ELASTIC-SCATTERING AND SINGLE DIFFRACTIVE DISSOCIATION IN P((P)OVER-BAR)-P COLLISIONS UP TO 1000 TEV FROM A THEORY WITH FLUCTUATIONS IN THE EIKONAL

被引:59
作者
BARSHAY, S
HEILIGER, P
REIN, D
机构
[1] III. Physikalisches Institut, Technische Hochschule Aachen, Aachen
来源
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1992年 / 56卷 / 01期
关键词
D O I
10.1007/BF01589708
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Complete results are presented from a new description of high-energy diffractive scattering, which incorporates fluctuations in the eikonal into the general geometric picture. In the TeV range, these results differ from those of representations without fluctuations. In particular, the total and elastic cross section exhibit a domain of local growth well above asymptotic behavior, from about 20 TeV up to 800 TeV. As a consequence, the real to imaginary part ratio for the forward scattering amplitude slowly, but steadily increases to about 19% at 210 TeV. Of similar size at lower energies, the cross section for single diffractive dissociation does not follow the growth of the elastic cross section. It reaches a broad maximum, and then falls away as the collision system continues to blacken. There is a quantitative correlation to sigma(el)(s)/sigma(tot)(s). The differential cross section for diffractive dissociation reflects, in part, the effective small size of the constituent quark. We offer a speculation upon a new kind of diffractive dissociation process at super-high energies, involving pionic coherence around constituent quarks.
引用
收藏
页码:77 / 85
页数:9
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