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العنوان
THREE-BODY FORCE EFFECT ON p-3Hc SCA TTERJNG\
المؤلف
Sherif Ahmed Moussa
هيئة الاعداد
مشرف / احمد جلال السقا
مشرف / محمد احمد محمد
مناقش / محمد عمر شاكر
مناقش / فاروق امين ايوب
تاريخ النشر
1996.
عدد الصفحات
126p.;
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الفيزياء وعلم الفلك
تاريخ الإجازة
1/1/1996
مكان الإجازة
جامعة عين شمس - كلية العلوم - قسم الرياضيات
الفهرس
Only 14 pages are availabe for public view

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Abstract

This thesis is concerned with the study of three-body effect on the 3He charge form factor, elastic
and inelastic differential cross sections of p-3He scattering at intermediate and high
energies.
The effect of the three-body force is introduced through a ground state wave function of 3He
nucleus, which contains a short-range correlation factor. Therefore, the short-range correlation
effect on the calculated quantity is, also, discussed. The thesis consists of four chapters as
follows:
Chapter I. A general definition of the three-body force and its general properties with a
presentation of the three-body force effect on the calculations of 3He charge form factor,
p-3He elastic and inelastic scattering and reactions in the previous works are
presented. The fundamental basis of high energy collision theory of Glauber, which is used in
calculations, is also presented here.
Chapter II. The effects of three-body and short-range correlation on the 3He charge form factor is
studied. The calculations performed up to momentum transfer q2 =40 fm-2
The results show that, the short-range correlation leads to the appearance of a series of minima
and maxima and the three-body force effect appears only after the second maximum and, in general,
is small. We obtained a large disagreement between our
results and the experimental data Comparing with the previous works, we can say that, the question
of the three-body force effect on the charge form factor is still opl!n and need a more study.
Chapter m. The sensitivity of the p-3He elastic scattering differential cross section and p-” He
total cross section cr 1 with respect to the three-body force is investigated. The results show
that, the three-body force effect is lear after the second maximum of the differential cross
section. 1\.lso, the sensitivity with respect to the three-body force parameter decreases with
increasing the degree of multi-scattering tenn. T1e sensitivity of cr 1 with respect to the
three-body force can’t be observed.
Chapter IV. The three-body force and the short-range correlation effects on the p-3He inelastic
scattering associated with dissociation processes are studied. In our calculations for the
differential cross sections dcr.fdq 2 and dcrdis/dq 2 the small effect
of the short-range correlation is )bserved and we have not any evidence on the three-body force
effect.
In conclusion, the study of tirree-body force effect on the charge form factor, p-3He
differer.tial cross sections of elastic and inelastic scattering and total cross section, including
it through the ground state wave function of 3He nucleus, does not give a clear evidence on the
three-body for e role. Also, the short-range correlation affects only on the charge form factor,
p-3He elastic scattering differential cross sectio:1 and p-3He total cross section, but, for the
p-3He inelastic scatter:ng can be neglected.