Photon and neutral pion production in Au+Au collisions at √sNN=130 GeV

J. Adams; C. Adler; M. M. Aggarwal; Z. Ahammed; J. Amonett; B. D. Anderson; M. Anderson; D. Arkhipkin; G. S. Averichev; S. K. Badyal; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; B. I. Bezverkhny; S. Bhardwaj; P. Bhaskar; A. K. Bhati; H. Bichsel; A. Billmeier; L. C. Bland; C. O. Blyth; B. E. Bonner; M. Botje; A. Boucham; A. Brandin; A. Bravar; R. V. Cadman; X. Z. Cai; H. Caines; M. Calderón De La Barca Sánchez; J. Carroll; J. Castillo; M. Castro; D. Cebra; P. Chaloupka; S. Chattopadhyay; H. F. Chen; Y. Chen; S. P. Chernenko; M. Cherney; A. Chikanian; B. Choi; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; D. Das; S. Das; A. A. Derevschikov; L. Didenko; T. Dietel; X. Dong; J. E. Draper; F. Du; A. K. Dubey; V. B. Dunin; J. C. Dunlop; M. R. Dutta Majumdar; V. Eckardt; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; V. Faine; J. Faivre; R. Fatemi; K. Filimonov; P. Filip; E. Finch; Y. Fisyak; D. Flierl; K. J. Foley; J. Fu; C. A. Gagliardi; M. S. Ganti; T. D. Gutierrez; N. Gagunashvili; J. Gans; L. Gaudichet; M. Germain; F. Geurts; V. Ghazikhanian; P. Ghosh; J. E. Gonzalez; O. Grachov; V. Grigoriev; S. Gronstal; D. Grosnick; M. Guedon; S. M. Guertin; A. Gupta; E. Gushin; T. J. Hallman; D. Hardtke; J. W. Harris; M. Heinz; T. W. Henry; S. Heppelmann; T. Herston; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; M. Horsley; H. Z. Huang; S. L. Huang; T. J. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. W. Jacobs; M. Janik; I. Johnson; P. G. Jones; E. G. Judd; S. Kabana; M. Kaneta; M. Kaplan; D. Keane; J. Kiryluk; A. Kisiel; J. Klay; S. R. Klein; A. Klyachko; D. D. Koetke; T. Kollegger; A. S. Konstantinov; M. Kopytine; L. Kotchenda; A. D. Kovalenko; M. Kramer; P. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; G. J. Kunde; C. L. Kunz; R. Kh Kutuev; A. A. Kuznetsov; M. A.C. Lamont; J. M. Landgraf; S. Lange; C. P. Lansdell; B. Lasiuk; F. Laue; J. Lauret; A. Lebedev; R. Lednický; V. M. Leontiev; M. J. LeVine; C. Li; Q. Li; S. J. Lindenbaum; M. A. Lisa; F. Liu; L. Liu; Z. Liu; Q. J. Liu; T. Ljubicic; W. J. Llope; H. Long; R. S. Longacre; M. Lopez-Noriega; W. A. Love; T. Ludlam; D. Lynn; J. Ma; Y. G. Ma; D. Magestro; S. Mahajan; L. K. Mangotra; D. P. Mahapatra; R. Majka; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. Marx; H. S. Matis; Yu A. Matulenko; T. S. McShane; F. Meissner; Yu Melnick; A. Meschanin; M. Messer; M. L. Miller; Z. Milosevich; N. G. Minaev; C. Mironov; D. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. F. Moore; M. J. Mora-Corral; V. Morozov; M. M. De Moura; M. G. Munhoz; B. K. Nandi; S. K. Nayak; T. K. Nayak; J. M. Nelson; P. Nevski; V. A. Nikitin; L. V. Nogach; B. Norman; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; G. Paic; S. U. Pandey; S. K. Pal; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; V. Perevoztchikov; W. Peryt; V. A. Petrov; S. C. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; M. Potekhin; E. Potrebenikova; B. V.K.S. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rai; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; G. Renault; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevski; J. L. Romero; A. Rose; C. Roy; L. J. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; I. Savin; J. Schambach; R. P. Scharenberg; N. Schmitz; L. S. Schroeder; K. Schweda; J. Seger; D. Seliverstov; P. Seyboth; E. Shahaliev; M. Shao; M. Sharma; K. E. Shestermanov; S. S. Shimanskii; R. N. Singaraju; F. Simon; G. Skoro; N. Smirnov; R. Snellings; G. Sood; P. Sorensen; J. Sowinski; H. M. Spinka; B. Srivastava; S. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; C. Struck; A. A.P. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; B. Surrow; T. J.M. Symons; A. Szanto De Toledo; P. Szarwas; A. Tai; J. Takahashi; A. H. Tang; D. Thein; J. H. Thomas; V. Tikhomirov; M. Tokarev; M. B. Tonjes; T. A. Trainor; S. Trentalange; R. E. Tribble; M. D. Trivedi; V. Trofimov; O. Tsai; T. Ullrich; D. G. Underwood; G. Van Buren; A. M. VanderMolen; A. N. Vasiliev; M. Vasiliev; S. E. Vigdor; Y. P. Viyogi; S. A. Voloshin; W. Waggoner; F. Wang; G. Wang; X. L. Wang; Z. M. Wang; H. Ward; J. W. Watson; R. Wells; G. D. Westfall; C. Whitten; H. Wieman; R. Willson; S. W. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; Z. Z. Xu; A. E. Yakutin; E. Yamamoto; J. Yang; P. Yepes; V. I. Yurevich; Y. V. Zanevski; I. Zborovský; H. Zhang; H. Y. Zhang; W. M. Zhang; Z. P. Zhang; P. A. Zołnierczuk; R. Zoulkarneev; J. Zoulkarneeva; A. N. Zubarev

