Bound and continuum states of three-body light nuclei (11Li, 12Be,...) • Few-body reactions at low energies of astrophysical interest
(α+α+α → 12C, α+α+n → 9Be) • Variational description of continuum states in terms of integral relations.

AAftfeterrththeeccoorereccoollalappssee, ,ththee tetemmpp8eB8erBeareatiustiusruerunenbinbionocucurnerndeadasseess, ,aannddfoforr
TThheettrripiplele--aalplphhaarreeaaccttioionnbbrrididggeesstthheeAA==55,,88ggaappaannddppeerrmmititss tthheeaappppeeaarraanncceeinintthheeUUnniviveerrsseeooffhheeaavvyynnuucclelei i

Direct versus sequential capture mechanism

11))SSeeqquueennttiaial:l: αα++αα→→88BBee**++γγ
88BBee**++αα →→1212CC 22))DDirireecctt:: αα++αα++αα→→1212CC++γγ

3-body problem → Faddeev equations

AA ddirireecctt ccaappttuurree mmeecchhaannisismm ccaann ininccrreeaassee tthhee rreeaaccttioionn rraattee uupp ttoo 77 oorrddeerrss ooff mmaaggnnitituuddee aatt loloww tteemmppeerraattuurreess. .

Nuclear Reactions at Seville (theory)
(M.V. Andrés, J.M. Arias, F. Barranco, J. Casal-Berbel (PhD),C. Dasso, J. GómezCamacho, J.A. Lay (PhD), A.M. Moro, G. Potel (*) J.M. Quesada, M. Rodríguez-Gallardo)
1) Developments in nuclear reaction theory ➔ Dispersive Lane-consistent optical potentials ➔ Resonant & non-resonant 2- and 3-body continuum of exotic nuclei ➔ Extension of CDCC method to 3-body nuclei and core excitation ➔ Two-particle transfer reactions
2) Theory support to experimental collaborations ➔ Sevilla-IEM-Huelva collaboration (CNA,TRIUMF, LLN, GANIL...) ➔ ISOLDE ➔ RIBRAS, ➔ etc

A Lane consistent optical model potential for nucleon induced reactions on actinides with full coupling
J. M. Quesada, Departamento de FAMN, Seville Roberto Capote, IAEA Nuclear Data Section, Vienna Efrem Soukhovitskii, Joint Institute for Energy and Nuclear Research, Minsk-Sosny, Belarus
Phenomenological potential with strong theoretical constraints : less parameters and enhanced predictability
Global fitting to the available exp. db: total xs, angular distributions, strenght functions.. The coupling scheme includes: All states bellow 1 MeV (17 for 238U) + 2 IAS states

Used in nuclear data evaluations
Included in RIPL: entries 2408, 2409, 5408, 5409, 5412
Tries 2408,5

Microscopic calculations of two-nucleon transfer
(P. Barranco (USE), G. Potel (USE), R. Broglia (Milan))
●●PPaairirininggccoorrrreelalattioionnss ●●RReeaaccttioionnmmeecchhaannisismm ((sseeqquueennttiaial lvvssssimimuultltaanneeoouuss)) ●●TTwwoo--ppaarrtticiclelessppeecc. .ffaaccttoorrss
ReactionsTheoryMadridReactions StudiesSpain