Chen, Z.
E-802
hep-ex
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Measurement of particle production in proton induced reactions at 14.6-GeV/c

The E-802 collaboration Abbott, T. ; Akiba, Y. ; Beavis, D. ; et al.
Phys.Rev.D 45 (1992) 3906-3920, 1992.
Inspire Record 323473 DOI 10.17182/hepdata.3830

Particle production in proton-induced reactions at 14.6 GeV/c on Be, Al, Cu, and Au targets has been systematically studied using the E-802 spectrometer at the BNL-Alternating Gradient Synchrotron. Particles are measured in the angular range from 5° to 58° and identified up to momenta of 5, 3.5, and 8 GeV/c for pions, kaons, and protons, respectively. Mechanisms for particle production are discussed in comparison with heavy-ion-induced reactions at the same incident energy per nucleon.

105 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Anti-proton production in 14.6-A/GeV/c Si + A collisions

The E-802 collaboration Abbott, T. ; Akiba, Y. ; Beavis, D. ; et al.
Phys.Lett.B 271 (1991) 447-452, 1991.
Inspire Record 318378 DOI 10.17182/hepdata.29302

Antiproton production cross sections have been measured for minimum bias and central Si+Al and Si+Au collisions at 14.6 A GeV c . The data presented cover the range of transverse momentum from 0.3 to 1.2 GeV c and lab rapidities from 1.1 to 1.7 units. The relative p π − and p K − yields are found to be the smallest for the heaviest system measured, central Si+Au collisions. For these collisions, the p π − ratio, determined from integrated yields for 1.1⩽ y ⩽1.7, is (0.84±0.07)×10 −3 . In the same rapidity interval, the average antiproton inverse m ⊥ slope is 141±14 MeV for central Si+Al and central Si+Au collisions.

2 data tables
Table 1

Definition of the CENTRAL and MINIMUM BIAS events see text.

Table 2

Definition of the CENTRAL and MINIMUM BIAS events see text.


Global transverse energy distributions in Si + Al, Au at 14.6-A/GeV/c and Au + Au at 11.6-A.GeV/c

The E-802 collaboration Ahle, L. ; Akiba, Y. ; Beavis, D. ; et al.
Phys.Lett.B 332 (1994) 258-264, 1994.
Inspire Record 374156 DOI 10.17182/hepdata.28663

Measurements of the global transverse energy distributions dσ / dE T and dE T / dη using the new AGS beam of 197 Au at 11.6 A GeV/ c on a Au target, as well as a beam of 28 Si at 14.6 A GeV/ c on Al and Au targets, are presented for a leadglass detector with acceptance 1.3 ≤ η ≤ 2.4 and 0 ≤ φ < 2 π . The dσ / dE T spectra are observed to have different shapes for the different systems and simple energy rescaling does not account for the projectile dependence. The Au+Au dσ / dE T spectrum is satisfactorily constructed from the upper edge of Si+Au by the geometric Wounded Projectile Nucleon Model after applying a correction for the beam energy.

6 data tables
Table 1

Incident energy is 14.6 GeV/nucleon.

Table 2

Incident energy is 14.6 GeV/nucleon.

Table 3

Incident energy is 11.6 GeV/nucleon.

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