[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Thu 2011-07-14 at 14:00

Location:  Auditorium          

Speaker:   Grigory Rogachev (Florida State University)

Title:     Structure of light nuclei studied via resonance scattering

Abstract: Significant advances have been made toward achieving the long-sought-after dream of describing properties of nuclei starting from realistic nucleon-nucleon interactions in the last decade. Development of novel theoretical approaches, such as Green Function Monte Carlo [1] and Large Basis No-Core Shell Model [2] allowed for ab initio studies of nuclei with less than 16 nucleons. Experimental verification of the predictions made by these theories for the wide range of isotopes, including those with large excess of protons or neutrons, is crucial for further progress. Properties of neutron deficient isotopes of 14F and 8B, that were studied using resonance scattering of protons of 13O and 7Be respectively [3,4], will be discussed and compared to the predictions of the ab initio approaches. The exotic isotope of helium, 9He, represents a curious case of stark disagreement between the predictions of modern theories and what is believed to be the experimental knowledge of this nucleus. This situation will be reviewed and the ways to improve experimental understanding of 9He will be suggested.

[1] S.C. Pieper, et al., Phys. Rev. C66 (2002) 044310.
[2] P. Navratil and B. Barrett, Phys. Rev. C57 (1998) 3119.
[3] V.Z. Goldberg, et al., Phys. Lett. B 692, (2010) 307.
[4] J.P. Mitchell, et al., Phys. Rev. C 82, (2010) 011601(R).

Stimulants available 15 minutes before the talk.

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