Measurement of single electrons and implications for charm production in Au+Au collisions at square root[s(NN)] = 130 GeV

K Adcox; S S Adler; N N Ajitanand; Y Akiba; J Alexander; L Aphecetche; Y Arai; S H Aronson; R Averbeck; T C Awes; K N Barish; P D Barnes; J Barrette; B Bassalleck; S Bathe; V Baublis; A Bazilevsky; S Belikov; F G Bellaiche; S T Belyaev; M J Bennett; Y Berdnikov; S Botelho; M L Brooks; D S Brown; N Bruner; D Bucher; H Buesching; V Bumazhnov; G Bunce; J Burward-Hoy; S Butsyk; T A Carey; P Chand; J Chang; W C Chang; L L Chavez; S Chernichenko; C Y Chi; J Chiba; M Chiu; R K Choudhury; T Christ; T Chujo; M S Chung; P Chung; V Cianciolo; B A Cole; D G D'Enterria; G David; H Delagrange; A Denisov; A Deshpande; E J Desmond; O Dietzsch; B V Dinesh; A Drees; A Durum; D Dutta; K Ebisu; Y V Efremenko; K El Chenawi; H En'yo; S Esumi; L Ewell; T Ferdousi; D E Fields; S L Fokin; Z Fraenkel; A Franz; A D Frawley; S-Y Fung; S Garpman; T K Ghosh; A Glenn; A L Godoi; Y Goto; S V Greene; M Grosse Perdekamp; S K Gupta; W Guryn; H-A Gustafsson; T Hachiya; J S Haggerty; H Hamagaki; A G Hansen; H Hara; E P Hartouni; R Hayano; N Hayashi; X He; T K Hemmick; J M Heuser; M Hibino; J C Hill; D S Ho; K Homma; B Hong; A Hoover; T Ichihara; K Imai; M S Ippolitov; M Ishihara; B V Jacak; W Y Jang; J Jia; B M Johnson; S C Johnson; K S Joo; S Kametani; J H Kang; M Kann; S S Kapoor; S Kelly; B Khachaturov; A Khanzadeev; J Kikuchi; D J Kim; H J Kim; S Y Kim; Y G Kim; W W Kinnison; E Kistenev; A Kiyomichi; C Klein-Boesing; S Klinksiek; L Kochenda; V Kochetkov; D Koehler; T Kohama; D Kotchetkov; A Kozlov; P J Kroon; K Kurita; M J Kweon; Y Kwon; G S Kyle; R Lacey; J G Lajoie; J Lauret; A Lebedev; D M Lee; M J Leitch; X H Li; Z Li; D J Lim; M X Liu; X Liu; Z Liu; C F Maguire; J Mahon; Y I Makdisi; V I Manko; Y Mao; S K Mark; S Markacs; G Martinez; M D Marx; A Masaike; F Matathias; T Matsumoto; P L McGaughey; E Melnikov; M Merschmeyer; F Messer; M Messer; Y Miake; T E Miller; A Milov; S Mioduszewski; R E Mischke; G C Mishra; J T Mitchell; A K Mohanty; D P Morrison; J M Moss; F Mühlbacher; M Muniruzzaman; J Murata; S Nagamiya; Y Nagasaka; J L Nagle; Y Nakada; B K Nandi; J Newby; L Nikkinen; P Nilsson; S Nishimura; A S Nyanin; J Nystrand; E O'Brien; C A Ogilvie; H Ohnishi; I D Ojha; M Ono; V Onuchin; A Oskarsson; L Osterman; I Otterlund; K Oyama; L Paffrath; A P T Palounek; V S Pantuev; V Papavassiliou; S F Pate; T Peitzmann; A N Petridis; C Pinkenburg; R P Pisani; P Pitukhin; F Plasil; M Pollack; K Pope; M L Purschke; I Ravinovich; K F Read; K Reygers; V Riabov; Y Riabov; M Rosati; A A Rose; S S Ryu; N Saito; A Sakaguchi; T Sakaguchi; H Sako; T Sakuma; V Samsonov; T C Sangster; R Santo; H D Sato; S Sato; S Sawada; B R Schlei; Y Schutz; V Semenov; R Seto; T K Shea; I Shein; T-A Shibata; K Shigaki; T Shiina; Y H Shin; I G Sibiriak; D Silvermyr; K S Sim; J Simon-Gillo; C P Singh; V Singh; M Sivertz; A Soldatov; R A Soltz; S Sorensen; P W Stankus; N Starinsky; P Steinberg; E Stenlund; A Ster; S P Stoll; M Sugioka; T Sugitate; J P Sullivan; Y Sumi; Z Sun; M Suzuki; E M Takagui; A Taketani; M Tamai; K H Tanaka; Y Tanaka; E Taniguchi; M J Tannenbaum; J Thomas; J H Thomas; T L Thomas; W Tian; J Tojo; H Torii; R S Towell; I Tserruya; H Tsuruoka; A A Tsvetkov; S K Tuli; H Tydesjö; N Tyurin; T Ushiroda; H W Van Hecke; C Velissaris; J Velkovska; M Velkovsky; A A Vinogradov; M A Volkov; A Vorobyov; E Vznuzdaev; H Wang; Y Watanabe; S N White; C Witzig; F K Wohn; C L Woody; W Xie; K Yagi; S Yokkaichi; G R Young; I E Yushmanov; W A Zajc; Z Zhang; S Zhou; PHENIX Collaboration

doi:10.1103/PhysRevLett.88.192303

Measurement of single electrons and implications for charm production in Au+Au collisions at square root[s(NN)] = 130 GeV

Phys Rev Lett. 2002 May 13;88(19):192303. doi: 10.1103/PhysRevLett.88.192303. Epub 2002 Apr 30.

