Search for the Chiral Magnetic Effect with Isobar Collisions at 200 GeV by the STAR Collaboration at RHIC

Name: Search for the Chiral Magnetic Effect with Isobar Collisions at 200 GeV by the STAR Collaboration at RHIC
Start: 2021-08-31T11:00:00-04:00
End: 2021-08-31T12:00:00-04:00
Location: No location set

Tuesday 31 Aug 2021, 11:00 → 12:00 US/Eastern

Description

The chiral magnetic effect (CME) is predicted to occur as a consequence of a local violation of $\cal P$ and $\cal CP$ symmetries
of the strong interaction amidst a strong magnetic field generated in relativistic heavy-ion collisions. Experimental manifestation of the CME involves a separation of positively and negatively charged hadrons along the direction of the magnetic field. Previous measurements of the CME-sensitive charge-separation observables remain inconclusive because of large background contributions. In order to better control the influence of signal and backgrounds, the STAR collaboration has performed a blind analysis of a large data sample of approximately 3.8 billion isobar {$^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr} collisions at the top RHIC energy. Prior to the blind analysis, the CME signatures were predefined as a significant excess of the CME-sensitive observables in Ru+Ru collisions over those in Zr+Zr collisions, owing to a larger magnetic field in the former. The findings from the isobar blind analysis will be reported in this seminar.

This seminar is also live streamed at:

https://www.youtube.com/channel/UCsIXTVyxg1qMWGUyKzsMFTA

Seminar recordings are available at:

https://bnl.zoomgov.com/rec/share/KangSkxy0pmPGE6qnAYCU42uecceukJQrDr6OlF6tevVdd3dMBlA5rRxybI2A7kn.pwrZy177Au6A6NXO

https://www.youtube.com/watch?v=wK-HC7DAFo4

Organised by

Evan Finch