doi:10.1103/PhysRevC.70.044902

Photon and neutral pion production in Au+Au collisions at √s_NN=130 GeV

J. Adams, C. Adler, M. M. Aggarwal, Z. Ahammed, J. Amonett, B. D. Anderson, M. Anderson, D. Arkhipkin, G. S. Averichev, S. K. Badyal, J. Balewski, O. Barannikova, L. S. Barnby, J. Baudot, S. Bekele, V. V. Belaga, R. Bellwied, J. Berger, B. I. Bezverkhny, S. BhardwajP. Bhaskar, A. K. Bhati, H. Bichsel, A. Billmeier, L. C. Bland, C. O. Blyth, B. E. Bonner, M. Botje, A. Boucham, A. Brandin, A. Bravar, R. V. Cadman, X. Z. Cai, H. Caines, M. Calderón De La Barca Sánchez, J. Carroll, J. Castillo, M. Castro, D. Cebra, P. Chaloupka, S. Chattopadhyay, H. F. Chen, Y. Chen, S. P. Chernenko, M. Cherney, A. Chikanian, B. Choi, W. Christie, J. P. Coffin, T. M. Cormier, J. G. Cramer, H. J. Crawford, D. Das, S. Das, A. A. Derevschikov, L. Didenko, T. Dietel, X. Dong, J. E. Draper, F. Du, A. K. Dubey, V. B. Dunin, J. C. Dunlop, M. R. Dutta Majumdar, V. Eckardt, L. G. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, V. Faine, J. Faivre, R. Fatemi, K. Filimonov, P. Filip, E. Finch, Y. Fisyak, D. Flierl, K. J. Foley, J. Fu, C. A. Gagliardi, M. S. Ganti, T. D. Gutierrez, N. Gagunashvili, J. Gans, L. Gaudichet, M. Germain, F. Geurts, V. Ghazikhanian, P. Ghosh, J. E. Gonzalez, O. Grachov, V. Grigoriev, S. Gronstal, D. Grosnick, M. Guedon, S. M. Guertin, A. Gupta, E. Gushin, T. J. Hallman, D. Hardtke, J. W. Harris, M. Heinz, T. W. Henry, S. Heppelmann, T. Herston, B. Hippolyte, A. Hirsch, E. Hjort, G. W. Hoffmann, M. Horsley, H. Z. Huang, S. L. Huang, T. J. Humanic, G. Igo, A. Ishihara, P. Jacobs, W. W. Jacobs, M. Janik, I. Johnson, P. G. Jones, E. G. Judd, S. Kabana, M. Kaneta, M. Kaplan, D. Keane, J. Kiryluk, A. Kisiel, J. Klay, S. R. Klein, A. Klyachko, D. D. Koetke, T. Kollegger, A. S. Konstantinov, M. Kopytine, L. Kotchenda, A. D. Kovalenko, M. Kramer, P. Kravtsov, K. Krueger, C. Kuhn, A. I. Kulikov, A. Kumar, G. J. Kunde, C. L. Kunz, R. Kh Kutuev, A. A. Kuznetsov, M. A.C. Lamont, J. M. Landgraf, S. Lange, C. P. Lansdell, B. Lasiuk, F. Laue, J. Lauret, A. Lebedev, R. Lednický, V. M. Leontiev, M. J. LeVine, C. Li, Q. Li, S. J. Lindenbaum, M. A. Lisa, F. Liu, L. Liu, Z. Liu, Q. J. Liu, T. Ljubicic, W. J. Llope, H. Long, R. S. Longacre, M. Lopez-Noriega, W. A. Love, T. Ludlam, D. Lynn, J. Ma, Y. G. Ma, D. Magestro, S. Mahajan, L. K. Mangotra, D. P. Mahapatra, R. Majka, R. Manweiler, S. Margetis, C. Markert, L. Martin, J. Marx, H. S. Matis, Yu A. Matulenko, T. S. McShane, F. Meissner, Yu Melnick, A. Meschanin, M. Messer, M. L. Miller, Z. Milosevich, N. G. Minaev, C. Mironov, D. Mishra, J. Mitchell, B. Mohanty, L. Molnar, C. F. Moore, M. J. Mora-Corral, V. Morozov, M. M. De Moura, M. G. Munhoz, B. K. Nandi, S. K. Nayak, T. K. Nayak, J. M. Nelson, P. Nevski, V. A. Nikitin, L. V. Nogach, B. Norman, S. B. Nurushev, G. Odyniec, A. Ogawa, V. Okorokov, M. Oldenburg, D. Olson, G. Paic, S. U. Pandey, S. K. Pal, Y. Panebratsev, S. Y. Panitkin, A. I. Pavlinov, T. Pawlak, V. Perevoztchikov, W. Peryt, V. A. Petrov, S. C. Phatak, R. Picha, M. Planinic, J. Pluta, N. Porile, J. Porter, A. M. Poskanzer, M. Potekhin, E. Potrebenikova, B. V.K.S. Potukuchi, D. Prindle, C. Pruneau, J. Putschke, G. Rai, G. Rakness, R. Raniwala, S. Raniwala, O. Ravel, R. L. Ray, S. V. Razin, D. Reichhold, J. G. Reid, G. Renault, F. Retiere, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevski, J. L. Romero, A. Rose, C. Roy, L. J. Ruan, R. Sahoo, I. Sakrejda, S. Salur, J. Sandweiss, I. Savin, J. Schambach, R. P. Scharenberg, N. Schmitz, L. S. Schroeder, K. Schweda, J. Seger, D. Seliverstov, P. Seyboth, E. Shahaliev, M. Shao, M. Sharma, K. E. Shestermanov, S. S. Shimanskii, R. N. Singaraju, F. Simon, G. Skoro, N. Smirnov, R. Snellings, G. Sood, P. Sorensen, J. Sowinski, H. M. Spinka, B. Srivastava, S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, C. Struck, A. A.P. Suaide, E. Sugarbaker, C. Suire, M. Sumbera, B. Surrow, T. J.M. Symons, A. Szanto De Toledo, P. Szarwas, A. Tai, J. Takahashi, A. H. Tang, D. Thein, J. H. Thomas, V. Tikhomirov, M. Tokarev, M. B. Tonjes, T. A. Trainor, S. Trentalange, R. E. Tribble, M. D. Trivedi, V. Trofimov, O. Tsai, T. Ullrich, D. G. Underwood, G. Van Buren, A. M. VanderMolen, A. N. Vasiliev, M. Vasiliev, S. E. Vigdor, Y. P. Viyogi, S. A. Voloshin, W. Waggoner, F. Wang, G. Wang, X. L. Wang, Z. M. Wang, H. Ward, J. W. Watson, R. Wells, G. D. Westfall, C. Whitten, H. Wieman, R. Willson, S. W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, Z. Xu, Z. Z. Xu, A. E. Yakutin, E. Yamamoto, J. Yang, P. Yepes, V. I. Yurevich, Y. V. Zanevski, I. Zborovský, H. Zhang, H. Y. Zhang, W. M. Zhang, Z. P. Zhang, P. A. Zołnierczuk, R. Zoulkarneev, J. Zoulkarneeva, A. N. Zubarev

