sPHENIX bulk physics topical group

[Hao-Ren Jheng <hrjheng AT mit.edu>]

Dear all,

Please find below the current draft of the abstract for a poster presentation in QM2023 on measuring charged-particle multiplicity with the tracklet method.

Any comments or suggestions would be welcome and appreciated.

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Title: Charged-particle multiplicity measurement in Au-Au collisions at \sqrt{s_{NN}} = 200GeV with sPHENIX at RHIC

Abstract: sPHENIX, the first detector to be built at the Relativistic Heavy-Ion Collider (RHIC) in over two decades, will bring unprecedented measurement capabilities previously unavailable within the energy reach of RHIC. One of the initial physics measurements to be performed by sPHENIX is the charged-particle multiplicity, which utilizes the tracklet analysis method with the cluster information collected by the Monolithic-Active-Pixel-Sensor-based Vertex detector (MVTX). This measurement serves to directly demonstrate, based on real collision data, that the MVTX readout and clustering are operational. Additionally, this analysis technique provides an alternative diagnostic tool for detector alignment and vertex finding, both of which are critical components of the tracking system that will enable the entire physics program of sPHENIX. 

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Best,

Hao-Ren

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