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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}

Journal Article · · Physics Letters, (Section) B
OSTI ID:837596
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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}.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
837596
Report Number(s):
JLAB-PHY-02-141; DOE/ER/40150-3197; hep-ex/0206026
Journal Information:
Physics Letters, (Section) B, Journal Name: Physics Letters, (Section) B Vol. 541; ISSN PYLBAJ; ISSN 0370-2693
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
DECAY AMPLITUDES
PARITY
PARTIAL WAVES
PRODUCTION