Measurement of charged hadron multiplicity in Au+Au collisions at $\sqrt{\text{s}_{\text{NN}}} = 200$ GeV with the sPHENIX detector
Measurement of charged hadron multiplicity in Au+Au collisions at $\sqrt{\text{s}_{\text{NN}}} = 200$ GeV with the sPHENIX detector
The pseudorapidity distribution of charged hadrons produced in Au+Au collisions at a center-of-mass energy of $\sqrt{s_\mathrm{NN}} = 200$ 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 $|\eta| < 1.1$ across various centralities, and the average pseudorapidity 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.
E. Renner、J. Putschke、R. J. Reed、M. Peters、S. Ping、C. Platte、C. Pontieri、C. Pinkenburg、R. Pisani、L. Reeves、T. Protzman、S. Regmi、M. L. Purschke、D. V. Perepelitsa、Z. Shi、C. W. Shih、K. Shiina、M. Shimomura、R. Shishikura、E. Shulga、A. Sickles、D. Silvermyr、R. A. Soltz、W. Sondheim、I. Sourikova、P. Steinberg、C. Riedl、T. Rinn、D. Richford、C. Roland、Y. Kawashima、M. S. Khan、T. Kikuchi、J. Kim、B. Kimelman、H. T. Klest、A. G. Knospe、M. B. Knuesel、H. S. Ko、J. Kuczewski、N. Kumar、R. Kunnawalkam Elayavalli、C. M. Kuo、J. Kvapil、Y. Kwon、J. Lajoie、J. D. Lang、A. Lebedev、S. Lee、L. Legnosky、S. Li、X. Li、T. Lian、S. Liechty、S. Lim、D. Lis、M. X. Liu、W. J. Llope、D. A. Loomis、R. -S. Lu、L. Ma、W. Ma、V. Mahaut、T. Majoros、I. Mandjavidze、E. Mannel、C. Markert、T. R. Marshall、C. Martin、H. Masuda、G. Mattson、M. Mazeikis、C. McGinn、E. McLaughlin、J. Mead、Y. Mei、T. Mengel、M. Meskowitz、J. Mills、A. Milov、C. Mironov、G. Mitsuka、N. Morimoto、D. Morrison、L. W. Mwibanda、C. -J. Na?m、J. L. Nagle、I. Nakagawa、Y. Nakamura、G. Nakano、A. Narde、C. E. Nattrass、D. Neff、S. Nelson、D. Nemoto、P. A. Nieto-Marín、R. Nouicer、G. Nukazuka、E. O'Brien、G. Odyniec、S. Oh、V. A. Okorokov、A. C. Oliveira da Silva、J. D. Osborn、G. J. Ottino、Y. C. Ou、J. Ouellette、D. Padrazo、T. Pani、J. Park、A. Patton、H. Pereira Da Costa、D. Stewart、S. Stoll、Y. Sugiyama、O. Suranyi、W. -C. Tang、S. Tarafdar、E. Thorsland、T. Todoroki、L. S. Tsai、H. Tsujibata、M. Tsuruta、J. Tutterow、E. Tuttle、B. Ujvari、E. N. Umaka、M. Vandenbroucke、J. Vasquez、J. Velkovska、V. Verkest、A. Vijayakumar、X. Wang、Y. Wang、Z. Wang、I. S. Ward、M. Watanabe、J. Webb、A. Wehe、A. Wils、V. Wolfe、C. Woody、W. Xie、Y. Yamaguchi、Z. Ye、K. Yip、Z. You、G. Young、C. -J. Yu、X. Yu、X. Yu、W. A. Zajc、V. Zakharov、J. Zhang、C. Zimmerli、K. Y. Cheng、C. -Y. Chi、M. Chiu、J. Clement、E. W. Cline、M. Connors、E. Cook、R. Corliss、Y. Corrales Morales、E. Croft、N. d'Hose、A. Dabas、D. Dacosta、M. Daradkeh、S. J. Das、A. P. Dash、G. David、C. T. Dean、K. Dehmelt、X. Dong、A. Drees、J. M. Durham、A. Enokizono、H. Enyo、J. Escobar