Comparison of inclusive $K^+$ production in proton-proton and proton-neutron collisions - INSPIRE

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Comparison of inclusive $K^+$ production in proton-proton and proton-neutron collisions

Yu. Valdau
(
- St. Petersburg, INP and
- Julich, Forschungszentrum and
- JCHP, Julich
)
,
V. Koptev
(
- St. Petersburg, INP
)
,
S. Barsov
(
- St. Petersburg, INP
)
,
M. Buescher
(
- Julich, Forschungszentrum and
- JCHP, Julich
)
,
A. Dzyuba
(
- St. Petersburg, INP
)

Sep, 2011

6 pages

Published in:

Phys.Rev.C 84 (2011) 055207

e-Print:

1109.0176 [nucl-ex]

DOI:

10.1103/PhysRevC.84.055207

View in:

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Abstract: (arXiv)

The momentum spectra of K+ produced at small angles in proton-proton and proton-deuteron collisions have been measured at four beam energies, 1.826, 1.920, 2.020, and 2.650 GeV, using the ANKE spectrometer at COSY-Juelich. After making corrections for Fermi motion and shadowing, the data indicate that K+ production near threshold is stronger in pp- than in pn-induced reactions. However, most of this difference could be made up by the unobserved K0 production in the pn case.

Note:

6 pages, 4 figures, Submitted to PRC

14.40.Df
25.40.Ve
13.75.-n
p p: inclusive reaction
p deuteron: inclusive reaction
K+: hadroproduction
K+: momentum spectrum
threshold
nuclear physics: effect
differential cross section: energy dependence: measured

References(40)

Figures(5)

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