Devinski, P.A.
DSIG/DM
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First Observation of Dielectron Production at the Bevalac

The DLS collaboration Roche, G. ; Claesson, G. ; Hendrie, D. ; et al.
Phys.Rev.Lett. 61 (1988) 1069-1072, 1988.
Inspire Record 268588 DOI 10.17182/hepdata.38105

We have begun a program to measure dielectron production in p-nucleus and nucleus-nucleus collisions at the LBL Bevalac. Results are presented for the reaction p+Be at 4.9 GeV. For the first time, direct dilepton production is observed below 10 GeV incident energy. The cross sections are discussed and compared to previous data at higher energies. The observation of a structure at a mass of about 275 MeV suggests that pion annihilation may be the dominant production mechanism in this mass range.

2 data tables
Table 1

A IS TARGET ATOMIC MASS NUMBER.

Table 2

A IS TARGET ATOMIC MASS NUMBER.


The Production of Massive Muon Pairs in $\pi^-$ Nucleus Collisions

Greenlee, H.B. ; Frisch, Henry J. ; Grosso-Pilcher, C. ; et al.
Phys.Rev.Lett. 55 (1985) 1555, 1985.
Inspire Record 17013 DOI 10.17182/hepdata.20316

We present measurements of the differential cross section for the production of massive muon pairs in 225-GeV/c π−-nucleus collisions. We have used the data between the ψ and ϒ resonances in the framework of the Drell-Yan quark-antiquark annihilation model to predict the behavior of the cross section in the high-mass (mμμ>11 GeV/c2) region. The data are consistent with this extrapolation provided that a QCD leading-logarithmic evolution is included in the structure functions.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Inclusive Slow Proton and $\Delta^{++}$ (1236) Resonance Production in $\pi^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Chliapnikov, P.V. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 494, 1980.
Inspire Record 144016 DOI 10.17182/hepdata.18016

None

15 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Systematic Study of K pi Production in the Reaction K+- p --> K0(s) pi+- p: Technique and Measurements at 10-GeV/c

Baldi, R. ; Bohringer, T. ; Dorsaz, P.A. ; et al.
Nucl.Phys.B 134 (1978) 365-391, 1978.
Inspire Record 122145 DOI 10.17182/hepdata.8292

A two-arm spectrometer for simple event topologies is described. Its main characteristics are: (i) large solid-angle acceptance for the forward emitted particles, owing to the absence of magnetic-momentum analysis; (ii) high-resolution time-of-flight measurement of the recoil proton, in the momentum-transfer range 0.05 < | t | < 1 (GeV/ c ) 2 ; (iii) high data-taking rate and on-line pattern recognition.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

K*(892)+ REGION.

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