Soft and hard Interactions in p(p)over-bar collisions at √s=1800 and 630 GeV

被引：0

作者：

Rimondi, F ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[2] Univ Bologna, Ist Nazl Fis Nucl, I-40126 Bologna, Italy

来源：

PHYSICS OF ATOMIC NUCLEI | 2004年 / 67卷 / 01期

关键词：

D O I：

10.1134/1.1644016

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：

We present a study of p (p) over bar collisions at roots = 1800 and 630 GeV collected using a minimum bias trigger by the CDF experiment in which the data set is divided into two classes corresponding to "soft" and "hard" interactions. For each subsample, the analysis includes measurements of the multiplicity, transverse momentum (p(T)) spectrum, and the average p(T) and event-by-event p(T) dispersion as a function of Multiplicity. A comparison of results shows distinct differences in the behavior of the two samples as a function of the center-of-mass (CM) energy. We find evidence that the properties of the soft sample are invariant as a function of CM energy. (C) 2004 MAIK "Nauka/Interperiodica".

引用

页码：130 / 139

页数：10

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