sPHENIX is a new detector at RHIC.

[Christine Nattrass <saccharomyces.cerevisae AT gmail.com>]

    Excellent!  Let me please ask the authors to prepare HEPData
    entries.  If you need help, let me know - I may have undergraduates
    who could help, but we would need the raw data points.  The HEPData
    entry is a product which is reviewed by the IRC with the paper.
Greetings,
Dr. Christine Nattrass
--
she, her, hers
Professor
Undergraduate Program Director
Completed Tier 2 Safe Zone training
Physics Department
University of Tennessee, Knoxville
Office:  SERF 609
Office Hours:  by appointment
Address:
1408 Circle Drive
Knoxville, TN 37996
phone number at UTK: (865) 974-6211
http://nattrass.utk.edu

On 3/27/25 15:43, Megan Connors wrote:

Dear all,

I am excited to share that I just sent the announcement below that we will be submitting ppg02 and ppg03 for publication in one week's time to RHIC leadership. Congratulations to all!!

Best,

-Megan

---------- Forwarded message ---------
From: Megan Elizabeth Connors <mconnors AT gsu.edu>
Date: Thu, Mar 27, 2025 at 3:41 PM
Subject: First sPHENIX papers ready for submission: "Measurement of the transverse energy density in Au+Au collisions at 200 GeV with the sPHENIX detector" and "Measurement of charged hadron multiplicity in Au+Au collisions at 200 GeV with the sPHENIX detector"
To: Frank Geurts <geurts AT rice.edu>, akiba AT bnl.gov <akiba AT bnl.gov>, Deshpande, Abhay <abhay AT bnl.gov>, Ruan, Lijuan <ruan AT bnl.gov>
Cc: Huang, Jin <jhuang AT bnl.gov>

Dear Abhay, Akiba-san, Frank, and Lijuan,

It is with great pleasure that we announce the sPHENIX collaboration's intention to submit our inaugural physics papers in approximately one week.

Target journal: PRC

                  Paper 1: "Measurement of the transverse energy density
                  in Au+Au collisions at √s NN = 200 GeV with the
                  sPHENIX detector"
                
                  
                
                
                  Abstract: This paper reports measurements of the
                  transverse energy per unit pseudorapidity (dET/dη)
                  produced in Au+Au collisions at √sNN = 200 GeV,
                  performed with the sPHENIX detector at the
                  Relativistic Heavy Ion Collider (RHIC). The results
                  cover the pseudorapidity range |η| < 1.1 and
                  constitute the first such measurement performed using
                  a hadronic calorimeter at RHIC. Measurements of dET/dη
                  are presented for a range of centrality intervals and
                  the average dET/dη as a function of the number of
                  participating nucleons, Npart, is compared to a
                  variety of Monte Carlo heavy-ion event generators. The
                  results are in agreement with previous measurements at
                  RHIC, and feature an improved granularity in η and
                  improved precision in low-Npart events.
                
                  
                
                
                  Target Journal: JHEP
                
                  
                
                
                  Paper 2: 
                
                  "Measurement of charged hadron multiplicity in Au + Au
                  collisions at  √s NN= 200 GeV with the sPHENIX
                  detector"
                
                  
                
                
                  The pseudorapidity distribution of charged hadrons
                  produced in Au + Au collisions at a
                
                  center-of-mass energy of √s NN = 200 GeV is measured
                  using data collected by the sPHENIX detector. Charged
                  hadron yields are extracted by counting cluster pairs
                  in the inner and outer layers of the Intermediate
                  Silicon Tracker, with corrections applied for detector
                  acceptance, reconstruction efficiency, combinatorial
                  pairs, and contributions from secondary decays. The
                  measured distributions cover |η| < 1.1 across
                  various centralities, and the average pseudo-rapidity
                  density of charged hadrons at mid-rapidity is compared
                  to predictions from Monte Carlo heavy-ion event
                  generators. This result, featuring full azimuthal
                  coverage at mid-rapidity, is consistent with previous
                  experimental measurements at the Relativistic Heavy
                  Ion Collider, thereby supporting the broader sPHENIX
                  physics program
                
                  
                
                
                  Best regards,
                
                  
                
                
                  Jin & Megan

*******************************

Dr. Megan E. Connors

She/her/hers

Associate Professor

Department of Physics and Astronomy

Georgia State University

********************************

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