The ( p , 2 p ) Reaction Based on the Relativistic Impulse Approximation Takashi
نویسنده
چکیده
Cross sections and analyzing powers are calculated for the 40Ca( p, 2P)K reaction at proton incident energy of 300 MeV. The t-matrix elements are given by the effective nucleon-nucleon amplitudes of Love-Franey. The optical potentials for distorted waves are calculated by relativistic impulse approximation (RIA). Our calculations are somewhat in poor agreement with experimental data and finally the cause of this discrepancy is discussed.
منابع مشابه
Is the relativistic distorted-wave impulse approximation useful to nuclear reaction?
We have reconsidered the nonrelativistic distorted-wave t-matrix approximation (NR-DWTA) for proton knockout (p; 2p) reaction using modern high-quality phenomenological optical potentials and NN t-matrix. We have calculated 40Ca(p; 2p) reactions at TLAB = 200MeV and compared the results with the relativistic distorted-wave impulse approximation (RDWIA) calculations. It is found that the NR-DWTA...
متن کاملar X iv : h ep - p h / 95 05 37 3 v 1 2 4 M ay 1 99 5 FORMS OF RELATIVISTIC DYNAMICS , CURRENT OPERATORS AND DEEP INELASTIC LEPTON - NUCLEON SCATTERING
The three well-known forms of relativistic dynamics are unitarily equivalent and the problem of constructing the current operators can be solved in any form. However the notion of the impulse approximation is reasonable only in the point form. In particular, the parton model which is the consequence of the impulse approximation in the front form is incompatible with Lorentz invari-ance, P invar...
متن کاملar X iv : h ep - p h / 05 05 00 8 v 1 30 A pr 2 00 5 Test of Fermi gas model and plane - wave impulse approximation against electron - nucleus scattering data
A widely used relativistic Fermi gas model and plane-wave impulse approximation approach are tested against electron-nucleus scattering data. Inclusive quasi-elastic cross section are calculated and compared with high-precision data for C, O, and Ca. A dependence of agreement between calculated cross section and data on a momentum transfer is shown. Results for the 12C(νμ, μ ) reaction are pres...
متن کاملRelativistically generated asymmetry in the missing-momentum distribution from the (e,e'p) reaction.
We calculate the asymmetry in the missing-momentum distribution from the (e, e ′ p) reaction in a relativistic formalism. Longitudinal and transverse response functions are evaluated in parallel kinematics as a function of the three-momentum transfer to the nucleus. Analytic expressions for the responses are obtained in a relativistic plane-wave impulse approximation. These expressions reveal a...
متن کاملPrecise extraction of the induced polarization in the 4He(e,e'p)3H reaction.
We measured with unprecedented precision the induced polarization P(y) in (4)He(e,e'p)(3)H at Q(2)=0.8 and 1.3 (GeV/c)(2). The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are overestimated by a calculation with strong charge-exchange effec...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002