Search for a Narrow Baryonic Resonance Decaying to K 0 s p or K 0 s p ¯ in Deep Inelastic Scattering at HERA
Abstract
A search for a narrow baryonic resonance decaying to
K
0
s
p
or
K
0
s
p
¯
is carried out in deep inelastic ep scattering with the H1 detector at HERA. Such a resonance could be a strange pentaquark \thplns, evidence for which has been reported by several experiments. The
K
0
s
p
and
K
0
s
p
¯
invariant mass distributions presented here do not show any significant peak in the mass range from threshold up to 1.7 GeV. Mass dependent upper limits on $\sigma(ep \to e \thplf X)\times BR(\thplf \to K^0 p)$ are obtained at the 95% confidence level.