HEPData Search

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.

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Lambda-Hyperon and K°-Meson Production Cross Sections In CC-lnteractlons at 4.2 GeV/c Momentum per Nucleon

Arakelian, S.G. ;

JINR-P1-83-354, 1983.

Inspire Record 1395686 DOI 10.17182/hepdata.39088

Lambda-hyperon and K°-meson production effective cross sections in Interactions of relativistlc carbon nuclei, measured using a 2-meter propane bubble chamber, appear to be <^c « (24+6) mb; <7°°0- (30 ±10) mb. They are In fair agreement with the predictions of the flrestreak model making use of the hypothesis on chemical equilibrium and associative production of strange particles. It means that strange particle production In CC-lnteractlons at 4.2 GeV/c momentum per nucleon Is well described without Invoking hypothesis about the quark-gluon phase transition.

1 data table

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No description provided.

Date

Collaboration

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Observables

CM Energies (GeV)

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PSI-prime (3700) PARTICLE PRODUCTION IN PI- CU INTERACTIONS AT 50-GEV/C. (IN RUSSIAN)

ANGULAR DEPENDENCE OF LOW-ENERGY PI+- MESON YIELD. (IN RUSSIAN)

$J/\psi$ and $\psi^\prime$ Production in $\pi^-$ Cu Interaction at 50-{GeV}/$c$

A-dependence of Inclusive $\pi^\pm$ Meson Photoproduction

A-DEPENDENCE OF CUMULATIVE PHOTOPROTONS

A-DEPENDENCE OF THE YIELD OF DEUTERON INCLUSIVE PHOTOPRODUCTION ON NUCLEI

Angular Dependence of the Yield of Cumulative Protons Produced in $\gamma$ a Interactions at $e (\gamma$) Max = 4.5-{GeV}

Study of the A-dependence of the Inclusive Spectra of the $\rho^0$ and $\omega$ Mesons Produced by the $\pi^-$ Mesons at 43-{GeV}/$c$

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

Lambda-Hyperon and K°-Meson Production Cross Sections In CC-lnteractlons at 4.2 GeV/c Momentum per Nucleon