Partial wave analysis of the π0 π0 system produced in π-p charge exchange collisions -: art. no. 072003

被引:47
作者
Gunter, J [1 ]
Dzierba, AR
Lindenbusch, R
Plinske, KA
Rust, DR
Scott, E
Shepherd, MR
Smith, PT
Sulanke, T
Teige, S
Szczepaniak, AP
Chung, SU
Danyo, K
Hackenburg, RW
Olchanski, C
Weygand, DP
Willutzki, HJ
Denisov, SP
Dorofeev, VA
Kachaev, IA
Lipaev, VV
Popov, AV
Ryabchikov, DI
Bar-Yam, Z
Dowd, JP
Eugenio, P
Hayek, M
Kern, W
King, E
Shenhav, N
Bodyagin, VA
Kodolova, OL
Korotkikh, VL
Kostin, MA
Ostrovidov, AI
Sarycheva, LI
Sinev, NB
Vardanyan, IN
Yershov, AA
Brown, DS
Pedlar, TK
Seth, KK
Wise, J
Zhao, D
Adams, T
Bishop, JM
Cason, NM
Ivanov, EI
LoSecco, JM
Manak, JJ
机构
[1] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[2] Indiana Univ, Ctr Nucl Theory, Bloomington, IN 47405 USA
[3] Brookhaven Natl Lab, Upton, NY 11973 USA
[4] Inst High Energy Phys, Protvino 142284, Russia
[5] Univ Massachusetts, Dept Phys, N Dartmouth, MA 02747 USA
[6] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia
[7] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA
[8] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[9] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA
来源
PHYSICAL REVIEW D | 2001年 / 64卷 / 07期
关键词
D O I
10.1103/PhysRevD.64.072003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A partial wave analysis of the pi (0)pi (0) system produced in the charge exchange reaction pi (-)p --> pi (0)pi (0)n at an incident momentum of 18.3 GeV/c is presented as a function of the pi (0)pi (0) invariant mass m(pi0 pi0) and momentum transfer squared \t \ from the incident pi (-) to the outgoing pi (0)pi (0) system. For small values of \t \, the S-wave intensity shows a broad enhancement at low m(pi0 pi0) with a sharp dip in the vicinity of the f(0)(980). A dip is also observed in the vicinity of the f(0)(1500). There is a rapid variation of the S to D-0 relative phase difference in these mass regions. For large values of \t \, the f(0)(980) appears as a bump. The f(2)(1270), observed in D waves, is produced dominantly by pi exchange at low values of \t \ and a(2) exchange at higher values of \t \.
引用
收藏
页码:art. no. / 072003
页数:15
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