Searches for the pentaquark states Ξ(1860)0 and Ξ(1860)−− in neutron-carbon interactions via the EXCHARM experiment.

Authors :: Aleev, A. N.
Amaglobeli, N.S.
Balandin, V. P.
Balev, S. Z.
Bulekov, O. V.
Geshkov, I. M.
Goudzovski, E. A.
Emelianov, D. D.
Eremin, S. V.
Zinchenko, A. I.
Ivanchenko, Z. M.
Ivanchenko, I. M.
Kvatadze, R. A.
Kekelidze, V. D.
Kozhenkova, Z. I.
Korenkov, V. V.
Kosarev, I. G.
Kuzmin, N. A.
Loktionov, A. A.
Ljubimov, A. L.
Source :: Physics of Atomic Nuclei; Sep2007, Vol. 70 Issue 9, p1527-1533, 7p, 1 Diagram, 1 Chart, 5 Graphs
Publication Year :: 2007
Abstract: Results of searches for the pentaquark states Ξ(1860)<superscript>0</superscript> and Ξ(1860)<superscript>−−</superscript> in neutron-carbon interactions at an average neutron energy of about 51 GeV via the EXCHARM experiment are presented. No such states are found in the Ξ<superscript>−</superscript> π <superscript>+</superscript> and Ξ<superscript>−</superscript> π <superscript>−</superscript> effective-mass spectra examined in this study. Upper limits on the cross sections for Ξ(1860)<superscript>0</superscript> and Ξ(1860)<superscript>−−</superscript> production are estimated. [ABSTRACT FROM AUTHOR]

Subjects :: QUARKS
QUARK-gluon plasma
COLLISIONS (Nuclear physics)
PARTICLES (Nuclear physics)
NUCLEAR reactions
SPECTRUM analysis
NUCLEAR physics

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