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

We report inclusive photon measurements about midrapidity (|y|<0.5) from Au+¹⁹⁷ Au¹⁹⁷ collisions at √s_NN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of ΔE/E≈2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (p_t) spectra of π⁰ mesons about midrapidity (|y|<1) via the π⁰→ γγ decay channel. The fractional contribution of the π⁰→ γγ decay to the inclusive photon spectrum decreases by 20%±5% between p_t=1.65 GeV/c and p_t=2.4 GeV/c in the most central events, indicating that relative to π⁰→ γγ decay the contribution of other photon sources is substantially increasing.

Original language	English
Article number	044902
Pages (from-to)	044902-1-044902-12
Journal	Physical Review C - Nuclear Physics
Volume	70
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.70.044902
State	Published - Oct 1 2004
Externally published	Yes

Funding

The authors thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; Grant Agency of the Czech Republic, FOM and UU of the Netherlands, DAE, DST, and CSIR of the Government of India; the Swiss NSF.

Funders	Funder number
EMN
Russian Ministry of Science and Technology
U.S. Department of Energy
Office of Science
Engineering and Physical Sciences Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Department of Atomic Energy, Government of India
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Stichting voor Fundamenteel Onderzoek der Materie
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Grantová Agentura České Republiky
Bundesministerium für Bildung und Forschung	IN2P3
Bundesministerium für Bildung und Forschung
Ministry of Education
Neurosciences Foundation

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10.1103/PhysRevC.70.044902

Cite this

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Anderson, M., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., ... Zubarev, A. N. (2004). Photon and neutral pion production in Au+Au collisions at √s_NN=130 GeV. Physical Review C - Nuclear Physics, 70(4), 044902-1-044902-12. Article 044902. https://doi.org/10.1103/PhysRevC.70.044902

@article{c6999cb9bf14430c9ed73e7e55c718a0,

title = "Photon and neutral pion production in Au+Au collisions at √sNN=130 GeV",

abstract = "We report inclusive photon measurements about midrapidity (|y|<0.5) from Au+197 Au197 collisions at √sNN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of ΔE/E≈2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (pt) spectra of π0 mesons about midrapidity (|y|<1) via the π0→ γγ decay channel. The fractional contribution of the π0→ γγ decay to the inclusive photon spectrum decreases by 20%±5% between pt=1.65 GeV/c and pt=2.4 GeV/c in the most central events, indicating that relative to π0→ γγ decay the contribution of other photon sources is substantially increasing.",

