Evidence for JPC=1-+ exotic meson production in the ηπ- system

被引：0
|
作者：
Dowd, JP [1 ]
机构：
[1] Univ Massachusetts, N Dartmouth, MA 02747 USA
来源：
JINGSHIN THEORETICAL PHYSICS SYMPOSIUM IN HONOR OF PROFESSOR TA-YOU WU | 1998年
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The eta pi(-) system has been studied in the reaction pi(-)p --> eta pi(-)p at 18 GeV/c. A large asymmetry in the angular distribution is observed indicating interference between L-even and L-odd partial waves. The a(2)(1320) is observed in the J(PC) = 2(++) wave, as is a broad enhancement between 1.2 and 1.6 GeV/c(2) in the 1(-+) wave. The observed phase difference between these waves shows that there is phase motion in addition to that due to a(2)(1320) decay. The data can be fitted by interference between the a(2)(1320) and an exotic 1(-+) resonance with M = (1370 +/-16(-30)(+50)) MeV/c(2) and Gamma = (385 +/-40(-105)(+65)) MeV/c(2).
引用
收藏
页码：289 / 300
页数：12
相关论文
共 50 条
  • [41] 1-+ exotic on the lattice with FLIC fermions
    Hedditch, J. N.
    Lasscock, B. G.
    Leinweber, D. B.
    Williams, A. G.
    FEW-BODY PROBLEMS IN PHYSICS, 2005, 2007, : 163 - 166
  • [42] Prediction of an exotic state around 4240 MeV with JPC=1-+ as the C-parity partner of Y(4260) in a molecular picture
    Dong, Xiang-Kun
    Lin, Yong-Hui
    Zou, Bing-Song
    PHYSICAL REVIEW D, 2020, 101 (07)
  • [43] Search for exotic state 1-+ π1(1400) at BESⅢ
    张振霞
    刘宏邦
    吴宁
    俞国威
    沈肖雁
    郑汉青
    中国物理C, 2008, (11) : 857 - 861
  • [44] Search for exotic state 1-+ π1(1400) at BESIII
    Zhang Zhen-Xia
    Liu Hong-Bang
    Wu Ning
    Yu Guo-Wei
    Shen Xiao-Yan
    Zheng Han-Qing
    CHINESE PHYSICS C, 2008, 32 (11) : 857 - 861
  • [45] Evidence for exotic meson production in π-p interactions at 18 GeV/c
    Acta Physica Polonica, Series B., 2000, 31 (10-11): : 2615 - 2623
  • [46] Evidence for exotic meson production in π-p interactions at 18 GeV/c
    Willutzki, HJ
    ACTA PHYSICA POLONICA B, 2000, 31 (10-11): : 2615 - 2623
  • [47] Evidence for exotic meson production in π-p interactions at 18 GeV/c
    HADRON SPECTROSCOPY, 1998, (432): : 263 - 272
  • [48] 双π系统与JPC=1-+的奇特混杂态（英文）
    李德民
    马冰
    郁宏
    原子与分子物理学报, 2002, (04) : 451 - 454
  • [49] AN EXOTIC SCALAR MESON WITH JPC=0+/- FROM QCD SUM-RULES
    BRAUN, VM
    KOLESNICHENKO, AV
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1986, 44 (03): : 489 - 499
  • [50] EXOTIC SCALAR JPC = 0+/- MESON FROM QCD SUM-RULES
    BRAUN, VM
    KOLESNICHENKO, AV
    PHYSICS LETTERS B, 1986, 175 (04) : 485 - 491
12345