Cepero、R. Esha、B. Fadem、R. Feder、K. Finnelli、D. Firak、A. Francisco、J. Frantz、A. Frawley、K. Fujiki、M. Fujiwara、B. Garcia、P. Garg、G. Garmire、E. Gentry、Y. Go、C. Goblin、W. Goodman、Y. Goto、A. Grabas、O. Grachov、J. Granato、N. Grau、S. V. Greene、G. Roland、A. Romero Hernandez、M. Rosati、D. Roy、A. Saed、T. Sakaguchi、H. Sako、S. Salur、J. Sandhu、M. Sarsour、S. Sato、B. Sayki、B. Schaefer、J. Schambach、R. Seidl、B. D. Seidlitz、Y. Sekiguchi、M. Shahid、D. M. Shangase、sPHENIX Collaboration、M. I. Abdulhamid、U. Acharya、E. R. Adams、G. Adawi、C. A. Aidala、Y. Akiba、M. Alfred、S. Ali、A. Alsayegh、S. Altaf、H. Amedi、D. M. Anderson、V. V. Andrieux、A. Angerami、N. Applegate、H. Aso、S. Aune、B. Azmoun、V. R. Bailey、D. Baranyai、S. Bathe、A. Bazilevsky、S. Bela、R. Belmont、J. Bennett、J. C. Bernauer、J. Bertaux、R. Bi、A. Bonenfant、S. Boose、C. Borchers、H. Bossi、R. Botsford、R. Boucher、A. Brahma、J. W. Bryan、D. Cacace、I. Cali、M. Chamizo-Llatas、S. B. Chauhan、A. Chen、D. Chen、J. Chen、K. Chen、K. Y. Chen、S. K. Grossberndt、R. Guidolini-Cecato、T. Hachiya、J. S. Haggerty、R. Hamilton、J. Hammond、D. A. Hangal、S. Hasegawa、M. Hata、W. He、X. He、T. Hemmick、A. Hodges、M. E. Hoffmann、A. Holt、B. Hong、M. Housenga、S. Howell、Y. Hu、H. Z. Huang、J. Huang、T. C. Huang、D. A. Huffman、C. Hughes、J. Hwang、T. Ichino、M. Ikemoto、D. Imagawa、H. Imai、D. Jah、J. James、H. -R. Jheng、Y. Ji、Z. Ji、H. Jiang、M. Kano、L. Kasper、T. Kato
物理学
E. Renner,J. Putschke,R. J. Reed,M. Peters,S. Ping,C. Platte,C. Pontieri,C. Pinkenburg,R. Pisani,L. Reeves,T. Protzman,S. Regmi,M. L. Purschke,D. V. Perepelitsa,Z. Shi,C. W. Shih,K. Shiina,M. Shimomura,R. Shishikura,E. Shulga,A. Sickles,D. Silvermyr,R. A. Soltz,W. Sondheim,I. Sourikova,P. Steinberg,C. Riedl,T. Rinn,D. Richford,C. Roland,Y. Kawashima,M. S. Khan,T. Kikuchi,J. Kim,B. Kimelman,H. T. Klest,A. G. Knospe,M. B. Knuesel,H. S. Ko,J. Kuczewski,N. Kumar,R. Kunnawalkam Elayavalli,C. M. Kuo,J. Kvapil,Y. Kwon,J. Lajoie,J. D. Lang,A. Lebedev,S. Lee,L. Legnosky,S. Li,X. Li,T. Lian,S. Liechty,S. Lim,D. Lis,M. X. Liu,W. J. Llope,D. A. Loomis,R. -S. Lu,L. Ma,W. Ma,V. Mahaut,T. Majoros,I. Mandjavidze,E. Mannel,C. Markert,T. R. Marshall,C. Martin,H. Masuda,G. Mattson,M. Mazeikis,C. McGinn,E. McLaughlin,J. Mead,Y. Mei,T. Mengel,M. Meskowitz,J. Mills,A. Milov,C. Mironov,G. Mitsuka,N. Morimoto,D. Morrison,L. W. Mwibanda,C. -J. Na?m,J. L. Nagle,I. Nakagawa,Y. Nakamura,G. Nakano,A. Narde,C. E. Nattrass,D. Neff,S. Nelson,D. Nemoto,P. A. Nieto-Marín,R. Nouicer,G. Nukazuka,E. O'Brien,G. Odyniec,S. Oh,V. A. Okorokov,A. C. Oliveira