Measurement of the transverse energy density in collisions at with the sPHENIX detector
M. I. Abdulhamid13, U. Acharya13, E. R. Adams7, G. Adawi13, C. A. Aidala26, Y. Akiba39, M. Alfred14, S. Ali13, A. Alsayegh10 et al. (sPHENIX Collaboration)
A. Alsayegh10, S. Altaf15, H. Amedi13, D. M. Anderson17, V. V. Andrieux15, A. Angerami21, N. Applegate17, H. Aso41, S. Aune6, B. Azmoun3, V. R. Bailey13, D. Baranyai9, S. Bathe2, A. Bazilevsky3, S. Bela22, R. Belmont33, J. Bennett15, J. C. Bernauer43, J. Bertaux37, R. Bi7, A. Bonenfant6, S. Boose3, C. Borchers13, H. Bossi25, R. Botsford22, R. Boucher11, A. Brahma13, J. W. Bryan35, D. Cacace3, I. Cali25, M. Chamizo-Llatas3, S. B. Chauhan35, A. Chen22, D. Chen43, J. Chen12, K. Chen5, K. Y. Chen30, K. Y. Cheng30, C.-Y. Chi8, M. Chiu3, J. Clement7, E. W. Cline43, M. Connors13, E. Cook15, R. Corliss43, Y. Corrales Morales25, E. Croft22, N. d'Hose6, A. Dabas13, D. Dacosta13, M. Daradkeh13, S. J. Das7, A. P. Dash4, G. David9,43, C. T. Dean25, K. Dehmelt43, X. Dong20, A. Drees43, J. M. Durham23, A. Enokizono39, H. Enyo39, J. Escobar Cepero13, R. Esha43, B. Fadem28, R. Feder3, K. Finnelli43, D. Firak43, A. Francisco6, J. Frantz35, A. Frawley11, K. Fujiki41, M. Fujiwara29, B. Garcia7, P. Garg43, G. Garmire15, E. Gentry7, Y. Go3, C. Goblin6, W. Goodman22, Y. Goto39, A. Grabas6, O. Grachov48, J. Granato22, N. Grau1, S. V. Greene47, S. K. Grossberndt2, R. Guidolini-Cecato3, T. Hachiya29, J. S. Haggerty3, R. Hamilton7, J. Hammond3, D. A. Hangal21, S. Hasegawa18, M. Hata29, W. He12, X. He13, T. Hemmick43, A. Hodges15, M. E. Hoffmann22, A. Holt14, B. Hong19, M. Housenga15, S. Howell43, Y. Hu20, H. Z. Huang4, J. Huang3, T. C. Huang32, D. A. Huffman22, C. Hughes17,22, J. Hwang19, T. Ichino41, M. Ikemoto29, D. Imagawa41, H. Imai41, D. Jah7, J. James47, H.-R. Jheng25, Y. Ji20, Z. Ji4, H. Jiang8, M. Kano29, L. Kasper47, T. Kato41, Y. Kawashima41, M. S. Khan13, T. Kikuchi41, J. Kim50, B. Kimelman47, H. T. Klest43, A. G. Knospe22, M. B. Knuesel7, H. S. Ko20, J. Kuczewski3, N. Kumar2, R. Kunnawalkam Elayavalli47, C. M. Kuo30, J. Kvapil23, Y. Kwon50, J. Lajoie34, J. D. Lang7, A. Lebedev17, S. Lee45, L. Legnosky43, S. Li8, X. Li23, T. Lian22, S. Liechty7, S. Lim38, D. Lis7, M. X. Liu23, W. J. Llope48, D. A. Loomis26, R.-S. Lu32, L. Ma12, W. Ma12, V. Mahaut6, T. Majoros9, I. Mandjavidze6, E. Mannel3, C. Markert46, T. R. Marshall4, C. Martin45, H. Masuda41, G. Mattson15, M. Mazeikis15, C. McGinn25, E. McLaughlin8, J. Mead3, Y. Mei20, T. Mengel7,45, M. Meskowitz22, J. Mills3, A. Milov49, C. Mironov25, G. Mitsuka40, N. Morimoto29, D. Morrison3, L. W. Mwibanda10, C.-J. Naïm43, J. L. Nagle7, I. Nakagawa39, Y. Nakamura41, G. Nakano41, A. Narde15, C. E. Nattrass45, D. Neff6, S. Nelson27, D. Nemoto41, P. A. Nieto-Marín17, R. Nouicer3, G. Nukazuka39, E. O'Brien3, G. Odyniec20, S. Oh20, V. A. Okorokov31, A. C. Oliveira~da~Silva17, J. D. Osborn3, G. J. Ottino20, Y. C. Ou32, J. Ouellette7, D. Padrazo, Jr.3, T. Pani42, J. Park7, A. Patton25, H. Pereira Da Costa23, D. V. Perepelitsa7, M. Peters25, S. Ping12, C. Pinkenburg3, R. Pisani3, C. Platte47, C. Pontieri3, T. Protzman22, M. L. Purschke3, J. Putschke48, R. J. Reed22, L. Reeves15, S. Regmi35, E. Renner23, D. Richford2,51, C. Riedl15, T. Rinn23, C. Roland25, G. Roland25, A. Romero Hernandez15, M. Rosati17, D. Roy42, A. Saed22, T. Sakaguchi3, H. Sako18, S. Salur42, J. Sandhu22, M. Sarsour13, S. Sato18, B. Sayki23, B. Schaefer22, J. Schambach34, R. Seidl39, B. D. Seidlitz8, Y. Sekiguchi39, M. Shahid13, D. M. Shangase26, Z. Shi23, C. W. Shih30, K. Shiina41, M. Shimomura29, R. Shishikura41, E. Shulga43, A. Sickles15, D. Silvermyr24, R. A. Soltz21, W. Sondheim23, I. Sourikova3, P. Steinberg3, D. Stewart48, S. Stoll3, Y. Sugiyama29, O. Suranyi2, W.-C. Tang30, S. Tarafdar47, E. Thorsland15, T. Todoroki40, L. S. Tsai32, H. Tsujibata29, M. Tsuruta41, J. Tutterow13, E. Tuttle22, B. Ujvari9, E. N. Umaka3, M. Vandenbroucke6, J. Vasquez3, J. Velkovska47, V. Verkest48, A. Vijayakumar15, X. Wang15, Y. Wang5, Z. Wang2, I. S. Ward22, M. Watanabe29, J. Webb3, A. Wehe15, A. Wils6, V. Wolfe22, C. Woody3, W. Xie37, Y. Yamaguchi40, Z. Ye20, K. Yip3, Z. You44, G. Young3, C.-J. Yu16, X. Yu12, X. Yu36, W. A. Zajc8, V. Zakharov43, J. Zhang12, and C. Zimmerli22 (sPHENIX Collaboration)
