[Theory-seminars] Theory Seminar Tomorrow - Christian Drischler

[Caroline Silva Rocha Costa]

Dear all,

Tomorrow, at 1pm EDT, we will have a hybrid seminar given by Christian Drischler of Ohio University in CC L102 and on the Zoom for Government link:

https://jlab-org.zoomgov.com/j/1613086127?pwd=YU56QnM3OFNEdTBnYmZsSXZ5SDFKdz09


Please see below for the title and abstract.


Theory Seminar: March 18th, 1pm EDT (hybrid)


Speaker: Christian Drischler (Ohio University)


Title: Applications of Bayesian uncertainty quantification to microscopic nuclear matter calculations


Abstract: In recent years, significant advances have been made in constraining the dense matter equation of state (EOS). These advances come from multi-messenger astronomy, nuclear forces derived from chiral effective field theory (EFT) and their implementation in ab initio many-body frameworks, Bayesian quantification of theoretical uncertainties, and experimental campaigns such as PREX-II and CREX at Jefferson Laboratory. However, many key questions remain, especially regarding the composition and EOS of the dense matter in the inner cores of heavy neutron stars.


In this talk, I will present several applications of Bayesian uncertainty quantification to microscopic predictions of infinite nuclear matter. First, I will summarize recent chiral EFT-based calculations of low-density nuclear matter and their implications for the neutron star structure. Second, I will discuss rigorous benchmarks of nuclear saturation properties of chiral interactions against various constraints from density functional theory (DFT). Third, I will demonstrate the efficacy of Bayesian model mixing (BMM) in combining EOS predictions from chiral EFT at low and perturbative QCD at high densities to construct globally predictive, microscopic EOS models that cover all densities probed by neutron stars.


See you on Monday.


Best regards,

Caroline, Joe, and Zheng-Yang

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