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A study of the reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p at 18 GeV/c: The D and S decay amplitudes for b{sub 1}(1235) {yields} {omega}{pi}
The reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p, {omega} {yields} {pi}{sup +} {pi}{sup -} {pi}{sup 0} has been studied at 18 GeV/c. The {omega}{pi}{sup -} mass spectrum is found to be dominated by the b{sub 1}(1235). Partial Wave Analysis shows that b{sub 1} production is dominated by natur...
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Published in: | Physics letters. B 2002-08, Vol.541 |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | The reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p, {omega} {yields} {pi}{sup +} {pi}{sup -} {pi}{sup 0} has been studied at 18 GeV/c. The {omega}{pi}{sup -} mass spectrum is found to be dominated by the b{sub 1}(1235). Partial Wave Analysis shows that b{sub 1} production is dominated by natural parity exchange. The S-wave and D-wave amplitudes for b{sub 1}(1235) {yields} {omega}{pi} have been determined, and it is found that the amplitude ratio, |D/S| = 0.269 {+-} (0.009){sub stat} {+-} (0.01){sub sys} and the phase difference, {phi}(D-S) = 10.54{sup o} {+-} (2.4{sup o}){sub stat} {+-} (3.9){sub sys}. |
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ISSN: | 0370-2693 1873-2445 |