Title of article
A study of the centrally produced π+π−π+π− channel in pp interactions at 450 GeV/c
Author/Authors
WA102 Collaboration، نويسنده , , D. Barberis، نويسنده , , W. Beusch، نويسنده , , F.G. Binon، نويسنده , , A.M. Blick، نويسنده , , F.E. Close ، نويسنده , , K.M. Danielsen، نويسنده , , A.V. Dolgopolov، نويسنده , , S.V. Donskov، نويسنده , , B.C. Earl، نويسنده , , D. Evans، نويسنده , , B.R. French، نويسنده , , Y. Mastuo and T. Hino، نويسنده , , S. Inaba، نويسنده , , A.V. Inyakin، نويسنده , , T. Ishida، نويسنده , , A. Jacholkowski، نويسنده , , E. W. Lemmon and R. T. Jacobsen ، نويسنده , , G.V. Khaustov، نويسنده , , T. Kinashi، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
8
From page
217
To page
224
Abstract
The reaction pp → pf(π+ π− π+ π−)ps has been studied at 450 GeV/c in an experiment designed to search for gl states. A spin analysis has been performed and the dPT filter applied. In addition to the well know f1(1285) there is evidence for two JPC = 2−+ states called the η2(1620) and η2(1875) and a broad scalar called the f0(2000). The production of these states as a function of the dPT kinematical filter shows the behaviour expected for qq states. In contrast, there is evidence for two states at 1.45 GeV and at 1.9 GeV which do not show the behaviour observed for qq states.
Journal title
PHYSICS LETTERS B
Serial Year
1997
Journal title
PHYSICS LETTERS B
Record number
908973
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