author = "J. Adams and C. Adler and Aggarwal, {M. M.} and Z. Ahammed and J. Amonett and Anderson, {B. D.} and M. Anderson and D. Arkhipkin and Averichev, {G. S.} and Badyal, {S. K.} and J. Balewski and O. Barannikova and Barnby, {L. S.} and J. Baudot and S. Bekele and Belaga, {V. V.} and R. Bellwied and J. Berger and Bezverkhny, {B. I.} and S. Bhardwaj and P. Bhaskar and Bhati, {A. K.} and H. Bichsel and A. Billmeier and Bland, {L. C.} and Blyth, {C. O.} and Bonner, {B. E.} and M. Botje and A. Boucham and A. Brandin and A. Bravar and Cadman, {R. V.} and Cai, {X. Z.} and H. Caines and {Calder{\'o}n De La Barca S{\'a}nchez}, M. and J. Carroll and J. Castillo and M. Castro and D. Cebra and P. Chaloupka and S. Chattopadhyay and Chen, {H. F.} and Y. Chen and Chernenko, {S. P.} and M. Cherney and A. Chikanian and B. Choi and W. Christie and Coffin, {J. P.} and Cormier, {T. M.} and Cramer, {J. G.} and Crawford, {H. J.} and D. Das and S. Das and Derevschikov, {A. A.} and L. Didenko and T. Dietel and X. Dong and Draper, {J. E.} and F. Du and Dubey, {A. K.} and Dunin, {V. B.} and Dunlop, {J. C.} and {Dutta Majumdar}, {M. R.} and V. Eckardt and Efimov, {L. G.} and V. Emelianov and J. Engelage and G. Eppley and B. Erazmus and M. Estienne and P. Fachini and V. Faine and J. Faivre and R. Fatemi and K. Filimonov and P. Filip and E. Finch and Y. Fisyak and D. Flierl and Foley, {K. J.} and J. Fu and Gagliardi, {C. A.} and Ganti, {M. S.} and Gutierrez, {T. D.} and N. Gagunashvili and J. Gans and L. Gaudichet and M. Germain and F. Geurts and V. Ghazikhanian and P. Ghosh and Gonzalez, {J. E.} and O. Grachov and V. Grigoriev and S. Gronstal and D. Grosnick and M. Guedon and Guertin, {S. M.} and A. Gupta and E. Gushin and Hallman, {T. J.} and D. Hardtke and Harris, {J. W.} and M. Heinz and Henry, {T. W.} and S. Heppelmann and T. Herston and B. Hippolyte and A. Hirsch and E. Hjort and Hoffmann, {G. W.} and M. Horsley and Huang, {H. Z.} and Huang, {S. L.} and Humanic, {T. J.} and G. Igo and A. Ishihara and P. Jacobs and Jacobs, {W. W.} and M. Janik and I. Johnson and Jones, {P. G.} and Judd, {E. G.} and S. Kabana and M. Kaneta and M. Kaplan and D. Keane and J. Kiryluk and A. Kisiel and J. Klay and Klein, {S. R.} and A. Klyachko and Koetke, {D. D.} and T. Kollegger and Konstantinov, {A. S.} and M. Kopytine and L. Kotchenda and Kovalenko, {A. D.} and M. Kramer and P. Kravtsov and K. Krueger and C. Kuhn and Kulikov, {A. I.} and A. Kumar and Kunde, {G. J.} and Kunz, {C. L.} and Kutuev, {R. Kh} and Kuznetsov, {A. A.} and Lamont, {M. A.C.} and Landgraf, {J. M.} and S. Lange and Lansdell, {C. P.} and B. Lasiuk and F. Laue and J. Lauret and A. Lebedev and R. Lednick{\'y} and Leontiev, {V. M.} and LeVine, {M. J.} and C. Li and Q. Li and Lindenbaum, {S. J.} and Lisa, {M. A.} and F. Liu and L. Liu and Z. Liu and Liu, {Q. J.} and T. Ljubicic and Llope, {W. J.} and H. Long and Longacre, {R. S.} and M. Lopez-Noriega and Love, {W. A.} and T. Ludlam and D. Lynn and J. Ma and Ma, {Y. G.} and D. Magestro and S. Mahajan and Mangotra, {L. K.} and Mahapatra, {D. P.} and R. Majka and R. Manweiler and S. Margetis and C. Markert and L. Martin and J. Marx and Matis, {H. S.} and Matulenko, {Yu A.} and McShane, {T. S.} and F. Meissner and Yu Melnick and A. Meschanin and M. Messer and Miller, {M. L.} and Z. Milosevich and Minaev, {N. G.} and C. Mironov and D. Mishra and J. Mitchell and B. Mohanty and L. Molnar and Moore, {C. F.} and Mora-Corral, {M. J.} and V. Morozov and {De Moura}, {M. M.} and Munhoz, {M. G.} and Nandi, {B. K.} and Nayak, {S. K.} and Nayak, {T. K.} and Nelson, {J. M.} and P. Nevski and Nikitin, {V. A.} and Nogach, {L. V.} and B. Norman and Nurushev, {S. B.} and G. Odyniec and A. Ogawa and V. Okorokov and M. Oldenburg and D. Olson and G. Paic and Pandey, {S. U.} and Pal, {S. K.} and Y. Panebratsev and Panitkin, {S. Y.} and Pavlinov, {A. I.} and T. Pawlak and V. Perevoztchikov and W. Peryt and Petrov, {V. A.} and Phatak, {S. C.} and R. Picha and M. Planinic and J. Pluta and N. Porile and J. Porter and Poskanzer, {A. M.} and M. Potekhin and E. Potrebenikova and Potukuchi, {B. V.K.S.} and D. Prindle and C. Pruneau and J. Putschke and G. Rai and G. Rakness and R. Raniwala and S. Raniwala and O. Ravel and Ray, {R. L.} and Razin, {S. V.} and D. Reichhold and Reid, {J. G.} and G. Renault and F. Retiere and A. Ridiger and Ritter, {H. G.} and Roberts, {J. B.} and Rogachevski, {O. V.} and Romero, {J. L.} and A. Rose and C. Roy and Ruan, {L. J.} and R. Sahoo and I. Sakrejda and S. Salur and J. Sandweiss and I. Savin and J. Schambach and Scharenberg, {R. P.} and N. Schmitz and Schroeder, {L. S.} and K. Schweda and J. Seger and D. Seliverstov and P. Seyboth and E. Shahaliev and M. Shao and M. Sharma and Shestermanov, {K. E.} and Shimanskii, {S. S.} and Singaraju, {R. N.} and F. Simon and G. Skoro and N. Smirnov and R. Snellings and G. Sood and P. Sorensen and J. Sowinski and Spinka, {H. M.} and B. Srivastava and S. Stanislaus and R. Stock and A. Stolpovsky and M. Strikhanov and B. Stringfellow and C. Struck and Suaide, {A. A.P.} and E. Sugarbaker and C. Suire and M. Sumbera and B. Surrow and Symons, {T. J.M.} and {Szanto De Toledo}, A. and P. Szarwas and A. Tai and J. Takahashi and Tang, {A. H.} and D. Thein and Thomas, {J. H.} and V. Tikhomirov and M. Tokarev and Tonjes, {M. B.} and Trainor, {T. A.} and S. Trentalange and Tribble, {R. E.} and Trivedi, {M. D.} and V. Trofimov and O. Tsai and T. Ullrich and Underwood, {D. G.} and {Van Buren}, G. and VanderMolen, {A. M.} and Vasiliev, {A. N.} and M. Vasiliev and Vigdor, {S. E.} and Viyogi, {Y. P.} and Voloshin, {S. A.} and W. Waggoner and F. Wang and G. Wang and Wang, {X. L.} and Wang, {Z. M.} and H. Ward and Watson, {J. W.} and R. Wells and Westfall, {G. D.} and C. Whitten and H. Wieman and R. Willson and Wissink, {S. W.} and R. Witt and J. Wood and J. Wu and N. Xu and Z. Xu and Xu, {Z. Z.} and Yakutin, {A. E.} and E. Yamamoto and J. Yang and P. Yepes and Yurevich, {V. I.} and Zanevski, {Y. V.} and I. Zborovsk{\'y} and H. Zhang and Zhang, {H. Y.} and Zhang, {W. M.} and Zhang, {Z. P.} and Zo{\l}nierczuk, {P. A.} and R. Zoulkarneev and J. Zoulkarneeva and Zubarev, {A. N.}",

