Title of article
Observation of pseudoscalar and axial vector resonances in π−p→K+K−π0n at 18 GeV
Author/Authors
BNL-E852 Collaboration، نويسنده , , G.S. Adams، نويسنده , , T. Adams، نويسنده , , Z. Bar-Yam، نويسنده , , JM Bishop، نويسنده , , V.A. Bodyagin، نويسنده , , D.S. Brown، نويسنده , , N.M. Cason، نويسنده , , Young-Su Chung، نويسنده , , J.P. Cummings، نويسنده , , K. Danyo، نويسنده , , A.I. Demianov، نويسنده , , D. S. Denisov، نويسنده , , V. Dorofeev، نويسنده , , J.P. Dowd، نويسنده , , P. Eugenio، نويسنده , , X.L. Fan، نويسنده , , A.M. Gribushin، نويسنده , , R.W. Hackenburg، نويسنده , , M. Hayek، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
9
From page
264
To page
272
Abstract
The number of pseudoscalar mesons in the mass range from 1400 to 1500 MeV/c2 has been a subject of considerable interest for many years, with several experiments having presented evidence for two closely spaced states. A new measurement of the reaction π−p→K+K−π0n has been made at a beam energy of 18 GeV. A partial wave analysis of the K+K−π0 system shows evidence for three pseudoscalar resonances, η(1295), η(1416), and η(1485), as well as two axial vectors, f1(1285), and f1(1420). Their observed masses, widths and decay properties are reported. No signal was observed for C(1480), an IGJPC=1+1−− state previously reported in φπ0 decay.
Journal title
PHYSICS LETTERS B
Serial Year
2001
Journal title
PHYSICS LETTERS B
Record number
914684
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