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Does the Σ(1580)32− resonance exist?

Authors :
N. G. Kozlenko
S. McDonald
I. I. Strakovsky
A. Starostin
A. F. Ramirez
I. Supek
Z. Papandreou
S. P. Kruglov
W. J. Briscoe
M. Clajus
C. E. Allgower
H. M. Spinka
D. Grosnick
D. Isenhower
A.A. Kulbardis
D. M. Manley
J. Olmsted
G. J. Lolos
J. R. Comfort
I. V. Lopatin
A. Shafi
W. B. Tippens
N. Phaisangittisakul
S. N. Prakhov
K. Craig
B. M. K. Nefkens
A. Marušić
V.S. Bekrenev
D. D. Koetke
H. M. Staudenmaier
J. W. Price
N. Knecht
R. Manweiler
D. Peaslee
M. E. Sadler
T. D. S. Stanislaus
Source :
Physics Letters B. 588:29-34
Publication Year :
2004
Publisher :
Elsevier BV, 2004.

Abstract

Precise new data for the reaction K−p→π0Λ are presented in the c.m. energy range 1565 to 1600 MeV. Our analysis of these data sheds new light on claims for the Σ(1580) 3 2 − resonance, which (if it exists with the specified quantum numbers) must be an exotic baryon because of its very low mass. Our results show no evidence for this state.

Details

ISSN :
03702693
Volume :
588
Database :
OpenAIRE
Journal :
Physics Letters B
Accession number :
edsair.doi.dedup.....f8487533c219b46680d5102988be9e22