1. Kaon production and kaon to pion ratio in Au + Au collisions at sNN=130 GeV
- Author
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Adler, C., Ahammed, Z., Allgower, C., Amonett, J., Anderson, B.D., Anderson, M., Averichev, G.S., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Bekele, S., Belaga, V.V., Bellwied, R., Berger, J., Bichsel, H., Bhardwaj, S., Billmeier, A., Bland, L.C., Blyth, C.O., Bonner, B.E., Boucham, A., Brandin, A.V., Bravar, A., Cadman, R., Caines, H., Calderon De La Barca Sanchez, M., Cardenas, A., Carroll, J., Castillo, J., Castro, M., Cebra, D., Chaloupka, P., Chattopdhyay, S., Chen, Y., Chernenko, S.P., Cherney, M., Chikanian, A., Choi, B., Christie, W., Coffin, J.P., Cormier, T.M., Cramer, J.G., Crawford, H.J., Deng, W.S., Derevschikov, A.A., Didenko, L., Dietel, T., Draper, J.E., Dunin, V.B., Dunlop, J.C., Eckardt, V., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Fachini, P., Faine, V., Filimonov, K., Finch, E., Fisyak, Y., Flierl, D., Foley, K.J., Fu, J., Gagliardi, C.A., Gagunashvili, N., Gans, J., Gaudichet, L., Germain, Marie, Geurts, F., Ghazikhanian, V., Grachov, O., Grigoriev, V., Guedon, M., Gushin, E., Hallman, T.J., Hardtke, D., Harris, J.W., Henry, T.W., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G.W., Horsley, M., Huang, H.Z., Humanic, T.J., Igo, G., Ishihara, A., Ivanshin, Yu.I., Jacobs, P., Jacobs, W.W., Janik, M., Johnson, I., Jones, P.G., Judd, E.G., Kaneta, S., Kaplan, M., Keane, D., Kiryluk, J., Kisiel, A., Klay, J., Klein, S.R., Klyachko, A., Konstantinov, A.S., Kopytine, M., Kotchenda, L., Kovalenko, A.D., Kramer, M., Kravtsov, P., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kunde, G.J., Kunz, C.L., Kutuev, R.Kh., Kuznetsov, A.A., Lakedhal-Ayat, L., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lansdell, C.P., Lasiuk, B., Laue, F., Lebedev, A., Lednicky, R., Leontiev, V.M., LeVine, M.J., Li, Q., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, L., Liu, Z., Liu, Q.J., Ljubicic, T., Llope, W.J., LoCurto, G., Long, H., Longacre, R.S., Lopez-Noriega, M., Love, W.A., Ludlam, T., Lynn, D., Ma, J., Majka, R., Margetis, S., Markert, C., Martin, Lilian, Marx, J.N., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meissner, F., Melnick, Yu., Meschanin, A., Messer, M., Miller, M.L., Milosevich, Z., Minaev, N.G., Mitchell, J., Moiseenko, V.A., Moore, C.F., Morozov, V., De Moura, M.M., Munhoz, M.G., Nelson, J.M., Nevski, P., Nikitin, V.A., Nogach, L.V., Norman, B., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pandey, S.U., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Perevoztchikov, V., Peryt, W., Petrov, V.A., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Ravel, O., Ray, R.L., Razin, S.V., Reichhold, D., Reid, J.G., Retiere, F., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Rykov, V., Sakrejda, I., Salur, S., Sandweiss, J., Saulys, A.C., Savin, I., Schambach, J., Scharenberg, R.P., Schmitz, N., Schroeder, L.S., Schüttauf, A., Schweda, K., Seger, J., Seliverstovg, D., Seyboth, P., Shahaliev, E., Shestermanov, K.E., Shimanskiy, S.S., Shvetcov, V.S., Skoro, G., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H.M., Srivastava, B., Stephenson, E.J., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A.A.P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Szarwas, P., Tai, A., Takahashi, J., Tang, A.H., Thomas, J.H., Thompson, M., Tikhomirov, S., Tokarev, M., Tonjes, M.B., Trainor, T.A., Trentalange, S., Tribble, R.E., Trofimov, V., Tsai, O., Ullrich, T., Underwood, D.G., Van Buren, G., VanderMolen, A.M., Vasilevski, I.M., Vasiliev, A.N., Vigdor, S.E., Voloshin, S.A., Wang, F., Ward, H., Watson, J.W., Wells, R., Westfall, G.D., Whitten Jr., C., Wieman, H., Willson, R., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Yakutin, A.E., Yamamoto, E., Yang, J., Yepes, P., Yurevich, V.I., Zanevsky, Y.V., Zborovsky, I., Zhang, H., Zhang, W.M., Zoulkarneev, R., Zubarev, A.N., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and 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)
- Subjects
Nuclear reaction ,Physics ,Nuclear and High Energy Physics ,Meson ,010308 nuclear & particles physics ,Nuclear Theory ,Hadron ,FOS: Physical sciences ,Strangeness production ,Inverse ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,Charged particle ,Nuclear physics ,Pion ,0103 physical sciences ,Transverse mass ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,010306 general physics - Abstract
Mid-rapidity transverse mass spectra and multiplicity densities of charged and neutral kaons are reported for Au+Au collisions at $\snn$=130 GeV at RHIC. The spectra are exponential in transverse mass, with an inverse slope of about 280 MeV in central collisions. The multiplicity densities for these particles scale with the negative hadron pseudo-rapidity density. The charged kaon to pion ratios are $K^+/\pi^- = 0.161 \pm 0.002 {\rm (stat)} \pm 0.024 {\rm (syst)}$ and $K^-/\pi^- = 0.146 \pm 0.002 {\rm (stat)} \pm 0.022 {\rm (syst)}$ for the most central collisions. The $K^+/\pi^-$ ratio is lower than the same ratio observed at the SPS while the $K^-/\pi^-$ is higher than the SPS result. Both ratios are enhanced by about 50% relative to p+p and $\bar{\rm p}$+p collision data at similar energies., Comment: 6 pages, 3 figures, 1 table
- Published
- 2004