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

Preprint

18 June 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0206026

Abstract

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.

Keywords

DECAY AMPLITUDES
PHASE DIFFERENCE
REACTION PIM
OMEGA PIM
GEV/C
STAT
SYS

All Related Versions

Version 1, 2002-06-11, ArXiv
Version 2, 2002-06-12, ArXiv
Version 3, 2002-06-18, ArXiv
Published version: Physics Letters B, 541 (1-2), 35.

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