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Abstrak :
[ABSTRAK
Semakin baik dan banyaknya hasil eksperimen di bidang nuklir, menjadi faktor pendorong bagi fisikawan nuklir untuk melakukan penelitian lebih lanjut mengenai interaksi dan struktur nuklir. Alhasil, banyak reaksi yang bertujuan untuk menjelaskan, membandingkan bahkan memperkirakan hal ini, salah satunya adalah fotoproduksi kaon netral pada deuteron. Telah dipelajari sebuah model sederhana untuk reaksi fotoproduksi kaon netral pada deuteron yaitu model isobar dengan menggunakan pendekatan impuls. Penelitian ini bertujuan untuk mempelajari penampang lintang eksklusif dan inklusif dari fotoproduksi kaon netral pada deuteron dengan beberapa keadaan kinematik, dan dibandingkan dengan eksperimen [6]. Hasil yang didapatkan menunjukkan penampang lintang inklusif lebih besar daripada penampang lintang eksklusif karena pada penampang lintang inklusif hanya mendeteksi kaon saja, dan untuk penampang lintang eksklusif mendeteksi kaon dan hiperon secara simultan, makin banyak partikel yang dideteksi makin kecil penampang lintangnya. Penampang lintang eksklusif dengan momentum proton = 0 lebih besar dibandingkan dengan momentum proton tidak nol, hal ini dikarenakan peluang terjadinya reaksi lebih besar ketika neutron dalam deuteron diam. Untuk penampang lintang eksklusif dengan variasi momentum proton, paling besar penampangnya berada pada arah sumbu Z, yaitu searah dengan masuknya proyektil foton riil saat terjadinya reaksi. Kaon paling banyak mengalami hamburan pada sudut kecil, sementara pada sudut yang besar penampang lintangnya kecil. Amplitudo transisi deuteron berperan penting dalam reaksi eksklusif maupun inklusif yaitu dalam menentukan puncak-puncak kurva penampang lintang tersebut.

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ABSTRACT
The abundance experimental results in the nuclear eld, becomes a driving factor for nuclear physicists to conduct further research on interactions and nuclear structure. As a result, many reactions aims to explain, compare and even estimate it, one of which is the neutral kaon photoproduction on deuteron. It has been studied a simple model for the reaction of the neutral kaon photoproduction on deuteron with isobars model using impulse approximation. This research aims to learn the exclusive and inclusive cross section of neutral kaon photoproduction on deuteron with some kinematic state, and compared with experiments [6]. The results obtained indicate the inclusive cross section larger than the exclusive cross section because for the inclusive cross section only detect kaon, and exclusive cross section detect kaon and hyperon simultaneously, more particles are detected the smaller cross section will be. Exclusive cross section with proton momentum = 0 is larger than when proton momentum is not zero, because of the possibilty for greater reaction is when a neutron in the deuteron is not moving. For the exclusive cross section with variation proton momentum, the largest cross section is in the axis-Z, that have the same direction with the entry of projectile photon real. Kaon experiences the most scattering at small angles, while at large angles have a small cross section. Transition amplitude on deuteron plays an important role in the reaction that exclusive or inclusive in determining the peaks of the cross section of the curve, The abundance experimental results in the nuclear eld, becomes a driving factor for nuclear physicists to conduct further research on interactions and nuclear structure. As a result, many reactions aims to explain, compare and even estimate it, one of which is the neutral kaon photoproduction on deuteron. It has been studied a simple model for the reaction of the neutral kaon photoproduction on deuteron with isobars model using impulse approximation. This research aims to learn the exclusive and inclusive cross section of neutral kaon photoproduction on deuteron with some kinematic state, and compared with experiments [6]. The results obtained indicate the inclusive cross section larger than the exclusive cross section because for the inclusive cross section only detect kaon, and exclusive cross section detect kaon and hyperon simultaneously, more particles are detected the smaller cross section will be. Exclusive cross section with proton momentum = 0 is larger than when proton momentum is not zero, because of the possibilty for greater reaction is when a neutron in the deuteron is not moving. For the exclusive cross section with variation proton momentum, the largest cross section is in the axis-Z, that have the same direction with the entry of projectile photon real. Kaon experiences the most scattering at small angles, while at large angles have a small cross section. Transition amplitude on deuteron plays an important role in the reaction that exclusive or inclusive in determining the peaks of the cross section of the curve]

