1. Measurement of single electrons and implications for charm production in Au+Au collisions at $\sqrt {s_{NN}}$ = 130 GeV
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Adcox, K., Adler, S.S., N. Ajitanand, N., Akiba, Y., Alexander, J., Aphecetche, Laurent, Arai, Y., Aronson, S.H., Averbeck, R., Awes, T.C., Barish, K.N., Barnes, P.D., Barrette, J., Bassalleck, B., Bathe, S., Baublis, V., Bazilevsky, A., Belikov, S., Bellaiche, F.G., Belyaev, S.T., Bennett, M.J., Berdnikov, Y., Botelho, S., Brooks, M.L., S. Brown, D., Bruner, N., Bucher, D., Buesching, H., Bumazhnov, V., Bunce, G., Burward-Hoy, J., Butsyk, S., Carey, T.A., Chand, P., Chang, J., Chang, W.C., L. Chavez, L., Chernichenko, S., Chi, C.Y., Chiba, J., Chiu, M., Choudhury, R.K., Christ, T., Chujo, T., S. Chung, M., Chung, P., Cianciolo, V., A. Cole, B., D'Enterria, D.G., David, G., Delagrange, H., Denisov, A., Deshpande, A., Desmond, E.J., Dietzsch, O., Dinesh, B.V., Drees, A., Durum, A., Dutta, D., Ebisu, K., Efremenko, Y.V., El Chenawi, K., En'Yo, H., Esumi, S., Ewell, L., Ferdousi, T., Fields, D.E., Fokin, S.L., Fraenkel, Z., Franz, A., Frawley, A.D., Fung, S.-Y., Garpman, S., K. Ghosh, T., Glenn, A., Godoi, A.L., Goto, Y., Greene, S.V., Grosse Perdekamp, M., Gupta, S.K., Guryn, W., Gustafsson, H.-Å., Hachiya, T., Haggerty, J.S., Hamagaki, H., Hansen, A.G., Hara, H., Hartouni, E.P., Hayano, R., Hayashi, N., He, X., Hemmick, T.K., Heuser, J.M., Hibino, M., Hill, J.C., Ho, D.S., Homma, K., Hong, B., Hoover, A., Ichihara, T., Imai, K., S. Ippolitov, M., Ishihara, M., Jacak, B.V., Jang, W.Y., Jia, J., Johnson, B.M., Johnson, S.C., Joo, K.S., Kametani, S., Kang, J.H., Kann, M., Kapoor, S.S., Kelly, Steven, Khachaturov, B., Khanzadeev, A., Kikuchi, J., Kim, D.J., Kim, H.J., Kim, S.Y., Kim, Y.G., Kinnison, W.W., Kistenev, E., Kiyomichi, A., Klein-Boesing, C., Klinksiek, S., Kochenda, L., Kochetkov, V., Koehler, D., Kohama, T., Kotchetkov, D., Kozlov, A., Kroon, P.J., Kurita, K., Kweon, M.J., Kwon, Y., Kyle, G.S., Lacey, R., Lajoie, J.G., Lauret, J., Lebedev, A., Lee, D.M., Leitch, M.J., Li, X.H., Li, Zhenyu, Lim, D.J., Liu, M.X., Liu, X., Liu, Z., Maguire, C.F., Mahon, J., Makdisi, Y.I., Manko, V.I., Mao, Y., Mark, S.K., Markacs, S., Martinez Garcia, Gines, Marx, M.D., Masaike, A., Matathias, F., Matsumoto, T., McGaughey, P.L., Melnikov, E., Merschmeyer, M., Messer, F., Messer, M., Miake, Y., Miller, T.E., Milov, A., Mioduszewski, S., Mischke, R.E., Mishra, G.C., Mitchell, J.T., Mohanty, A.K., Morrison, D.P., Moss, J.M., Mühlbacher, F., Muniruzzaman, M., Murata, J., Nagamiya, S., Nagasaka, Y., Nagle, J.L., Nakada, Y., Nandi, B.K., Newby, J., Nikkinen, L., Nilsson, P., Nishimura, S., Nyanin, A.S., Nystrand, J., O'Brien, E., Ogilvie, C.A., Ohnishi, H., Ojha, I.D., Ono, M., Onuchin, V., Oskarsson, A., Österman, L., Otterlund, I., Oyama, K., Paffrath, L., Palounek, A.P.T., Pantuev, V.S., Papavassiliou, V., Pate, S.F., Peitzmann, T., Petridis, A.N., Pinkenburg, C., Pisani, R.P., Pitukhin, P., Plasil, F., Pollack, M., Pope, K., Purschke, M.L., Ravinovich, I., Read, K.F., Reygers, K., Riabov, V., Riabov, Y., Rosati, M., Rose, A.A., Ryu, S.S., Saito, N., Sakaguchi, A., Sakaguchi, T., Sako, H., Sakuma, T., Samsonov, V., Sangster, T.C., Santo, R., Sato, H.D., Sato, S., Sawada, S., Schlei, B.R., Schutz, Y., Semenov, V., Seto, R., Shea, T.K., Shein, I., Shibata, T.-A., Shigaki, K., Shiina, T., Shin, Y.H., Sibiriak, I.G., Silvermyr, D., Sim, K.S., Simon-Gillo, J., Singh, C.P., Singh, V., Sivertz, M., Soldatov, A., Soltz, R.A., Sorensen, S., Stankus, P.W., Starinsky, N., Steinberg, P., Stenlund, E., Ster, A., Stoll, S.P., Sugioka, M., Sugitate, T., Sullivan, J.P., Sumi, Y., Sun, Z., Suzuki, M., Takagui, E.M., Taketani, A., Tamai, M., Tanaka, K.H., Tanaka, Y., Taniguchi, E., Tannenbaum, M.J., Thomas, J., Thomas, J.H., Thomas, T.L., Tian, W., Tojo, J., Torii, H., Towell, R.S., Tserruya, I., Tsuruoka, H., Tsvetkov, A.A., Tuli, S.K., Tydesjö, H., Tyurin, N., Ushiroda, T., Van Hecke, H.W., Velissaris, C., Velkovska, J., Velkovsky, M., Vinogradov, A.A., Volkov, M.A., Vorobyov, A., Vznuzdaev, E., Wang, H., Watanabe, Y., White, S.N., Witzig, C., Wohn, F.K., Woody, C.L., Xie, W., Yagi, K., Yokkaichi, S., Young, G.R., Yushmanov, I.E., Zajc, W.A., Zhang, Zhen, Zhou, S., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and PHENIX
- Subjects
25.75.Dw ,High Energy Physics::Phenomenology ,Nuclear Theory ,FOS: Physical sciences ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear Experiment - Abstract
Transverse momentum spectra of electrons from Au+Au collisions at sqrt(s_NN) = 130 GeV have been measured by the PHENIX experiment at RHIC. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semi-leptonic 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 (sys.) in central collisions, and the corresponding charm cross section is 380 +/- 60 (stat.) +/- 200 (sys.) micro barns per binary nucleon-nucleon collision., 6 pages, RevTeX 3, 4 figures, 1 table, 308 authors, accepted by Phys. Rev. Lett. on 29 March 2002. v2 has minor changes made in response to referee comments. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (will be made) publicly available at http://www.phenix.bnl.gov/phenix/WWW/run/phenix/papers.html
- Published
- 2002
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