A study of the reaction π-p→ωπ-p at 18 GeV/c:: the D and S decay amplitudes for b1(1235)→ωπ

被引：18

作者：

Nozar, M ^{[1
]}

Adams, GS

Adams, T

Bar-Yam, Z

Bishop, JM

Bodyagin, VA

Brown, DS

Cason, NM

Chung, SU

Cummings, JP

Danyo, K

Demianov, AI

Denisov, SP

Dorofeev, V

Dowd, JP

Eugenio, P

Fan, XL

Gribushin, AM

Hackenburg, RW

Hayek, M

Hu, J

Ivanov, EI

Joffe, D

Kachaev, I

Kern, W

King, E

Kodolova, OL

Korotkikh, VL

Kostin, MA

Kuhn, J

Lipaev, VV

LoSecco, JM

Lu, M

Manak, JJ

Napolitano, J

Olchanski, C

Ostrovidov, AI

Pedlar, TK

Popov, AV

Ryabchikov, DI

Sarycheva, LI

Seth, KK

Shenhav, N

Shen, X

Shephard, WD

Sinev, NB

Stienike, DL

Suh, JS

Taegar, SA

Tomaradze, A

机构：

[1] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[2] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA

[3] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[4] Univ Massachusetts, Dept Phys, N Dartmouth, MA 02747 USA

[5] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia

[6] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA

[7] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[8] Protvino High Energy Phys Inst, Protvino 142284, Russia

来源：

PHYSICS LETTERS B | 2002年 / 541卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(02)02194-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The reaction pi(-)p --> omegapi(-)p, omega --> pi(+)pi(-)pi(0) has been studied at 18 GeV/c. The omegapi(-) mass spectrum is found to be dominated by the b(1) (1235). Partial Wave Analysis (PWA) shows that b(1) production is dominated by natural parity exchange. The S-wave and D-wave amplitudes for b(1)(1235) --> omegapi 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) = 10.54degrees +/- (2.4degrees)(stat) +/- (3.9degrees)(sys). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：35 / 44

页数：10

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