proceeding

Neutron single particle structure in 131Sn and the r-process

R. L. KozubDepartment of Physics , Tennessee Technological University , Cookeville , TN 38505 , USAA. S. AdekolaDepartment of Physics and Astronomy , Ohio University , Athens , OH 45701 , USADan BardayanPhysics Division , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USAJeff BlackmonDepartment of Physics , Lousiana State University , Baton Rouge , LA 70803 , USAK. Y. ChaeDepartment of Physics and Astronomy , University of Tennessee , Knoxville , TN 37996 , USAK. A. ChippsPhysics Department , Colorado School of Mines , Golden , CO 80403 , USAJ. A. CizewskiDepartment of Physics and Astronomy , Rutgers University , New Brunswick , NJ 08903 , USAL. EriksonPhysics Department , Colorado School of Mines , Golden , CO 80403 , USAR. HatarikDepartment of Physics and Astronomy , Rutgers University , New Brunswick , NJ 08903 , USAK. L. JonesDepartment of Physics and Astronomy , University of Tennessee , Knoxville , TN 37996 , USAW. KrólasInstitute of Nuclear Physics, Polish Academy of SciencesJ. F. LiangZ. MaDepartment of Physics and Astronomy , University of Tennessee , Knoxville , TN 37996 , USAC. MateiOak Ridge Associated Universities , Oak Ridge , TN 37833 , USAB. H. MoazenDepartment of Physics and Astronomy , University of Tennessee , Knoxville , TN 37996 , USAC. D. NesarajaPhysics Division , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USAS. D. PainPhysics Division , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USAD. ShapiraPhysics Division , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USAJ. F. ShrinerJr.Department of Physics , Tennessee Technological University , Cookeville , TN 38505 , USAM. S. SmithPhysics Division , Oak Ridge National Laboratory , Oak Ridge , TN 37831 , USAT. SwanDepartment of Physics and Astronomy , Rutgers University , New Brunswick , NJ 08903 , USA

2009en

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Litsenziya: cc-by-nc-sa

ABI

Annotatsiya

Recent calculations suggest that, at late times in the r-process, the rate of neutron capture by 130 Sn has a significant impact on nucleosynthesis.Direct capture into low-lying bound states is likely the dominant reaction in the r-process near the N=82 closed shell, so reaction rates are strongly impacted by the properties of neutron single particle states in this region.In order to investigate these properties, we have acquired (d,p) reaction data in the A~132 region in inverse kinematics using ~630 MeV beams (4.85 MeV/u for 130 Sn) and CD 2 targets.An array of Si strip detectors, including SIDAR and an early implementation of the new Oak Ridge Rutgers University Barrel Array (ORRUBA), was used to detect reaction products.Preliminary results for the 130 Sn(d,p) 131 Sn experiment are reported.

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DOI: 10.22323/1.053.0135

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