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11Li Breakup on 208Pb at Energies Around the Coulomb Barrier

J. P. Fernandez-Garcia ; M. Cubero ; M. Rodriguez-Gallardo ; L. Acosta ; M. Alcorta ; M. A. G. Alvarez ; M. J. G. Borge ; L. Buchmann ; C. A. Diget ; H. A. Falou ; B. R. Fulton ; H. O. U. Fynbo ; D. Galaviz ; J. Gomez-Camacho ; R. Kanungo ; J. A. Lay ; M. Madurga ; I. Martel ; A. M. Moro ; I. Mukha ; Thomas Nilsson (Institutionen för fundamental fysik, Subatomär fysik) ; A. M. Sanchez-Benitez ; A. Shotter ; Olof Tengblad ; P. Walden ; N. Stern
Physical Review Letters (0031-9007). Vol. 110 (2013), 14,
[Artikel, refereegranskad vetenskaplig]

The inclusive breakup for the Li-11 + Pb-208 reaction at energies around the Coulomb barrier has been measured for the first time. A sizable yield of Li-9 following the Li-11 dissociation has been observed, even at energies well below the Coulomb barrier. Using the first-order semiclassical perturbation theory of Coulomb excitation it is shown that the breakup probability data measured at small angles can be used to extract effective breakup energy as well as the slope of B(E1) distribution close to the threshold. Four-body continuum-discretized coupled-channels calculations, including both nuclear and Coulomb couplings between the target and projectile to all orders, reproduce the measured inclusive breakup cross sections and support the presence of a dipole resonance in the Li-11 continuum at low excitation energy.



Denna post skapades 2013-05-13. Senast ändrad 2014-09-02.
CPL Pubid: 176803

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Fysik
Subatomär fysik
Kärnfysik
Lågenergifysik

Chalmers infrastruktur