Measurement of Lambda and (Lambda)over-bar particles in Au plus Au collisions at root s(NN)=130 GeV

Summary, in English

We present results on the measurement of Lambda and (&ULambda;) over bar production in Au+Au collisions at roots(NN)=130 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. The transverse momentum spectra were measured for minimum bias and for the 5% most central events. The (&ULambda;) over bar/Lambda ratios are constant as a function of p(T) and the number of participants. The measured net Lambda density is significantly larger than predicted by models based on hadronic strings (e.g., HIJING) but in approximate agreement with models which include the gluon-junction mechanism.

• Author: K Adcox; SS Adler; NN Ajitanand; Y Akiba; J Alexander; L Aphecetche; Y Arai; SH Aronson; R Averbeck; TC Awes; KN Barish; PD Barnes; J Barrette; B Bassalleck; S Bathe; V Baublis; A Bazilevsky; S Belikov; FG Bellaiche; ST Belyaev; MJ Bennett; Y Berdnikov; S Botelho; ML Brooks; DS Brown; N Bruner; D Bucher; H Buesching; V Bumazhnov; G Bunce; J Burward-Hoy; S Butsyk; TA Carey; P Chand; J Chang; WC Chang; LL Chavez; S Chernichenko; CY Chi; J Chiba; M Chiu; RK Choudhury; T Christ; T Chujo; MS Chung; P Chung; V Cianciolo; BA Cole; DG D'Enterria; G David; H Delagrange; A Denisov; A Deshpande; EJ Desmond; O Dietzsch; BV Dinesh; A Drees; A Durum; D Dutta; K Ebisu; YV Efremenko; K El Chenawi; H En'yo; S Esumi; L Ewell; T Ferdousi; DE Fields; SL Fokin; Z Fraenkel; A Franz; AD Frawley; SY Fung; Sten Garpman; TK Ghosh; A Glenn; AL Godoi; Y Goto; SV Greene; MG Perdekamp; SK Gupta; W Guryn; Hans-Åke Gustafsson; JS Haggerty; H Hamagaki; AG Hansen; H Hara; EP Hartouni; R Hayano; N Hayashi; X He; TK Hemmick; JM Heuser; M Hibino; JC Hill; DS Ho; K Homma; B Hong; A Hoover; T Ichihara; K Imai; MS Ippolitov; M Ishihara; BV Jacak; WY Jang; J Jia; BM Johnson; SC Johnson; KS Joo; S Kametani; JH Kang; M Kann; SS Kapoor; S Kelly; B Khachaturov; A Khanzadeev; J Kikuchi; DJ Kim; HJ Kim; SY Kim; YG Kim; WW Kinnison; E Kistenev; A Kiyomichi; C Klein-Boesing; S Klinksiek; L Kochenda; V Kochetkov; D Koehler; T Kohama; D Kotchetkov; A Kozlov; PJ Kroon; K Kurita; MJ Kweon; Y Kwon; GS Kyle; R Lacey; JG Lajoie; J Lauret; A Lebedev; DM Lee; MJ Leitch; XH Li; Z Li; DJ Lim; MX Liu; X Liu; Z Liu; CF Maguire; J Mahon; YI Makdisi; VI Manko; Y Mao; SK Mark; S Markacs; G Martinez; MD Marx; A Masaike; F Matathias; T Matsumoto; PL McGaughey; E Melnikov; M Merschmeyer; F Messer; M Messer; Y Miake; TE Miller; A Milov; S Mioduszewski; RE Mischke; GC Mishra; JT Mitchell; AK Mohanty; DP Morrison; JM Moss; F Muhlbacher; D Mukhopadhyay; M Muniruzzaman; J Murata; S Nagamiya; Y Nagasaka; JL Nagle; Y Nakada; BK Nandi; J Newby; L Nikkinen; Pål Nilsson; S Nishimura; AS Nyanin; Joakim Nystrand; E O'Brien; CA Ogilvie; H Ohnishi; ID Ojha; M Ono; V Onuchin; Anders Oskarsson; Lennart Österman; Ingvar Otterlund; K Oyama; L Paffrath; D Pal; APT Palounek; VS Pantuev; V Papavassiliou; SF Pate; T Peitzmann; AN Petridis; C Pinkenburg; RP Pisani; P Pitukhin; F Plasil; M Pollack; K Pope; ML Purschke; I Ravinovich; KF Read; K Reygers; V Riabov; Y Riabov; M Rosati; AA Rose; SS Ryu; N Saito; A Sakaguchi; T Sakaguchi; H Sako; T Sakuma; V Samsonov; TC Sangster; R Santo; HD Sato; S Sato; S Sawada; BR Schlei; Y Schutz; V Semenov; R Seto; TK Shea; I Shein; TA Shibata; K Shigaki; T Shiina; YH Shin; IG Sibiriak; David Silvermyr; KS Sim; J Simon-Gillo; CP Singh; V Singh; M Sivertz; A Soldatov; RA Soltz; S Sorensen; PW Stankus; N Starinsky; P Steinberg; Evert Stenlund; A Ster; SP Stoll; M Sugioka; T Sugitate; JP Sullivan; Y Sumi; Z Sun; M Suzuki; EM Takagui; A Taketani; M Tamai; KH Tanaka; Y Tanaka; E Taniguchi; MJ Tannenbaum; J Thomas; JH Thomas; TL Thomas; W Tian; J Tojo; H Torii; RS Towell; I Tserruya; H Tsuruoka; AA Tsvetkov; SK Tuli; Henrik Tydesjö; N Tyurin; T Ushiroda; HW van Hecke; C Velissaris; J Velkovska; M Velkovsky; AA Vinogradov; MA Volkov; A Vorobyov; E Vznuzdaev; H Wang; Y Watanabe; SN White; C Witzig; FK Wohn; CL Woody; W Xie; K Yagi; S Yokkaichi; GR Young; IE Yushmanov; WA Zajc; Z Zhang; S Zhou; S Zhou
• Department/s: Particle and nuclear physics
• Publishing year: 2002
• Language: English
• Publication/Series: Physical Review Letters
• Volume: 89
• Issue: 9
• Links: http://dx.doi.org/10.1103/PhysRevLett.89.092302
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1079-7114