When a negatively charged particle, other than an electron, like muon, pion orbits a nucleus, under a condition in which the principal interaction with the nucleus is electromagnetic, exotic atoms are formed. Exotic atoms formed with the muon are subject to weak interaction, while for all other exotic atoms strong interaction is involved in addition to the electromagnetic interaction with the nucleus. The electromagnetic interaction with the nucleus is verywell known, therefore, even a small deviation from the electromagnetic value e.g. due to strong interaction, could bemeasured performing precision experiments. Studies of exotic (hadronic) atoms have provided important informationon strong interaction physics. One of the most important exotic atoms are Kanonic hydrogen atoms. By entering the negative kaon as a hadron in hydrogen and collision with proton, according to strong interaction between meson and baryon, a quasi bound state is formed with the mass ofcalled . In this thesis to solve the current debate on the position of the quasi-bound tate, namely or we have used the data obtained from absorbtion in the bubble chamber of liquid hydrogen. The invariant-mass spectra in the resonant capture of at 4.2 GeV/c in proton are calculated by a coupled-channel procedure for a quasi-bound state of an arbitary chosen mass (M) and width . We use the transition matrix and optical phenomenological potential to solve our problem . A analysis yielded and . calculation and investigation of the invariant mass spectra of give a helpful approach to find out the structure of this resonant state. Usingfitting method experimental data (CERN 2m hydrogrn bubble chamber) are compared to our theoretical results.