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The experimental results are presented for ratios of ν-meson inclusive differential cross sections in 10.5 GeV/ c π + p, π + D and π + A collisions, R D/p =(d σ /d x F )( π + D → η X)/ (d σ /d x F ) π + p→ η X), R A =(d σ /d x F )( π + D→ η X) in the beam fragmentation region. The results are based on the statistics of ≈ 5 × 10 4 detected η → 2 γ decays. It is shown that the power α in the parametrisation R A ≈ A α ( xf ) does not change significantly with x F and its mean value is 0.50±0.02. The lower limit is obtained for the effective coefficient with string tension in the colour string model, κ ⩾ 3 GeV/fm. The observed growth of R A with x F can be explained by an assumption of a neutron halo with the factor H ≈ 4 in the nuclei.

5 data tables

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High $p_T$ Deuteron and Anti-deuteron Production in $p p$ and $p$ a Collisions at 70-{GeV}

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

Sov.J.Nucl.Phys. 45 (1987) 845, 1987.

Inspire Record 230030 DOI 10.17182/hepdata.40804

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8 data tables

Table 1

Axis error includes +- 0.0/0.0 contribution (?////DUE TO ABSORPTION CORRECTIONS//THE CORRECTION TO THE RATIO DEUT/P DUE TO DIFFERENCE OF PARTICLE ABSORPTION IN CHERENKOV COUNTERS WERE DETERMINED EXPERIMENTALLY (IN THE RANGE 6-45 PCT). THERE WAS THE CORRECTION OF ABOUT 19 PCT FOR ABSORPTION IN THE OTHER PARTS OF THE SPECTROMETER).

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TWO PARTICLE ENERGY-ENERGY CORRELATIONS IN PROTON - NUCLEI INTERACTIONS PROVIDED WITH THE CUMULATIVE PROTONS

Baturin, V.N. ; Vikhrov, V.V. ; Komarov, E.N. ; et al.

LENINGRAD-86-1167, 1986.

Inspire Record 230382 DOI 10.17182/hepdata.37992

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25 data tables

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CM Energies (GeV)

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Quasielastic Charge Exchange of Negative Pions on Carbon Into $\pi^0$, $\eta$, $\eta^\prime$ (958), $\omega(783)$ and F2 (1270) Mesons at 39.1-{GeV}/$c$

Study of a ($D$, $P$) X Reactions at 9-{GeV}/c at Proton Large Transverse Momenta. (In Russian)

INVESTIGATION OF COMPTON EFFECT ON pi MESON AND CHARGED PION POLARIZABILITY

DIFFRACTION PROCESSES IN SIX BODY EXCLUSIVE K+ P REACTIONS AT 32-GEV/C. (IN RUSSIAN)

OBSERVATION OF THE rho0 AND pi- MESONS RESONANT STATE IN THE A(3) REGION

POLARIZATION ASYMMETRY OSCILLATIONS IN REACTION pi- p ---> p0 n AT t <= 3-GeV/c**2

A SEARCH FOR ANOMALOUSLY INTERACTING STABLE PARTICLES IN THE MASS RANGE FROM 1.0-GeV/c2 TO 1.8-GeV/c2

A-dependence of $\eta$ Meson Inclusive Production at 10.5-{GeV}/$c$

High $p_T$ Deuteron and Anti-deuteron Production in $p p$ and $p$ a Collisions at 70-{GeV}

TWO PARTICLE ENERGY-ENERGY CORRELATIONS IN PROTON - NUCLEI INTERACTIONS PROVIDED WITH THE CUMULATIVE PROTONS