Signatures of chiral symmetry restoration in dilepton production

6 Nov 2019, 17:00
20m
Ball Room 3 (Wanda Reign Wuhan Hotel)

Ball Room 3

Wanda Reign Wuhan Hotel

Oral Presentation Electromagnetic probes Parallel Session - EM probes II

Speaker

Chihiro Sasaki

Description

We study the structural change of the vector spectral function and integrated production rates
of dileptons in the presence of the chiral mixing induced exclusively at finite density. The mixing
produces multiple bumps and peaks around the vacuum masses of the rho, omega and phi resonances in the spectral function. The arising modifi?cation becomes pronounced when the mass difference between parity partners decreases. In particular, the emergent peaks around the vacuum phi meson in the production rates serves as an excellent signature of the partially-restored chiral symmetry in heavy-ion collisions.

Reference:
[1] C. Sasaki, arXiv:1906.05077.

Primary author

Presentation materials