TORUS collaboration meeting, June 2012 Extracting structure information from data Filomena Nunes Michigan State University In collaboration with Anissa.

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Presentation transcript:

TORUS collaboration meeting, June 2012 Extracting structure information from data Filomena Nunes Michigan State University In collaboration with Anissa Bey (UT), Neelam Upadhyay (MSU) and Kate Jones (UT).

error bar on extracted structure from theory [Jenny Lee et al, PRL 2009] [Gade et al, PRL 93, ]

transfer data for Ar isotopes finite range adiabatic methods are used to obtained spectroscopic factors Faddeev calculations are used to determined error in reaction theory [FN, Deltuva, Hong, PRC83, (2011)]

transfer versus knockout [Jenny Lee et al, PRL 2009] [Gade et al, Phys. Rev. Lett. 93, ] [FN, Deltuva, Hong, PRC83, ]

transfer: DWBA versus ADWA Schmitt et al, PRL 108, (2012) DWBA entrance channel DWBA exit channel ADWA 10 Be(d,p) MeV

Re-analysis of 10 Be(d,p) 11 Be data error bars on spec. factors only from experiment need better understanding of errors associated with ADWA elastic scattering data analysis disconnected from (d,p) still inelastic data …

CDCC: choice of nucleon optical potentials Bey, Upadhyay, Nunes and Jones, prepar.

Elastic scattering: Chi^2 Bey, Upadhyay, Nunes and Jones, in preparation CH89 offers best fit with the exception of highest energy BG offers best overall match

Elastic scattering: continuum effects Bey, Upadhyay, Nunes and Jones, in preparation

CDCC: convergence check Bey, Upadhyay, Nunes and Jones, in preparation breakup transfer

Comparing CDCC, ADWA, DWBA for (d,p) Bey, Upadhyay, Nunes and Jones, in preparation

Reaction mechanism Bey, Upadhyay, Nunes and Jones, in preparation

Comparing (d,p) to data: with spin Bey, Upadhyay, Nunes and Jones, in preparation

Combined method: ANC and SF Bey, Upadhyay, Nunes and Jones, in preparation SF ANC

Transfer to the continuum Bey, Upadhyay, Nunes and Jones, in preparation

More data to come… Bey, Upadhyay, Nunes and Jones, in preparation 11 Be(d,p) 10 Be around 5 MeV/u: Spokesperson Fred Sarazin, to run in TRIUMF in July 56 Ni(d,n) 57 Cu around 70 MeV/u: Spokesperson Phil Woods, NSCL PAC Kr(d,p) 87 Kr around 70 MeV/u: Spokesperson Jolie Cizewski, NSCL PAC 2009

thankyou! collaborators: Anissa Bey and Kate Jones (Univ. Tennessee) June Hong(MSU), Arnas Deltuva (Lisbon), TORUS collaboration: Charlotte Elster (Ohio), Akram Mukhamedzhanov (Texas A&M), Ian Thompson (LLNL), Jutta Escher (LLNL) and Goran Arbanas (ORNL) Antonio Fonseca (Lisbon), Pierre Capel (Brussels) Ron Johnson and Jeff Tostevin (Surrey), This work was supported by DOE-NT, NNSA and NSF our group at MSU: Ngoc Nguyen, Muslema Pervin, Luke Titus, Neelam Upadhyay

reaction methods: CDCC versus Faddeev formalism Faddeev Formalism CDCC Formalism

CDCC model space Upadhyay, Deltuva and Nunes, PRC 85, (2012)

Faddeev calculations: details Upadhyay, Deltuva and Nunes, PRC 85, (2012)

Sensitivity to interactions At low energies, L dependence of NN interaction important At high energies, spin-orbit in optical potential important Upadhyay, Deltuva and Nunes, PRC 85, (2012)