26–29 Mar 2012
Aula Magna, Faculty of SMFN
Europe/Rome timezone

Multi-nucleon transfers using two-neutron halo 6He on 12C at 30 MeV using the SHARC and TIGRESS arrays at TRIUMF ISAC-II

27 Mar 2012, 09:50
20m
Aula Magna, Faculty of SMFN

Aula Magna, Faculty of SMFN

<a target="_blank" href=http://www.smfn.unipi.it/Informazioni/mappa.aspx>Facoltà di Scienze Matematiche, Fisiche e Naturali</a> Largo Bruno Pontecorvo, 3 I-56127 Pisa (Italy)
Talk Session 5

Speaker

F. Sarazin (Colorado School of Mines)

Description

The 12C(6He,4He)14C and 12C(6He,8Be)10Be multi-nucleon transfer reactions are studied at the TRIUMF ISAC-II facility using SHARC (Silicon Highly-segmented Array for Reactions and Coulex), a compact charged particle silicon detector array, together with TIGRESS (TRIUMF-ISAC Gamma-Ray Escape Suppressed Spectrometer), a high-efficiency germanium γ-ray detector array. The (6He,4He) transfer reaction is studied to investigate its possible advantages over (t,p) as a surrogate reaction for two-neutron transfer in a well-known (t,p) case [1]. Due to the close proximity of the 14C excited states, charged particle – gamma coincidences are necessary and obtained through the powerful combination of SHARC and TIGRESS. The (6He,8Be) transfer reaction on 12C is suggested to be a two-proton transfer [2], yet another possibility is that it actually is an alpha transfer from 12C on 6He. Such a mechanism could provide additional insights on the 3α structure of 12C with possible nuclear astrophysics implications. This presentation will discuss the preliminary results obtained in both cases, as well as elastic and inelastic scattering data. [1] F.Ajzenberg-Selove et al., Phys.Rev.C17, 1283 (1978); [2] M.Milin et al., Phys.Rev.C70, 044603 (2004)

Primary author

F. Sarazin (Colorado School of Mines)

Co-authors

A. Chester (Simon Fraser University) A. Garnsworthy (TRIUMF) A.D. Varela (University of Guelph) B. Baartman (Simon Fraser University) C. Andreoiu (Simon Fraser University) C.Aa. Diget (University of York) D. Cross (Simon Fraser University / TRIUMF) D. Di Valentino (Carleton University) D. Smalley (Colorado School of Mines) E. Paul (University of Liverpool) E. Rand (University of Guelph) E. Tardiff (TRIUMF) G. Hackman (TRIUMF) H. Al-Falou (TRIUMF) H.C. Boston (University of Liverpool) J. Rees (University of Liverpool) J.C. Blackmon (Louisiana State University) M. Pearson (TRIUMF) N. Orce (TRIUMF) N.A. Orr (University of Caen / ISMRA) P. Adsley (University of York) R. Kshetri (Simon Fraser University) R.M. Churchman (TRIUMF) S. Chagnon-Lessard (University of Guelph) S. Sjue (TRIUMF) S. Williams (TRIUMF) S. Yates (University of Kentucky) S.P. Fox (University of York) U. Hager (Colorado School of Mines) W.N. Catford (University of Surrey)

Presentation materials