HEPData Search

Invariant cross sections for hadron production (π±,K±,p and$\bar p$) by protons off C, Al, Cu, Sn and Pb nuclei have been measured at 70 GeV for theP∧ range from 1 up to 4.65 GeV/c. TheA-dependence of the invariant cross section is not described by the exponentialAα(P∧), which points to the presence of secondary hadron absorption in nuclei.

30 data tables

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PRODUCTION OF CHARGED HADRONS WITH LARGE TRANSVERSE MOMENTUM IN PROTON - DEUTERON COLLISIONS AT 70-GeV ENERGY

Abramov, V.V. ; Baldin, B.Yu. ; Buzulutskov, A.F. ; et al.

JETP Lett. 39 (1984) 111, 1984.

Inspire Record 196503 DOI 10.17182/hepdata.70442

None

1 data table

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Production of Charged Hadron Pairs With Large Symmetric Transverse Momenta in $p p$ Collisions at 70-{GeV}

Abramov, V.V. ; Baldin, B.Yu. ; Buzulutskov, A.F. ; et al.

Nucl.Phys.B 245 (1984) 1-16, 1984.

Inspire Record 197233 DOI 10.17182/hepdata.41020

We measured the cross sections of hadron pair production (π, K, p) with symmetric momenta produced back-to-back in the c.m.s. in pp collisions in the range 0.45 ⩽ P T ⩽ 1.99 GeV/ c . Particle correlations showing dependence on quantum numbers and transverse momentum are presented. The data are discussed in the framework of parton models.

9 data tables

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Inclusive $K^$+ (890), $K^$+ (1430) and $\bar{K}^*$ (890) Production in $K^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Borovikov, A.A. ; et al.

Z.Phys.C 25 (1984) 103, 1984.

Inspire Record 195755 DOI 10.17182/hepdata.47703

We present final results on inclusive production ofK*+(890),K*+(1430) andK*−(890) in$\bar K^ +p$ interactions at 32 GeV/c, based on a statistics of ∼27 events/μb. Total cross sections,pT-andx-dependence of inclusive distributions are compared with experiments at other energies and with the Lund fragmentation model. Spin density matrix elements of theK*+(890) are also discussed. The results suggest that “recombination” of both initial state valence quarks$\bar s$ andu of theK+ intoK*+(890), responsible in the Lund model for ∼45% of theK*+(890) cross section, is strongly suppressed.

4 data tables

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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

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