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Production of Hadrons with Large Transverse Momentum at 200-GeV and 300-GeV.

Cronin, J.W. ; Frisch, Henry J. ; Shochet, M.J. ; et al.

Phys.Rev.Lett. 31 (1973) 1426-1429, 1973.

Inspire Record 81959 DOI 10.17182/hepdata.21382

Differential cross sections as a function of transverse momentum are presented for the production at ∼90° (in the c.m. system) of π±, K±, p, and p¯ in p-nucleus collisions at incident proton energies of 200 and 300 GeV.

4 data tables

Table 1

No description provided.

Table 2

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Table 3

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Production of Massive Muon Pairs by 300-GeV and 400-GeV Protons

Kluberg, L. ; Piroue, P.A. ; Sumner, Richard L. ; et al.

Phys.Rev.Lett. 37 (1976) 1451, 1976.

Inspire Record 4051 DOI 10.17182/hepdata.1201

We have observed muon pairs with effective masses in the range 7<~Mμμ<~11 GeV/c2 produced by 300- and 400-GeV protons incident on a Cu target at Fermilab. The production cross section per nucleon, dσdMμμ, for 400-GeV incident protons is found to fall from 1 × 10−36 cm2/(GeV/c2) at Mμμ=7.7 GeV/c2 to 2.7 × 10−38 cm2/(GeV/c2) at Mμμ=11.2 GeV/c2. We find that a significant fraction of the observed direct single muons come from high-mass dimuons.

12 data tables

Table 1

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Test of Scaling in Muon Pair Production by Hadrons

Antreasyan, D. ; Cronin, J.W. ; Frisch, Henry J. ; et al.

Phys.Rev.Lett. 39 (1977) 906, 1977.

Inspire Record 5448 DOI 10.17182/hepdata.20946

We have measured the inclusive production of massive dimuons (7<~Mμμ<~11 GeV/c2) by 200-, 300-, and 400-GeV protons incident on Cu in order to check whether the dimensionless cross section Mμμ3[dσdMμμdy]y=0 is a function of Mμμ2s alone, where s is the square of the c.m. energy. The results support the scaling hypothesis.

3 data tables

Table 1

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Table 2

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Table 3

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A PARTIAL WAVE ANALYSIS OF THE (K pi pi) SYSTEM IN THE REACTION pi- p ---> (K+ pi- pi0) LAMBDA AT 3.95-GeV/c

The CERN-College de France-Madrid-Stockholm collaboration Fernandez, C. ; Aguilar-Benitez, M. ; Cerrada, M. ; et al.

Z.Phys.C 16 (1982) 95, 1982.

Inspire Record 178875 DOI 10.17182/hepdata.16389

Results from a partial wave analysis of theKππ system produced in the hypercharge exchange reaction π−p→(K+π−π0)Λ at 3.95 GeV/c are presented. SignificantQ1 production is observed but no evidence is found forQ2 production thus confirming the results obtained in a previous decay Dalitz plot analysis of the same reaction. The relative phase behaviour of the 1+(Kϱ) partial waves obtained with the present analysis provides additional confirmation of the resonance interpretation of theQ1 enhancement. Information is also obtained about its production properties and the role played by the Λ polarization in the hypercharge exchange reaction. This is compared with the results obtained in the reactionK−p→(π+π−π0)Λ at 4 GeV/c.

6 data tables

Table 1

LAMBDA POLARIZATION CALCULATED AS AVERAGE POLARIZATION OF ALL 1 + (K RHO0) PARTIAL WAVES IN THE QLOW(1240) REGION.

Table 2

SPIN PARITY CONTENT OF (K PI PI) SYSTEM.

Table 3

CONTRIBUTION TO THE TOTAL JP=1+ INTENSITY FROM THE K* AND RHO ISOBARS.

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Forward Production of Charm States and Prompt Single Muons in 350-{GeV} $p$ Fe Interactions

Ritchie, J.L. ; Bodek, A. ; Breedon, R. ; et al.

Phys.Lett.B 126 (1983) 499, 1983.

Inspire Record 189126 DOI 10.17182/hepdata.30702

The forward production of charm states in 350 GeV p-Fe interactions has been studied via the production of prompt single muons with momentum p ≳ 20 GeV/ c . The data indicate equal production of single μ + and μ − events. The observed momentum distributions can be fit with the hypothesis that D mesons are produced with an invariant cross section proportional to (1 − x F ) 5.0±0.8 exp[−(2 ± 0.3) P t ] and do not favor a large diffractive cross section predicted by intrinsic charm models. Extrapolation of the distributions to x F = 0 yields a total D D production cross section of 22.6 ± 2.1(±3.6)ωb/nucleon on the assumption of a linear A dependence and 8% average semileptonic branching ratio of charm states.

1 data table

Table 1

No description provided.

THE RATIO OF THE X DISTRIBUTIONS FOR ANTI-NEUTRINOS INTERACTIONS IN NEON AND DEUTERIUM

Asratian, A.E. ; Efremenko, V.I. ; Fedotov, A.V. ; et al.

ITEP-110-1983, 1983.

Inspire Record 192049 DOI 10.17182/hepdata.40367

None

2 data tables

Table 1

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Table 2

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COMPTON EFFECT ON pi- MESON

Antipov, Yu.M. ; Batarin, V.A. ; Bessubov, V.A. ; et al.

Z.Phys.C 24 (1984) 39, 1984.

Inspire Record 193860 DOI 10.17182/hepdata.41183

The reaction π−A→Aπ− γ at 40 GeV/c was studied on “Sigma” spectrometer on six different nuclear targets in the region of four-momentum transfer |t|<0.05 (GeV/c)2. A phenomenon of elastic scattering of pions on the nuclear Coulomb field photons was observed, its total and differential cross sections were measured. The cross section of Compton effect on π−-meson was measured.

6 data tables

Table 1

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Nucleon Structure Functions from High-Energy Neutrino Interactions with Iron and QCD Results

MacFarlane, D. ; Purohit, M.V. ; Messner, R.L. ; et al.

Z.Phys.C 26 (1984) 1-12, 1984.

Inspire Record 195928 DOI 10.17182/hepdata.16212

Nucleon structure functions obtained from neutrino and anti-neutrino scattering on iron nuclei at high energies (Ev=30 to 250 GeV) are presented. These results are compared with the results of other lepton-nucleon scattering experiments. The structure functions are used to test the validity of the Gross-Llewellyn-smith sum rule, which measures the number of valence quarks in the nucleons, and to obtain leading and second order QCD fits.

19 data tables

Table 1

Measured charged current total cross section.

Table 2

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Table 3

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