Resonances in (p)over-bar-p→f2(1270) π

被引:27
|
作者
Anisovich, AV [1 ]
Baker, CA
Batty, CJ
Bugg, DV
Hodd, C
Kisiel, J
Nikonov, VA
Sarantsev, AV
Sarantsev, VV
Scott, I
Zou, BS
机构
[1] PNPI, St Petersburg 188350, Russia
[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[3] Univ London Queen Mary & Westfield Coll, London E1 4NS, England
[4] Silesian Univ, PL-40006 Katowice, Poland
关键词
mesons; resonances; annihilation;
D O I
10.1016/S0370-2693(99)00247-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present data on <(p)over bar p> --> 3 pi(0) at nine ii momenta from 600 to 1940 MeV/c. This process is dominated by the f(2)(1270)pi(0) channel, where we observe I = 1 resonances with the following masses and widths: 4(++)(2260+/-15), Gamma = 180 +/- 20 MeV, 4(++)(2005 +/- 25), Gamma = 360 +/- 80 MeV, 3 (++)(2310 +/- 40), Gamma = 180(-60)(+120) MeV, 3(++)(2070 +/- 20), Gamma = 170 +/- 40 MeV, 2(++)(2280 +/- 30), Gamma = 280 +/- 50 MeV, 2(++)(2100(-30)(+10)) , Gamma = 360(-100)(+40): MeV, 1(++)(2100 +/- 20), Gamma = 300(-60)(+30) MeV, (2340 +/- 30), Gamma = 230 +/- 70 MeV. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:187 / 193
页数:7
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