Abstract (data abstract)

Measurement of the $\Lambda$ and $\bar{\Lambda}$ particles in Au+Au collisions at $\sqrt{s_{NN}}$ = 130 GeV. We present results on the measurement of $\Lambda$ and $\bar{\Lambda}$ production in Au+Au collisions at $\sqrt{s_{NN}}$ = 130 GeV with the PHENIX detector at RHIC. The transverse momentum spectra were measured for minimum bias and for the $5\%$ most central events. The $\bar{\Lambda}$/$\Lambda$ 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.

Figure 2

Data from Fig. 2 of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t1

Transverse momentum spectra of $\Lambda$ and $\bar{\Lambda}$ for minimum-bias and for the $5\%$ most central events.
Figure 3a

Data from Fig. 3 of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t2

The ratio of $\bar{\Lambda}$/$\Lambda$ as a function of $p_T$.
Figure 3b

Data from Fig. 3 of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t3

The ratio of $\bar{\Lambda}$/$\Lambda$ as a function of the number of participants.
Figure 4a

Data from Fig. 4 of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t4

Spectra of inclusive $\Lambda$ ($\bar{\Lambda}$) for minimum-bias events.
Figure 4b

Data from Fig. 4 of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t5

Spectra of inclusive feed-down corrected protons (antiprotons) for minimum-bias events.
Table Ia

Data from Table I of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t6

Inclusive $\Lambda$ and feed-down corrected proton yields for minimum bias and for the 5% most central events. Systematic errors are...
Table Ib

Data from Table I of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t7

Inclusive $\Lambda$ and feed-down corrected average transverse momentum for minimum bias and for the 5% most central events. Systematic errors...
Table Ic

Data from Table I of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t8

Inclusive $\Lambda$ and feed-down corrected slope parameters for minimum bias and for the 5% most central events. Systematic errors are...
Table II

Data from Table II of PRL 89, 092302 (2002)

10.17182/hepdata.139716.v1/t9

Total measured and predicted baryon yields for minimum-bias and for the 5% most central events. The proton yields are corrected...

Figure 2

Figure 3a

Figure 3b

Figure 4a

Figure 4b

Table Ia

Table Ib

Table Ic

Table II

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