2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81299Recent evidence for the existence of pentaquark $Θ^+$ particle from several experiments at several different laboratories around the world has caused great excitement and raised many unanswered questions. We discuss a new proposal on a high resolution experiment searching for pentaquark states in Hall C at Jefferson Lab using an untagged bremsstrahlung photon beam employing both the hydrogen and the deuterium targets by studying the following processes: $γp \to Θ^{++} K^-$, and $γn \to Θ^+ K^-$. This new experiment will significantly improve our current knowledge of the mass, the width of the $Θ^+$ particle if it is confirmed and provide unambiguous evidence for the existence or non-existence of the $Θ^{++}$ particle from the γp \to Θ^{++} K^-$ process.3 pages, 2 figures, talk presented at the YITP workshop YITP-W-03-21 on ``Multi-quark Hadron: four, five and more?'', Feb. 2004, Kyoto, JapanNuclear ExperimentHigh Energy Physics - Experimenttext