Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1993-01-12
Nucl.Phys.A560:365-388,1993
Physics
Nuclear Physics
Nuclear Theory
19 pages of text and tables. 16 pages of figures. DOE/ER/40427-38-N92. Text and tables follow in TeX, figures may be obtained
Scientific paper
10.1016/0375-9474(93)90102-4
A quark model which includes both scalar and vector contributions to the reaction mechanism is used in a DWBA calculation of total and differential cross-sections, polarizations, and spin correlation coefficients for the reaction $\bar p p \rightarrow \bar \Lambda \Lambda$ at laboratory momenta from threshold to 1.92 GeV/c. The free parameters of the calculation include the scalar and vector strengths, a quark cluster size parameter, and six parameters in the unknown $\bar \Lambda \Lambda$ interaction. Excellent agreement with experiment is found for a constructive interference of scalar and vector terms, and for a $\bar \Lambda \Lambda$ potential which differs from that suggested by several authors on the basis of SU(3) arguments. The fit to the data is better than that obtained by other quark models, which use only scalar or vector annihilation terms. The agreement with experiment is as good as that found in meson-exchange models, which use more parameters than the present calculation.
Alberg M. A.
Henley Ernest M.
Kunz P. D.
Wilets L.
No associations
LandOfFree
A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-414600