THE REACTION POMERON-POMERON -]PI+PI- AND AN UNUSUAL PRODUCTION MECHANISM FOR THE F2 (1270)

被引：50

作者：

BREAKSTONE, A ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1990年 / 48卷 / 04期

关键词：

D O I：

10.1007/BF01614690

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：

Data are presented on Pomeron-Pomeron interactions which produce a central pi+ pi- system in proton-proton collisions at square-root s = 62 GeV at the CERN Intersecting Storage Rings. This process may favor the production of gluonic bound states. A partial-wave analysis of the pi+ pi- system shows evidence for the production of the states f-degrees(975), f-degrees(1400), and f2(1270). The fitted mass for the f2(1270) is about 50 MeV below the world average. In addition, the production mechanism for the f2(1270) is uniquely different from that for the other final states in that there is a correlation between the outgoing protons. This is consistent with a picture of two-gluon exchange with the f2(1270) produced by gluon fusion, and could indicate that the f2(1270) has a glueball component.

引用

页码：569 / 575

页数：7

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