Jet wake from linearized hydrodynamics

A bstract We explore how to improve the hybrid model description of particles originating from wake that a jet produced in heavy ion collision leaves droplet quark-gluon plasma (QGP) through which it propagates, using linearized hydrodynamics on background Bjorken flow. Jet energy and momentum loss described by become currents sourcing hydrodynamics. By solving hydrodynamic equations numerically, we investigate development dynamically evolving QGP, study effect viscosity, scrutinize energy-momentum conservation, check validity linear approximation. find works better viscous case because diffusive modes damp perturbation jet. calculate distribution Cooper-Frye prescription both transverse spectrum azimuthal angle are similar shape model. Their normalizations different momentum-rapidity analysis is more spread out, due sound modes. Since flow has no expansion, local boosts add into formula. After including effects this way, becomes harder: with momenta bigger than 2 GeV Although defer implementing Monte Carlo, as would be needed make quantitative comparisons data, gain qualitative sense may modify observables computing proxies for two example observables: lost recovered cone varying open angle, fragmentation function. added improves just way comparison data indicates needed. Our illuminates path improving model, highlighting need take account broadening spacetime rapidity particle production.