A study of the reaction pim p --> omega pim p at 18 GeV/c: The D and S decay amplitudes for b1(1235) --> omega pi

et al (for the E852 collaboration); Mina Nozar

A study of the reaction pim p --> omega pim p at 18 GeV/c: The D and S decay amplitudes for b1(1235) --> omega pi

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arxiv hep-ex/0206026 v3 pith:XG24UC4D submitted 2002-06-11 hep-ex

Mina Nozar , et al (for the E852 collaboration) This is my paper · ORCID

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The reaction pim p --> omega pim p, omega --> pip pim pi0 has been studied at 18 GeV/c. The omega pim mass spectrum is found to be dominated by the b1(1235). Partial Wave Analysis shows that b1 production is dominated by natural parity exchange. The S-wave and D-wave amplitudes for b1(1235) --> omega pi have been determined, and it is found that the amplitude ratio, |D/S| = 0.269 +/- (0.009)stat +/- (0.01)sys and the phase difference, phi(D-S) = 10.54 deg +/- (2.4)stat +/- (3.9)sys.

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Amplitude Analysis of $\omega\pi^0$ Photoproduction at GlueX
nucl-ex 2024-11 conditional novelty 4.0 of 10

Preliminary GlueX analysis of gamma p -> omega pi0 p reports a dominant b1(1235) amplitude and phase motion consistent with interference from an excited 1-- vector resonance.

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