- 1Augustana University, Sioux Falls, South Dakota
- 2Baruch College, City University of New York, New York, New York
- 3Brookhaven National Laboratory, Upton, New York
- 4University of California, Los Angeles, California
- 5Central China Normal University, Wuhan, Hubei
- 6IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
- 7University of Colorado, Boulder, Colorado
- 8Columbia University, New York, New York
- 9Debrecen University, Debrecen, Hungary
- 10Florida Agricultural and Mechanical University, Tallahassee, Florida
- 11Florida State University, Tallahassee, Florida
- 12Fudan University, Shanghai
- 13Georgia State University, Atlanta, Georgia
- 14Howard University, Washington, District of Columbia
- 15University of Illinois at Urbana-Champaign, Urbana, Illinois
- 16Institute for Information Industry, Taipei
- 17Iowa State University, Ames, Iowa
- 18Japan Atomic Energy Agency, Naka, Ibaraki, Japan
- 19Korea University, Seoul, Korea
- 20Lawrence Berkeley National Laboratory, Berkeley, California
- 21Lawrence Livermore National Laboratory, Livermore, California
- 22Lehigh University, Bethlehem, Pennsylvania
- 23Los Alamos National Laboratory, Los Alamos, New Mexico
- 24Lund University, Lund, Sweden
- 25Massachusetts Institute of Technology, Cambridge, Massachusetts
- 26University of Michigan, Ann Arbor, Michigan
- 27Morgan State University, Baltimore, Maryland
- 28Muhlenberg College, Allentown, Pennsylvania
- 29Nara Women's University, Nara, Nara, Japan
- 30National Central University, Taoyuan City
- 31National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow, Russia
- 32National Taiwan University, Taipei
- 33University of North Carolina, Greensboro, North Carolina
- 34Oak Ridge National Laboratory, Oak Ridge, Tennessee
- 35Ohio University, Athens, Ohio
- 36Peking University, Beijing
- 37Purdue University, West Lafayette, Indiana
- 38Pusan National University, Pusan, Korea
- 39RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, Japan
- 40RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York
- 41Rikkyo University, Toshima, Tokyo, Japan
- 42Rutgers University, Piscataway, New Jersey
- 43State University of New York, Stony Brook, New York
- 44Sun Yat-sen University, Guangzhou, Guangdong
- 45University of Tennessee, Knoxville, Tennessee
- 46University of Texas, Austin, Texas
- 47Vanderbilt University, Nashville, Tennessee
- 48Wayne State University, Detroit, Michigan
- 49Weizmann Institute of Science, Rehovot, Israel
- 50Yonsei University, Seoul, Korea
- 51United States Merchant Marine Academy, Kings Point, New York
Phys. Rev. C 112, 024908 – Published 21 August, 2025
DOI: https://doi.org/10.1103/h8d5-swg6
Abstract
This paper reports measurements of the transverse energy per unit pseudorapidity () produced in Au+Au collisions at , performed with the sPHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The results cover the pseudorapidity range and constitute the first such measurement performed using a hadronic calorimeter at RHIC. Measurements of are presented for a range of centrality intervals and the average as a function of the number of participating nucleons, , 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 and improved precision in low- events.