Physics and Astronomy
Journal or Book Title
Physical Review Letters
We present results on the measurement of Lambda and Anti-Lambda production in Au+Au collisions at root s(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 Anti-Lambda/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.
American Physical Society
Adcox, K.; Belikov, Sergey; Hill, John C.; Lajoie, John G.; Lebedev, Alexandre; Ogilvie, Craig; Petridis, Athanasios N.; Rosati, Marzia; Wohn, F. K.; et al.; and PHENIX Collaboration, "Measurement of Lambda and Anti-Lambda particles in Au plus Au collisions at root s(NN)=130 GeV" (2002). Physics and Astronomy Publications. 369.