Thu·Jun 14, 2018Thursday·June 14, 2018

1. 01*

   Reply to Comment on "Sensitivity of $(d,p)$ reactions to high $n$-$p$ momenta and the consequences for nuclear spectroscopy studies

   G.W. Bailey · N.K. Timofeyuk🇬🇧 · J.A. Tostevin🇬🇧

   We point out that after presenting our results on high $n$-$p$ momentum sensitivity of the $(d,p)$ cross sections in [Phys. Rev. Lett. 117 162502 (2016)] the last paragraph of our Letter refers to a need of going beyond the leading order of Weinberg state treatment. This task could be achieved by using any method that can provide exact solution of the three-body problem. Deltuva [arXiv:1806.00298] uses Faddeev equations to study the NN-model dependence of the $(d,p)$ cross sections. His results are consistent with a new study performed at Surrey which is undergoing a reviewing process at Physical Review C. Both studies discuss the $n$-$p$ sensitivity within three-body $n+p+A$ models with $NN$-independent $N$-$A$ optical potentials. The sensitivity may reappear in many-body treatment of $(d,p)$ reactions, for example, due to the threshold position dependence.

   ↳ nucl-thnucl-ex0 citations
2. 02*

   Estimating nucleon substructure properties in a unified model of p-Pb and Pb-Pb collisions

   J. Scott Moreland🇺🇸 · Jonah E. Bernhard🇺🇸 · Steffen A. Bass🇺🇸

   We apply a well tested hybrid transport model, which couples viscous hydrodynamics to a hadronic afterburner, to describe bulk observables in proton-lead and lead-lead collisions at $\sqrt{s_{NN}}=5.02$ TeV. The quark-gluon plasma (QGP) initial conditions are modeled using the parametric TRENTO model with additional nucleon substructure parameters to vary the number and size of hot spots inside each nucleon, followed by a pre-equilibrium free streaming stage to match the full energy-momentum tensor of the initial state onto viscous hydrodynamics. Initial condition and QGP medium parameters, such as the temperature dependence of the QGP shear and bulk viscosities, are then calibrated using Bayesian parameter estimation to describe charged particle yields, mean $p_T$ and anisotropic flow harmonics of both collision systems in a single self-consistent framework. We find that the hybrid model provides a compelling, simultaneous description of both collision systems using appropriately chosen model parameters, and present new posterior estimates for the size and shape of the nucleon and temperature dependence of QGP shear and bulk viscosities.

   ↳ nucl-thnucl-exNPA(2019)·10 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.