Physics PAN Seminar by Prof. Sergei A. Voloshin (Wayne State University)

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Date: September 24, 2021
Time: 3:30 p.m. - 4:30 p.m.
Location: Virtual event
Category: Seminar

Physics PAN Seminar by Prof. Sergei A. Voloshin (Wayne State University)

Title: “Search for the Chiral Magnetic Effect: Recent results from isobar collisions at RHIC”

Sergei A. Voloshin for the STAR Collaboration

Abstract: The chiral magnetic effect (CME) is predicted to occur as a consequence of a local violation of P and 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 Ru+Ru (ARu = 96, ZRu = 44) and Zr+Zr (AZr = 96, ZZr = 40) 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. This presentation reports on the findings from the isobar blind analysis and their significance for the CME search in heavy- ion collisions.

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Meeting Recording:
https://wayne-edu.zoom.us/rec/share/3PGF2T2Oo8y_IITJJBjsmmPOX7YJvn-CYlJUAvTHgylFXRVVotKm9HpK_5QAInY0.m-TReE90alNIGATk

Slides:

https://waynestateprod-my.sharepoint.com/:b:/g/personal/gx1689_wayne_edu/Ef3I9YnpnZZPsH2DUhg1ARABCO_vR8oyAqjO289oLvnyZw?e=wA6IEF

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