Probing the deuteron structure at small N-N distances by cumulative pion production

Details Probing the deuteron structure at small N-N distances by cumulative pion production Probing the deuteron structure at small N-N distances by cumulative pion production

2002-09-30

arxiv.org/abs/hep-ph/0209355v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 postscript figures; to appear in the proceedings of Conference on Quarks and Nuclear Physics (QNP 2002), Julich, Ge

Scientific paper

10.1140/epja/i2002-10224-4

The fragmentation of deuterons into pions emitted forward in the kinematic region forbidden for free nucleon-nucleon collisions is analyzed. It is shown that the inclusion of the non-nucleonic degrees of freedom in a deuteron results in a satisfactory description of the data for the inclusive pion spectrum and improves the description of the data about $T_{20}$. According to the data, $T_{20}$ has very small positive values, less than 0.2, which contradicts the theoretical calculations ignoring these degrees of freedom.

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