COLOR TRANSPARENCY EFFECTS IN ELECTRON DEUTERON INTERACTIONS AT INTERMEDIATE Q(2)

被引:64
作者
FRANKFURT, LL
GREENBERG, WR
MILLER, GA
SARGSYAN, MM
STRIKMAN, MI
机构
[1] INST NUCL PHYS, ST PETERSBURG, RUSSIA
[2] UNIV PENN, DEPT PHYS, PHILADELPHIA, PA 19104 USA
[3] UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195 USA
[4] YEREVAN PHYS INST, YEREVAN 375036, ARMENIA
[5] PENN STATE UNIV, DEPT PHYS, UNIVERSITY PK, PA 16802 USA
来源
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1995年 / 352卷 / 01期
关键词
D O I
10.1007/BF01292764
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
High momentum transfer electrodisintegration of polarized and unpolarized deuterium targets, d(e, e'p)n is studied. We show that the importance of final state interactions FSI, occuring when a knocked out nucleon interacts with the other nucleon, depends strongly on the momentum ($) over right arrow p(n) of the spectator nucleon. In particular, these FSI occur when the essential contributions to the scattering amplitude arise from internucleon distances similar to 1.5 fm. But the absorption of the high momentum gamma* may produce a point like configuration, which evolves with time. In this case, the final state interactions probe the point like configuration at the early stage of its evolution. If the point like configuration is still small after propagating about 1.5 fm, the FSI are suppressed. The result is that significant color transparency effects, which can either enhance or suppress computed cross sections, are predicted to occur for Q(2) greater than or similar to 4 GeV2. We suggest searching for color transparency phenomenon by examining ratios of experimentally measured quantities. Possible theoretical uncertainties of the calculations, including those due to the deuteron wave function and relativistic effects, are found to be small.
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收藏
页码:97 / 113
页数:17
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