Abstrak :
During the first and second year of the research activities, the following progress has been achieved: 1. Investigation of the Response Functions. All possible Response Functions in photo- and electroproduction of kaons on the nucleon have been investigated in the framework of an isobaric model. We found that some Response Functions are sensitive to the choice of the strange hadron form factors. Meanwhile, we have also improved the elementary model for kaon photoproduction by using a certain method to maintain gauge invariance of the amplitude. We have published the results in Ref. [1, 2, 3] (see attachments). 2. Some Phenomenological Aspects in Kaon Photoproduction. The elementary operator can be used to study some interesting aspects in kaon photoproduction, i.e. the Gerasimov-Drell-Hearn sum-rule and the missing resonance in kaon photoproduction. We have published the results in Ref. [4, 5] 3. Photoproduction of Kaon off a Deuteron. Using an established and consistent model for kaon photoproduction on the nucleon, we have calculated photoproduction of kaons on the deuteron in the frame-work of the nucleon spectator model. We have compared the result with the previous study by Xiaodong Li et. al. [6] in Ref. [7] 4. Photoproduction of Kaon off a Deuteron with Final State Interactions. The previous work has been extended by including the effects from final state inter-actions (FSI). To achieve this, we used the formalism of three-body wave functions developed by the Okayama-Bochum group. The results have been published in Ref. [8]. 5. Electroproduction of Kaon off a Deuteron with Final State Interactions. As the final work of this project, we have finished the fortran code for calculating kaon electroproduction of a deuteron. This part became a collaborated work with the Okayama-Bochum group.

Abstrak :
[ABSTRAK
Telah dipelajari dan dikembangkan sebuah model sederhana untuk reaksi fotoproduksi kaon pada neutron dari deuteron yaitu model isobar dengan menggunakan pendekatan impuls. Nilai yang dicari adalah nilai penampang lintang diferensial dengan variasi energi foton dimulai dari 1,15 GeV-3,55 GeV. Hasil penelitian ini menunjukkan reaksi + n ! K++􀀀 dapat diektraksi dari reaksi + d ! K++􀀀 + p. Selain itu dapat disimpulkan bahwa hasil penelitian antara data teori dengan data eksperimen berbeda jauh, data teori melampaui jauh diatas nilai data eksperimen. Salah satu faktor yang menyebabkan hasil data teori dengan eksperimen jauh berbeda disebabkan oleh elemen operator dimana nilai elemen operator yang digunakan memiliki nilai maksimum 2 GeV sedangkan data ekperimen hingga mencapai nilai 3 GeV. Hal inilah yang menyebabkan data teori dengan menggunakan model missing resonans harus dikalikan dengan faktor pengali agar t dengan hasil eksperimen.

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ABSTRACT
Has been studied and developed A simple model for reaction of positive kaon on neutron from deuteron in a isobaric model using impulse approximation. The calculation covered dierential cross section. The value is analyzed with energy range start from 1.15-3.55 GeV. The result show that the cross section for + n! K++􀀀 can be extracted from the reaction + d ! K+ + 􀀀 + p. The research can be concluded that the result of theory is over predicted and the one of this factor is operator elementary that the maximum value we used is 2 GeV, whereas the result of experiment until 3 GeV. This is make me the theory data using missing resonance must be times with a times factor to t with the experiment result, Has been studied and developed A simple model for reaction of positive kaon on neutron from deuteron in a isobaric model using impulse approximation. The calculation covered dierential cross section. The value is analyzed with energy range start from 1.15-3.55 GeV. The result show that the cross section for + n! K++􀀀 can be extracted from the reaction + d ! K+ + 􀀀 + p. The research can be concluded that the result of theory is over predicted and the one of this factor is operator elementary that the maximum value we used is 2 GeV, whereas the result of experiment until 3 GeV. This is make me the theory data using missing resonance must be times with a times factor to t with the experiment result]

Abstrak :
Investigation of the Response Functions. All possible Response Functions in photo- and electroproduction of kaons on the nucleon have been investigated in the framework of an isobaric model. We found that some Response Functions are sensitive to the choice of the strange hadron form factors. Meanwhile, we have also improved the elementary model for kaon photoproduction by using a certain method to maintain gauge invariance of the amplitude. We have published the results in Ref. [I, 2, 3] (see attachments). Photoproduction of Kaon off a Deuteron. Using an established and consistent model for kaon photoproduction on the nucleon, we have calculated photoproduction of kaons on the deuteron in the frame-work of the nucleon spectator model. We have compared the result with the previous study by Xiaodong Li et. al. [4].