da Silva,J. D. Osborn,G. J. Ottino,Y. C. Ou,J. Ouellette,D. Padrazo,T. Pani,J. Park,A. Patton,H. Pereira Da Costa,D. Stewart,S. Stoll,Y. Sugiyama,O. Suranyi,W. -C. Tang,S. Tarafdar,E. Thorsland,T. Todoroki,L. S. Tsai,H. Tsujibata,M. Tsuruta,J. Tutterow,E. Tuttle,B. Ujvari,E. N. Umaka,M. Vandenbroucke,J. Vasquez,J. Velkovska,V. Verkest,A. Vijayakumar,X. Wang,Y. Wang,Z. Wang,I. S. Ward,M. Watanabe,J. Webb,A. Wehe,A. Wils,V. Wolfe,C. Woody,W. Xie,Y. Yamaguchi,Z. Ye,K. Yip,Z. You,G. Young,C. -J. Yu,X. Yu,X. Yu,W. A. Zajc,V. Zakharov,J. Zhang,C. Zimmerli,K. Y. Cheng,C. -Y. Chi,M. Chiu,J. Clement,E. W. Cline,M. Connors,E. Cook,R. Corliss,Y. Corrales Morales,E. Croft,N. d'Hose,A. Dabas,D. Dacosta,M. Daradkeh,S. J. Das,A. P. Dash,G. David,C. T. Dean,K. Dehmelt,X. Dong,A. Drees,J. M. Durham,A. Enokizono,H. Enyo,J. Escobar Cepero,R. Esha,B. Fadem,R. Feder,K. Finnelli,D. Firak,A. Francisco,J. Frantz,A. Frawley,K. Fujiki,M. Fujiwara,B. Garcia,P. Garg,G. Garmire,E. Gentry,Y. Go,C. Goblin,W. Goodman,Y. Goto,A. Grabas,O. Grachov,J. Granato,N. Grau,S. V. Greene,G. Roland,A. Romero Hernandez,M. Rosati,D. Roy,A. Saed,T. Sakaguchi,H. Sako,S. Salur,J. Sandhu,M. Sarsour,S. Sato,B. Sayki,B. Schaefer,J. Schambach,R. Seidl,B. D. Seidlitz,Y. Sekiguchi,M. Shahid,D. M. Shangase,sPHENIX Collaboration,M. I. Abdulhamid,U. Acharya,E. R. Adams,G. Adawi,C. A. Aidala,Y. Akiba,M. Alfred,S. Ali,A. Alsayegh,S. Altaf,H. Amedi,D. M. Anderson,V. V. Andrieux,A. Angerami,N. Applegate,H. Aso,S. Aune,B. Azmoun,V. R. Bailey,D. Baranyai,S. Bathe,A. Bazilevsky,S. Bela,R. Belmont,J. Bennett,J. C. Bernauer,J. Bertaux,R. Bi,A. Bonenfant,S. Boose,C. Borchers,H. Bossi,R. Botsford,R. Boucher,A. Brahma,J. W. Bryan,D. Cacace,I. Cali,M. Chamizo-Llatas,S. B. Chauhan,A. Chen,D. Chen,J. Chen,K. Chen,K. Y. Chen,S. K. Grossberndt,R. Guidolini-Cecato,T. Hachiya,J. S. Haggerty,R. Hamilton,J. Hammond,D. A. Hangal,S. Hasegawa,M. Hata,W. He,X. He,T. Hemmick,A. Hodges,M. E. Hoffmann,A. Holt,B. Hong,M. Housenga,S. Howell,Y. Hu,H. Z. Huang,J. Huang,T. C. Huang,D. A. Huffman,C. Hughes,J. Hwang,T. Ichino,M. Ikemoto,D. Imagawa,H. Imai,D. Jah,J. James,H. -R. Jheng,Y. Ji,Z. Ji,H. Jiang,M. Kano,L. Kasper,T. Kato.Measurement of charged hadron multiplicity in Au+Au collisions at $\sqrt{\text{s}_{\text{NN}}} = 200$ GeV with the sPHENIX detector[EB/OL].(2025-04-02)[2025-04-24].https://arxiv.org/abs/2504.02240.点此复制
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