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arXiv · 1608.06394

$K^0 \Lambda$ and $D^- \Lambda_c^+$ production induced by pion beams off the nucleon

Sang-Ho Kim·Hyun-Chul Kim·Atsushi Hosaka
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Abstract

We present a comparative study of the pion induced production of $K^0 \Lambda$ and $D^- \Lambda_c^+$ off the nucleon. A hybrid framework is utilized by combining an effective Lagrangian method with a Regge approach. We consider the $t$-channel process in a plannar diagram by vector-meson Reggeon exchanges and the $u$-channel one in a non-planar diagram by baryon Reggeon exchanges. The present model reproduces the $K^0 \Lambda$ production data well with a few parameters. Having fixed them, we predict the $D^- \Lambda_c^+$ production, which turns out to be about $10^4-10^6$ times smaller than the strangeness one, depending on the kinematical regions.

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Sang-Ho Kim, Hyun-Chul Kim, Atsushi Hosaka. 2016-08-23. $K^0 \Lambda$ and $D^- \Lambda_c^+$ production induced by pion beams off the nucleon. https://doi.org/10.1103/physrevd.94.094025

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