note = "Publisher Copyright: {\textcopyright} 2004 The American Physical Society.",

year = "2004",

month = oct,

day = "1",

doi = "10.1103/PhysRevC.70.044902",

language = "English",

volume = "70",

pages = "044902--1--044902--12",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "4",

}

Adams, J, Adler, C, Aggarwal, MM, Ahammed, Z, Amonett, J, Anderson, BD, Anderson, M, Arkhipkin, D, Averichev, GS, Badyal, SK, Balewski, J, Barannikova, O, Barnby, LS, Baudot, J, Bekele, S, Belaga, VV, Bellwied, R, Berger, J, Bezverkhny, BI, Bhardwaj, S, Bhaskar, P, Bhati, AK, Bichsel, H, Billmeier, A, Bland, LC, Blyth, CO, Bonner, BE, Botje, M, Boucham, A, Brandin, A, Bravar, A, Cadman, RV, Cai, XZ, Caines, H, Calderón De La Barca Sánchez, M, Carroll, J, Castillo, J, Castro, M, Cebra, D, Chaloupka, P, Chattopadhyay, S, Chen, HF, Chen, Y, Chernenko, SP, Cherney, M, Chikanian, A, Choi, B, Christie, W, Coffin, JP, Cormier, TM, Cramer, JG, Crawford, HJ, Das, D, Das, S, Derevschikov, AA, Didenko, L, Dietel, T, Dong, X, Draper, JE, Du, F, Dubey, AK, Dunin, VB, Dunlop, JC, Dutta Majumdar, MR, Eckardt, V, Efimov, LG, Emelianov, V, Engelage, J, Eppley, G, Erazmus, B, Estienne, M, Fachini, P, Faine, V, Faivre, J, Fatemi, R, Filimonov, K, Filip, P, Finch, E, Fisyak, Y, Flierl, D, Foley, KJ, Fu, J, Gagliardi, CA, Ganti, MS, Gutierrez, TD, Gagunashvili, N, Gans, J, Gaudichet, L, Germain, M, Geurts, F, Ghazikhanian, V, Ghosh, P, Gonzalez, JE, Grachov, O, Grigoriev, V, Gronstal, S, Grosnick, D, Guedon, M, Guertin, SM, Gupta, A, Gushin, E, Hallman, TJ, Hardtke, D, Harris, JW, Heinz, M, Henry, TW, Heppelmann, S, Herston, T, Hippolyte, B, Hirsch, A, Hjort, E, Hoffmann, GW, Horsley, M, Huang, HZ, Huang, SL, Humanic, TJ, Igo, G, Ishihara, A, Jacobs, P, Jacobs, WW, Janik, M, Johnson, I, Jones, PG, Judd, EG, Kabana, S, Kaneta, M, Kaplan, M, Keane, D, Kiryluk, J, Kisiel, A, Klay, J, Klein, SR, Klyachko, A, Koetke, DD, Kollegger, T, Konstantinov, AS, Kopytine, M, Kotchenda, L, Kovalenko, AD, Kramer, M, Kravtsov, P, Krueger, K, Kuhn, C, Kulikov, AI, Kumar, A, Kunde, GJ, Kunz, CL, Kutuev, RK, Kuznetsov, AA, Lamont, MAC, Landgraf, JM, Lange, S, Lansdell, CP, Lasiuk, B, Laue, F, Lauret, J, Lebedev, A, Lednický, R, Leontiev, VM, LeVine, MJ, Li, C, Li, Q, Lindenbaum, SJ, Lisa, MA, Liu, F, Liu, L, Liu, Z, Liu, QJ, Ljubicic, T, Llope, WJ, Long, H, Longacre, RS, Lopez-Noriega, M, Love, WA, Ludlam, T, Lynn, D, Ma, J, Ma, YG, Magestro, D, Mahajan, S, Mangotra, LK, Mahapatra, DP, Majka, R, Manweiler, R, Margetis, S, Markert, C, Martin, L, Marx, J, Matis, HS, Matulenko, YA, McShane, TS, Meissner, F, Melnick, Y, Meschanin, A, Messer, M, Miller, ML, Milosevich, Z, Minaev, NG, Mironov, C, Mishra, D, Mitchell, J, Mohanty, B, Molnar, L, Moore, CF, Mora-Corral, MJ, Morozov, V, De