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 · Thu Aug 08 00:00:00 EDT 2002 · Physics Letters, (Section) B

OSTI ID:837596

Nozar, Mina; Adams, Gary; Adams, T; Bar-Yam, Z; Bishop, J M; Bodyagin, V A; Brown, D S; Cason, N M; Chung, S U; Cummings, John; Danyo, K; Demianov, A I; Denisov, S P; Dorofeev, V; Dowd, J P; Eugenio, Paul; Fan, X L; Gribushin, A M; Hackenburg, R W; Hayek, M ; Hu, J; Ivanov, E I; Joffe, David; Kachaev, I; Kern, W; King, E; Kodolova, O L; Korotkikh, V L; Kostin, M A; Kuhn, Joachim; Lipaev, V V; Losecco, John; Lu, M; Manak, Joseph; Napolitano, James; Olchanski, C; Ostrovidov, Alexander; Pedlar, T K; Popov, A V; Ryabchikov, D I; Sarycheva, L I; Seth, K K; Shenhav, N; Shen, Xiaoyan; Shephard, W D; Sinev, N B; Stienike, D L; Suh, J S; Taegar, S A; Tomaradze, A; Vardanyan, I N; Weygand, Dennis; White, D B; Willutzki, H J; Witkowski, M; Yershov, A A

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 (TJNAF), Newport News, VA (United States)
• 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; PYLBAJ; TRN: US0501036
• Journal Information: Physics Letters, (Section) B, Vol. 541; Other Information: Phys.Lett. B541 (2002) 35-44; PBD: 8 Aug 2002; ISSN 0370-2693
• Country of Publication: United States
• Language: English

Related Subjects

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