sPHENIX is a new detector at RHIC.

[Marzia Rosati <marziarosati AT gmail.com>]

The speakers’ Bureau is submitting two talk abstracts on behalf of the Collaboration and will select speakers upon acceptance. Abstracts are below for your convenience. If you have comments/suggestions please email me by the end of TODAY

Best regards

Marzia

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Heavy Flavor and Quarkonium Capabilities of the sPHENIX experiment

The sPHENIX detector at BNL’s Relativistic Heavy Ion Collider (RHIC) will measure a suite of unique Heavy Flavor and Upsilon observables with unprecedented statistics and kinematic reach at RHIC energies. The tracking detectors are a monolithic active pixel sensor based vertex detector (MVTX), a silicon strip detector called the Intermediate Tracker (INTT), and a compact, continuous readout gas electron multiplier based time projection chamber (TPC). The MVTX will provide a precise determination of the impact parameter of tracks relative to the primary vertex in high multiplicity heavy ion collisions. These new capabilities will enable precise measurements of quarkonium and open heavy flavor observables, covering an unexplored kinematic regime at RHIC. The physics program, its potential impact, and recent detector development will be discussed in this talk.

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Jet physics measurements in sPHENIX

The sPHENIX detector at the BNL Relativistic Heavy Ion Collider (RHIC) uses a combination of electromagnetic calorimetry, hermetic hadronic calorimetry, precision tracking, and the ability to record data at high rates without trigger bias to make pioneering measurements of jets, jet substructure, and jet correlations. Jet observables are a particularly useful probe of the Quark Gluon Plasma (QGP) formed in heavy-ion collisions since the hard scattered partons that fragment into final state jets are strongly quenched through interactions with the medium they traverse. These measurements will have a kinematic reach that not only overlaps that of similar studies at LHC, but extends them into a new, low-pT regime where quenching effects are large. Thus the sPHENIX physics program, starting in 2023, can answer fundamental questions about the parton energy loss process and the underlying nature of the QGP. This talk will give an overview of the status of jet reconstruction and performance within sPHENIX, and the envisioned jet physics program.