Moura, MM, Munhoz, MG, Nandi, BK, Nayak, SK, Nayak, TK, Nelson, JM, Nevski, P, Nikitin, VA, Nogach, LV, Norman, B, Nurushev, SB, Odyniec, G, Ogawa, A, Okorokov, V, Oldenburg, M, Olson, D, Paic, G, Pandey, SU, Pal, SK, Panebratsev, Y, Panitkin, SY, Pavlinov, AI, Pawlak, T, Perevoztchikov, V, Peryt, W, Petrov, VA, Phatak, SC, Picha, R, Planinic, M, Pluta, J, Porile, N, Porter, J, Poskanzer, AM, Potekhin, M, Potrebenikova, E, Potukuchi, BVKS, Prindle, D, Pruneau, C, Putschke, J, Rai, G, Rakness, G, Raniwala, R, Raniwala, S, Ravel, O, Ray, RL, Razin, SV, Reichhold, D, Reid, JG, Renault, G, Retiere, F, Ridiger, A, Ritter, HG, Roberts, JB, Rogachevski, OV, Romero, JL, Rose, A, Roy, C, Ruan, LJ, Sahoo, R, Sakrejda, I, Salur, S, Sandweiss, J, Savin, I, Schambach, J, Scharenberg, RP, Schmitz, N, Schroeder, LS, Schweda, K, Seger, J, Seliverstov, D, Seyboth, P, Shahaliev, E, Shao, M, Sharma, M, Shestermanov, KE, Shimanskii, SS, Singaraju, RN, Simon, F, Skoro, G, Smirnov, N, Snellings, R, Sood, G, Sorensen, P, Sowinski, J, Spinka, HM, Srivastava, B, Stanislaus, S, Stock, R, Stolpovsky, A, Strikhanov, M, Stringfellow, B, Struck, C, Suaide, AAP, Sugarbaker, E, Suire, C, Sumbera, M, Surrow, B, Symons, TJM, Szanto De Toledo, A, Szarwas, P, Tai, A, Takahashi, J, Tang, AH, Thein, D, Thomas, JH, Tikhomirov, V, Tokarev, M, Tonjes, MB, Trainor, TA, Trentalange, S, Tribble, RE, Trivedi, MD, Trofimov, V, Tsai, O, Ullrich, T, Underwood, DG, Van Buren, G, VanderMolen, AM, Vasiliev, AN, Vasiliev, M, Vigdor, SE, Viyogi, YP, Voloshin, SA, Waggoner, W, Wang, F, Wang, G, Wang, XL, Wang, ZM, Ward, H, Watson, JW, Wells, R, Westfall, GD, Whitten, C, Wieman, H, Willson, R, Wissink, SW, Witt, R, Wood, J, Wu, J, Xu, N, Xu, Z, Xu, ZZ, Yakutin, AE, Yamamoto, E, Yang, J, Yepes, P, Yurevich, VI, Zanevski, YV, Zborovský, I, Zhang, H, Zhang, HY, Zhang, WM, Zhang, ZP, Zołnierczuk, PA, Zoulkarneev, R, Zoulkarneeva, J & Zubarev, AN 2004, 'Photon and neutral pion production in Au+Au collisions at √s_NN=130 GeV', Physical Review C - Nuclear Physics, vol. 70, no. 4, 044902, pp. 044902-1-044902-12. https://doi.org/10.1103/PhysRevC.70.044902

TY - JOUR

T1 - Photon and neutral pion production in Au+Au collisions at √sNN=130 GeV

AU - Adams, J.

AU - Adler, C.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Amonett, J.

AU - Anderson, B. D.

AU - Anderson, M.

AU - Arkhipkin, D.

AU - Averichev, G. S.

AU - Badyal, S. K.

AU - Balewski, J.

AU - Barannikova, O.

AU - Barnby, L. S.

AU - Baudot, J.

AU - Bekele, S.

AU - Belaga, V. V.

AU - Bellwied, R.

AU - Berger, J.

AU - Bezverkhny, B. I.

AU - Bhardwaj, S.

AU - Bhaskar, P.

AU - Bhati, A. K.

AU - Bichsel, H.

AU - Billmeier, A.

AU - Bland, L. C.

AU - Blyth, C. O.

AU - Bonner, B. E.

AU - Botje, M.

AU - Boucham, A.

AU - Brandin, A.

AU - Bravar, A.

AU - Cadman, R. V.

AU - Cai, X. Z.

AU - Caines, H.

AU - Calderón De La Barca Sánchez, M.

AU - Carroll, J.

AU - Castillo, J.

AU - Castro, M.

AU - Cebra, D.

AU - Chaloupka, P.

AU - Chattopadhyay, S.

AU - Chen, H. F.

AU - Chen, Y.

AU - Chernenko, S. P.

AU - Cherney, M.

AU - Chikanian, A.

AU - Choi, B.

AU - Christie, W.

AU - Coffin, J. P.

