Midrapidity Lambda and Lambda(macro) production in Au+Au collisions at the square root of [s(NN)]=130 GeV. uri icon

abstract

  • We report the first measurement of strange (Lambda) and antistrange (Lambda macro) baryon production from square root of [s(NN)]=130 GeV Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transverse mass distributions at midrapidity are presented as a function of centrality. The yield of Lambda and Lambda; hyperons is found to be approximately proportional to the number of negative hadrons. The production of Lambda; hyperons relative to negative hadrons increases very rapidly with transverse momentum. The magnitude of the increase cannot be described by existing hadronic string fragmentation models alone.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Adler, C., Ahammed, Z., Allgower, C., Amonett, J., Anderson, B. D., Anderson, M., ... STAR Collaboration.

citation count

  • 158

complete list of authors

  • Adler, C||Ahammed, Z||Allgower, C||Amonett, J||Anderson, BD||Anderson, M||Averichev, GS||Balewski, J||Barannikova, O||Barnby, LS||Baudot, J||Bekele, S||Belaga, VV||Bellwied, R||Berger, J||Bichsel, H||Billmeier, A||Bland, LC||Blyth, CO||Bonner, BE||Boucham, A||Brandin, A||Bravar, A||Cadman, RV||Caines, H||Calderón de la Barca Sánchez, M||Cardenas, A||Carroll, J||Castillo, J||Castro, M||Cebra, D||Chaloupka, P||Chattopadhyay, S||Chen, Y||Chernenko, SP||Cherney, M||Chikanian, A||Choi, B||Christie, W||Coffin, JP||Cormier, TM||Cramer, JG||Crawford, HJ||Deng, WS||Derevschikov, AA||Didenko, L||Dietel, T||Draper, JE||Dunin, VB||Dunlop, JC||Eckardt, V||Efimov, LG||Emelianov, V||Engelage, J||Eppley, G||Erazmus, B||Fachini, P||Faine, V||Faivre, J||Filimonov, K||Finch, E||Fisyak, Y||Flierl, D||Foley, KJ||Fu, J||Gagliardi, CA||Gagunashvili, N||Gans, J||Gaudichet, L||Germain, M||Geurts, F||Ghazikhanian, V||Grachov, O||Grigoriev, V||Guedon, M||Gushin, E||Hallman, TJ||Hardtke, D||Harris, JW||Henry, TW||Heppelmann, S||Herston, T||Hippolyte, B||Hirsch, A||Hjort, E||Hoffmann, GW||Horsley, M||Huang, HZ||Humanic, TJ||Igo, G||Ishihara, A||Ivanshin, Yu I||Jacobs, P||Jacobs, WW||Janik, M||Johnson, I||Jones, PG||Judd, EG||Kaneta, M||Kaplan, M||Keane, D||Kiryluk, J||Kisiel, A||Klay, J||Klein, SR||Klyachko, A||Konstantinov, AS||Kopytine, M||Kotchenda, L||Kovalenko, AD||Kramer, M||Kravtsov, P||Krueger, K||Kuhn, C||Kulikov, AI||Kunde, GJ||Kunz, CL||Kutuev, R Kh||Kuznetsov, AA||Lakehal-Ayat, L||Lamont, MAC||Landgraf, JM||Lange, S||Lansdell, CP||Lasiuk, B||Laue, F||Lauret, J||Lebedev, A||Lednický, R||Leontiev, VM||LeVine, MJ||Li, Q||Lindenbaum, SJ||Lisa, MA||Liu, F||Liu, L||Liu, Z||Liu, QJ||Ljubicic, T||Llope, WJ||LoCurto, G||Long, H||Longacre, RS||Lopez-Noriega, M||Love, WA||Ludlam, T||Lynn, D||Ma, J||Majka, R||Margetis, S||Markert, C||Martin, L||Marx, J||Matis, HS||Matulenko, Yu A||McShane, TS||Meissner, F||Melnick, Yu||Meschanin, A||Messer, M||Miller, ML||Milosevich, Z||Minaev, NG||Mitchell, J||Moiseenko, VA||Moore, CF||Morozov, V||de Moura, MM||Munhoz, MG||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||Panebratsev, Y||Panitkin, SY||Pavlinov, AI||Pawlak, T||Perevoztchikov, V||Peryt, W||Petrov, VA||Planinic, M||Pluta, J||Porile, N||Porter, J||Poskanzer, AM||Potrebenikova, E||Prindle, D||Pruneau, C||Putschke, J||Rai, G||Rakness, G||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||Rykov, V||Sakrejda, I||Salur, S||Sandweiss, J||Saulys, AC||Savin, I||Schambach, J||Scharenberg, RP||Schmitz, N||Schroeder, LS||Schüttauf, A||Schweda, K||Seger, J||Seliverstov, D||Seyboth, P||Shahaliev, E||Shestermanov, KE||Shimanskii, SS||Shvetcov, VS||Skoro, G||Smirnov, N||Snellings, R||Sorensen, P||Sowinski, J||Spinka, HM||Srivastava, B||Stephenson, EJ||Stock, R||Stolpovsky, A||Strikhanov, M||Stringfellow, B||Struck, C||Suaide, AAP||Sugarbaker, E||Suire, C||Sumbera, M||Surrow, B||Symons, TJM||de Toledo, A Szanto||Szarwas, P||Tai, A||Takahashi, J||Tang, AH||Thomas, JH||Thompson, M||Tikhomirov, V||Tokarev, M||Tonjes, MB||Trainor, TA||Trentalange, S||Tribble, RE||Trofimov, V||Tsai, O||Ullrich, T||Underwood, DG||Van Buren, G||VanderMolen, AM||Vasilevski, IM||Vasiliev, AN||Vigdor, SE||Voloshin, SA||Wang, F||Ward, H||Watson, JW||Wells, R||Westfall, GD||Whitten, C||Wieman, H||Willson, R||Wissink, SW||Witt, R||Wood, J||Xu, N||Xu, Z||Yakutin, AE||Yamamoto, E||Yang, J||Yepes, P||Yurevich, VI||Zanevski, YV||Zborovský, I||Zhang, H||Zhang, WM||Zoulkarneev, R||Zubarev, AN

publication date

  • August 2002