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Zapraszamy na seminarium 4.10.2022

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday, 

October 4 at 12:15, which will be given by

Kayman Jhosef Carvalho Gonçalves (Campinas University)


“Spin alignment of vector mesons as a probe of spin hydrodynamics and freeze-out“

Abstract: We argue that a detailed analysis of the spin alignment of vector mesons can serve as a probe of some aspects of spin dynamics in the vortical fluid for which there have been quite a few theoretical developments but relatively little phenomenology: The degree of relaxation between vorticity and parton spin polarization, and the degree of coherence of the hadron wavefunction at freeze-out. We show, using a coalescence model, that local spin density and vorticity impact the hadron wavefunction in different ways, and this is much more straightforward to disentangle for a vector meson than for a spin 1/2 baryon. We comment on the relevance of this issue for the current lack of consistency between experimental data on Lambda polarization and K*, phi spin alignment. Based on https://arxiv.org/abs/2104.12941

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.