Authors

K Adcox¹, S S Adler, N N Ajitanand, Y Akiba, J Alexander, L Aphecetche, Y Arai, S H Aronson, R Averbeck, T C Awes, K N Barish, P D Barnes, J Barrette, B Bassalleck, S Bathe, V Baublis, A Bazilevsky, S Belikov, F G Bellaiche, S T Belyaev, M J Bennett, Y Berdnikov, S Botelho, M L Brooks, D S Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, J Burward-Hoy, S Butsyk, T A Carey, P Chand, J Chang, W C Chang, L L Chavez, S Chernichenko, C Y Chi, J Chiba, M Chiu, R K Choudhury, T Christ, T Chujo, M S Chung, P Chung, V Cianciolo, B A Cole, D G D'Enterria, G David, H Delagrange, A Denisov, A Deshpande, E J Desmond, O Dietzsch, B V Dinesh, A Drees, A Durum, D Dutta, K Ebisu, Y V Efremenko, K El Chenawi, H En'yo, S Esumi, L Ewell, T Ferdousi, D E Fields, S L Fokin, Z Fraenkel, A Franz, A D Frawley, S-Y Fung, S Garpman, T K Ghosh, A Glenn, A L Godoi, Y Goto, S V Greene, M Grosse Perdekamp, S K Gupta, W Guryn, H-A Gustafsson, T Hachiya, J S Haggerty, H Hamagaki, A G Hansen, H Hara, E P Hartouni, R Hayano, N Hayashi, X He, T K Hemmick, J M Heuser, M Hibino, J C Hill, D S Ho, K Homma, B Hong, A Hoover, T Ichihara, K Imai, M S Ippolitov, M Ishihara, B V Jacak, W Y Jang, J Jia, B M Johnson, S C Johnson, K S Joo, S Kametani, J H Kang, M Kann, S S Kapoor, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, D J Kim, H J Kim, S Y Kim, Y G Kim, W W Kinnison, E Kistenev, A Kiyomichi, C Klein-Boesing, S Klinksiek, L Kochenda, V Kochetkov, D Koehler, T Kohama, D Kotchetkov, A Kozlov, P J Kroon, K Kurita, M J Kweon, Y Kwon, G S Kyle, R Lacey, J G Lajoie, J Lauret, A Lebedev, D M Lee, M J Leitch, X H Li, Z Li, D J Lim, M X Liu, X Liu, Z Liu, C F Maguire, J Mahon, Y I Makdisi, V I Manko, Y Mao, S K Mark, S Markacs, G Martinez, M D Marx, A Masaike, F Matathias, T Matsumoto, P L McGaughey, E Melnikov, M Merschmeyer, F Messer, M Messer, Y Miake, T E Miller, A Milov, S Mioduszewski, R E Mischke, G C Mishra, J T Mitchell, A K Mohanty, D P Morrison, J M Moss, F Mühlbacher, M Muniruzzaman, J Murata, S Nagamiya, Y Nagasaka, J L Nagle, Y Nakada, B K Nandi, J Newby, L Nikkinen, P Nilsson, S Nishimura, A S Nyanin, J Nystrand, E O'Brien, C A Ogilvie, H Ohnishi, I D Ojha, M Ono, V Onuchin, A Oskarsson, L Osterman, I Otterlund, K Oyama, L Paffrath, A P T Palounek, V S Pantuev, V Papavassiliou, S F Pate, T Peitzmann, A N Petridis, C Pinkenburg, R P Pisani, P Pitukhin, F Plasil, M Pollack, K Pope, M L Purschke, I Ravinovich, K F Read, K Reygers, V Riabov, Y Riabov, M Rosati, A A Rose, S S Ryu, N Saito, A Sakaguchi, T Sakaguchi, H Sako, T Sakuma, V Samsonov, T C Sangster, R Santo, H D Sato, S Sato, S Sawada, B R Schlei, Y Schutz, V Semenov, R Seto, T K Shea, I Shein, T-A Shibata, K Shigaki, T Shiina, Y H Shin, I G Sibiriak, D Silvermyr, K S Sim, J Simon-Gillo, C P Singh, V Singh, M Sivertz, A Soldatov, R A Soltz, S Sorensen, P W Stankus, N Starinsky, P Steinberg, E Stenlund, A Ster, S P Stoll, M Sugioka, T Sugitate, J P Sullivan, Y Sumi, Z Sun, M Suzuki, E M Takagui, A Taketani, M Tamai, K H Tanaka, Y Tanaka, E Taniguchi, M J Tannenbaum, J Thomas, J H Thomas, T L Thomas, W Tian, J Tojo, H Torii, R S Towell, I Tserruya, H Tsuruoka, A A Tsvetkov, S K Tuli, H Tydesjö, N Tyurin, T Ushiroda, H W Van Hecke, C Velissaris, J Velkovska, M Velkovsky, A A Vinogradov, M A Volkov, A Vorobyov, E Vznuzdaev, H Wang, Y Watanabe, S N White, C Witzig, F K Wohn, C L Woody, W Xie, K Yagi, S Yokkaichi, G R Young, I E Yushmanov, W A Zajc, Z Zhang, S Zhou; PHENIX Collaboration

Affiliation

¹ Vanderbilt University, Nashville, Tennessee 37235, USA.

PMID: 12005627
DOI: 10.1103/PhysRevLett.88.192303

Abstract

Transverse momentum spectra of electrons from Au+Au collisions at square root[s(NN)] = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semileptonic decays of charm. The yield of the electron signal dN(e)/dy for p(T) > 0.8 GeV/c is 0.025+/-0.004(stat)+/-0.010(syst) in central collisions, and the corresponding charm cross section is 380+/-60(stat)+/-200(syst) microb per binary nucleon-nucleon collision.