AU - Cormier, T. M.

AU - Cramer, J. G.

AU - Crawford, H. J.

AU - Das, D.

AU - Das, S.

AU - Derevschikov, A. A.

AU - Didenko, L.

AU - Dietel, T.

AU - Dong, X.

AU - Draper, J. E.

AU - Du, F.

AU - Dubey, A. K.

AU - Dunin, V. B.

AU - Dunlop, J. C.

AU - Dutta Majumdar, M. R.

AU - Eckardt, V.

AU - Efimov, L. G.

AU - Emelianov, V.

AU - Engelage, J.

AU - Eppley, G.

AU - Erazmus, B.

AU - Estienne, M.

AU - Fachini, P.

AU - Faine, V.

AU - Faivre, J.

AU - Fatemi, R.

AU - Filimonov, K.

AU - Filip, P.

AU - Finch, E.

AU - Fisyak, Y.

AU - Flierl, D.

AU - Foley, K. J.

AU - Fu, J.

AU - Gagliardi, C. A.

AU - Ganti, M. S.

AU - Gutierrez, T. D.

AU - Gagunashvili, N.

AU - Gans, J.

AU - Gaudichet, L.

AU - Germain, M.

AU - Geurts, F.

AU - Ghazikhanian, V.

AU - Ghosh, P.

AU - Gonzalez, J. E.

AU - Grachov, O.

AU - Grigoriev, V.

AU - Gronstal, S.

AU - Grosnick, D.

AU - Guedon, M.

AU - Guertin, S. M.

AU - Gupta, A.

AU - Gushin, E.

AU - Hallman, T. J.

AU - Hardtke, D.

AU - Harris, J. W.

AU - Heinz, M.

AU - Henry, T. W.

AU - Heppelmann, S.

AU - Herston, T.

AU - Hippolyte, B.

AU - Hirsch, A.

AU - Hjort, E.

AU - Hoffmann, G. W.

AU - Horsley, M.

AU - Huang, H. Z.

AU - Huang, S. L.

AU - Humanic, T. J.

AU - Igo, G.

AU - Ishihara, A.

AU - Jacobs, P.

AU - Jacobs, W. W.

AU - Janik, M.

AU - Johnson, I.

AU - Jones, P. G.

AU - Judd, E. G.

AU - Kabana, S.

AU - Kaneta, M.

AU - Kaplan, M.

AU - Keane, D.

AU - Kiryluk, J.

AU - Kisiel, A.

AU - Klay, J.

AU - Klein, S. R.

AU - Klyachko, A.

AU - Koetke, D. D.

AU - Kollegger, T.

AU - Konstantinov, A. S.

AU - Kopytine, M.

AU - Kotchenda, L.

AU - Kovalenko, A. D.

AU - Kramer, M.

AU - Kravtsov, P.

AU - Krueger, K.

AU - Kuhn, C.

AU - Kulikov, A. I.

AU - Kumar, A.

AU - Kunde, G. J.

AU - Kunz, C. L.

AU - Kutuev, R. Kh

AU - Kuznetsov, A. A.

AU - Lamont, M. A.C.

AU - Landgraf, J. M.

AU - Lange, S.

AU - Lansdell, C. P.

AU - Lasiuk, B.

AU - Laue, F.

AU - Lauret, J.

AU - Lebedev, A.

AU - Lednický, R.

AU - Leontiev, V. M.

AU - LeVine, M. J.

AU - Li, C.

AU - Li, Q.

AU - Lindenbaum, S. J.

AU - Lisa, M. A.

AU - Liu, F.

AU - Liu, L.

AU - Liu, Z.

AU - Liu, Q. J.

AU - Ljubicic, T.

AU - Llope, W. J.

AU - Long, H.

AU - Longacre, R. S.

AU - Lopez-Noriega, M.

AU - Love, W. A.

AU - Ludlam, T.

AU - Lynn, D.

AU - Ma, J.

AU - Ma, Y. G.

AU - Magestro, D.

AU - Mahajan, S.

AU - Mangotra, L. K.

AU - Mahapatra, D. P.

AU - Majka, R.

AU - Manweiler, R.

AU - Margetis, S.

AU - Markert, C.

AU - Martin, L.

AU - Marx, J.

AU - Matis, H. S.

AU - Matulenko, Yu A.

AU - McShane, T. S.

AU - Meissner, F.

AU - Melnick, Yu

AU - Meschanin, A.

AU - Messer, M.

AU - Miller, M. L.

AU - Milosevich, Z.

AU - Minaev, N. G.

AU - Mironov, C.

AU - Mishra, D.

AU - Mitchell, J.

AU - Mohanty, B.

AU - Molnar, L.

AU - Moore, C. F.

AU - Mora-Corral, M. J.

AU - Morozov, V.

AU - De Moura, M. M.

AU - Munhoz, M. G.

AU - Nandi, B. K.

AU - Nayak, S. K.

AU - Nayak, T. K.

AU - Nelson, J. M.

AU - Nevski, P.

AU - Nikitin, V. A.

AU - Nogach, L. V.

AU - Norman, B.

AU - Nurushev, S. B.

AU - Odyniec, G.

AU - Ogawa, A.

AU - Okorokov, V.

AU - Oldenburg, M.

AU - Olson, D.

AU - Paic, G.

AU - Pandey, S. U.

AU - Pal, S. K.

AU - Panebratsev, Y.

AU - Panitkin, S. Y.

AU - Pavlinov, A. I.

AU - Pawlak, T.

AU - Perevoztchikov, V.

AU - Peryt, W.

