Y. Koma -- Heavy Quark Potentials in Lattice QCD

V. Dmitrasinovic --- DsJ*(2317), and DJ*(2308) as candidates for tetraquarks?

I asked the question: "What one thing would you like astrophysicists to talk away from your talk?"

Answer: The answer to this question is not clear at this point, but it may require 5-10 years to determine if the present work has implications for astrophysics.

In discussion, it was stated: We have seen three quark baryons (protons, neutrons) and q-qbar mesons, but multi-quark states are not observed and not well understood, and they may well exist. It therefore seems not unlikely that multiquark states are going to important at nuclear and super-nuclear density. Thus, to understand supernuclear density matter, we are going to need much work on multi-quark states.

There are some major uncertainties in this work. These include color confinement violation, which (with three colors) is expected; in tetraquarks, there are two color singlets; in pentaquarks, more, etc.... All color singlets may mix. Therefore al color eigenstates ought to be observable.

Y. Sekiguchi -- Formulation and application of general relativistic neutrino leakage scheme

K. Kotake -- Neutrino-driven explosion of massive stars

Kotake reviewed the multi-dimensional MHD with neutrino transport supernovae explosion simulations, and showed results from his own simulations.

Jeremiah Murphy - A Model for Gravitational Waves for Supernova Explosions

Jeremiah presented a model for the production of gravitational wave emission during a core collapse supernova, with which the detection of gravitational waves can be interpreted.

Afternoon Discussion

During afternoon discussion, some of the topics which were covered included the following.

Flow measurments. Danielewicz et al 2002 Science 298, 1592. K=167-210.

Mass, Radius and Temperature. Sanjay Reddy would like multiple measurements of compact object mass (to 10%), radius (10%) and the temperature.

Multi-object Monte Carlo. Ed Brown showed the recent analysis results of himself and Steiner, in which measurements of RXJ 1856, three globular cluster qLMXBs, are all used to constrain the dEOS.


Quark Matter Star Observables. Predictable observables: two branches in the mass radius realtionship of compact stars: there is the Hadronic branch, and quark star branch, and these are separated by about 2 km in radius, which means that radius measurements of precision better than 0.5 km are important.


Pasta Phases: how are we going to detect them? Nobody seems to know.

Ed Brown -- Nuclear Astrophysics in the Neutron Star Crust

Ed reviewed the entire crustal nuclear processes theory, showing the ability of analytic models to explain even more detailed theoretical predictions for the processes which take place in the crusts of neutron stars.

• Brown and Cumming
  
• Cooper, Steiner and Brown
  

One of the important conclusions of this work is that the final quiescent luminosity of the qLMXB, following thermal relaxation of the crust, is related to the temperature of the core, and the theoretical uncertainty is due to uncertainty in the composition of the crust (iron? or solar metalicity?), but this is only about a factor of two in temperature. Thus, the quiescent luminosities tell us the temperature of the neutron star core. Of course, if you know how much energy is deposited in the crust, and the heat capacity of the core, you can then calculate the neutrino losses in the neutron star.