Hunting for a new capital sigma (1/2-) resonance around 1380 MeV

Quenched and unquenched quark models give very distinctive predictions for the lowest capital sigma * with spin-parity J(P) = 1/2-. We report evidence for possible existence of a new capital sigma * resonance with J(P) = 1/2- around 1380 MeV by reexamining data of various relevant reactions.

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Bibliographic Details
Published in:Hardon 2009 2009-12, Vol.1257, p.543-547
Main Authors: Zou, B S, Wu, J J, Dulat, S, Gao, Puze
Format: Article
Language:English
Subjects:
Hunting
Quark models
Quenching (cooling)
Online Access:Get full text
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Description
Summary:Quenched and unquenched quark models give very distinctive predictions for the lowest capital sigma * with spin-parity J(P) = 1/2-. We report evidence for possible existence of a new capital sigma * resonance with J(P) = 1/2- around 1380 MeV by reexamining data of various relevant reactions.
ISSN:0094-243X