AU - Petrov, V. A.

AU - Phatak, S. C.

AU - Picha, R.

AU - Planinic, M.

AU - Pluta, J.

AU - Porile, N.

AU - Porter, J.

AU - Poskanzer, A. M.

AU - Potekhin, M.

AU - Potrebenikova, E.

AU - Potukuchi, B. V.K.S.

AU - Prindle, D.

AU - Pruneau, C.

AU - Putschke, J.

AU - Rai, G.

AU - Rakness, G.

AU - Raniwala, R.

AU - Raniwala, S.

AU - Ravel, O.

AU - Ray, R. L.

AU - Razin, S. V.

AU - Reichhold, D.

AU - Reid, J. G.

AU - Renault, G.

AU - Retiere, F.

AU - Ridiger, A.

AU - Ritter, H. G.

AU - Roberts, J. B.

AU - Rogachevski, O. V.

AU - Romero, J. L.

AU - Rose, A.

AU - Roy, C.

AU - Ruan, L. J.

AU - Sahoo, R.

AU - Sakrejda, I.

AU - Salur, S.

AU - Sandweiss, J.

AU - Savin, I.

AU - Schambach, J.

AU - Scharenberg, R. P.

AU - Schmitz, N.

AU - Schroeder, L. S.

AU - Schweda, K.

AU - Seger, J.

AU - Seliverstov, D.

AU - Seyboth, P.

AU - Shahaliev, E.

AU - Shao, M.

AU - Sharma, M.

AU - Shestermanov, K. E.

AU - Shimanskii, S. S.

AU - Singaraju, R. N.

AU - Simon, F.

AU - Skoro, G.

AU - Smirnov, N.

AU - Snellings, R.

AU - Sood, G.

AU - Sorensen, P.

AU - Sowinski, J.

AU - Spinka, H. M.

AU - Srivastava, B.

AU - Stanislaus, S.

AU - Stock, R.

AU - Stolpovsky, A.

AU - Strikhanov, M.

AU - Stringfellow, B.

AU - Struck, C.

AU - Suaide, A. A.P.

AU - Sugarbaker, E.

AU - Suire, C.

AU - Sumbera, M.

AU - Surrow, B.

AU - Symons, T. J.M.

AU - Szanto De Toledo, A.

AU - Szarwas, P.

AU - Tai, A.

AU - Takahashi, J.

AU - Tang, A. H.

AU - Thein, D.

AU - Thomas, J. H.

AU - Tikhomirov, V.

AU - Tokarev, M.

AU - Tonjes, M. B.

AU - Trainor, T. A.

AU - Trentalange, S.

AU - Tribble, R. E.

AU - Trivedi, M. D.

AU - Trofimov, V.

AU - Tsai, O.

AU - Ullrich, T.

AU - Underwood, D. G.

AU - Van Buren, G.

AU - VanderMolen, A. M.

AU - Vasiliev, A. N.

AU - Vasiliev, M.

AU - Vigdor, S. E.

AU - Viyogi, Y. P.

AU - Voloshin, S. A.

AU - Waggoner, W.

AU - Wang, F.

AU - Wang, G.

AU - Wang, X. L.

AU - Wang, Z. M.

AU - Ward, H.

AU - Watson, J. W.

AU - Wells, R.

AU - Westfall, G. D.

AU - Whitten, C.

AU - Wieman, H.

AU - Willson, R.

AU - Wissink, S. W.

AU - Witt, R.

AU - Wood, J.

AU - Wu, J.

AU - Xu, N.

AU - Xu, Z.

AU - Xu, Z. Z.

AU - Yakutin, A. E.

AU - Yamamoto, E.

AU - Yang, J.

AU - Yepes, P.

AU - Yurevich, V. I.

AU - Zanevski, Y. V.

AU - Zborovský, I.

AU - Zhang, H.

AU - Zhang, H. Y.

AU - Zhang, W. M.

AU - Zhang, Z. P.

AU - Zołnierczuk, P. A.

AU - Zoulkarneev, R.

AU - Zoulkarneeva, J.

AU - Zubarev, A. N.

PY - 2004/10/1

Y1 - 2004/10/1

N2 - We report inclusive photon measurements about midrapidity (|y|<0.5) from Au+197 Au197 collisions at √sNN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of ΔE/E≈2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (pt) spectra of π0 mesons about midrapidity (|y|<1) via the π0→ γγ decay channel. The fractional contribution of the π0→ γγ decay to the inclusive photon spectrum decreases by 20%±5% between pt=1.65 GeV/c and pt=2.4 GeV/c in the most central events, indicating that relative to π0→ γγ decay the contribution of other photon sources is substantially increasing.

AB - We report inclusive photon measurements about midrapidity (|y|<0.5) from Au+197 Au197 collisions at √sNN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of ΔE/E≈2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (pt) spectra of π0 mesons about midrapidity (|y|<1) via the π0→ γγ decay channel. The fractional contribution of the π0→ γγ decay to the inclusive photon spectrum decreases by 20%±5% between pt=1.65 GeV/c and pt=2.4 GeV/c in the most central events, indicating that relative to π0→ γγ decay the contribution of other photon sources is substantially increasing.

UR - http://www.scopus.com/inward/record.url?scp=84884347846&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.70.044902

DO - 10.1103/PhysRevC.70.044902

M3 - Article

AN - SCOPUS:84884347846

SN - 0556-2813

VL - 70

SP - 044902-1-044902-12

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044902

ER -

Photon and neutral pion production in Au+Au collisions at √s_NN=130 GeV

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