RATE AND SPECTRUM OF ETA-]PI-0-GAMMA-GAMMA

被引：7
|
作者：
PICCIOTTO, C
机构：
[1] Laboratoire National Saturne, CEN Saclay, Gif-sur-Yvette Cedex
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1992年 / 105卷 / 01期
关键词：
D O I：
10.1007/BF02730736
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The rate and invariant two-photon mass spectrum are calculated r the decay eta --> pi-0-gamma-gamma. Contributions from internal vector mesons and kaon loop are considered, with the latter having a small but noticeable effect. We find GAMMA(eta --> --> pi-0-gamma-gamma) almost-equal-to (0.3 divided-by 0.4) eV, significantly lower than the latest experimental result.
引用
收藏
页码：27 / 32
页数：6
相关论文
共 50 条
  • [1] OBSERVATION OF THE DECAY ETA-]PI-0-GAMMA-GAMMA
    BINON, F
    BRICMAN, C
    DAVYDOV, VA
    DONSKOV, SV
    DUFOURNAUD, J
    DUTEIL, P
    GOUANERE, M
    INYAKIN, AV
    KACHANOV, VA
    KAKAURIDZE, DB
    KHAUSTOV, GV
    KULIK, AV
    LAGNAUX, JP
    LEDNEV, AA
    MIKHAILOV, YV
    PEIGNEUX, JP
    PROKOSHKIN, YD
    RODNOV, YV
    SADOVSKY, SA
    SINGOVSKY, AV
    STARZEV, AV
    STROOT, JP
    SUGONYAEV, VP
    [J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1982, 71 (04): : 497 - 508
  • [2] THE DECAY ETA-]PI-0-GAMMA-GAMMA IN A MODEL OF MESONS WITH QUARK LOOPS
    VOLKOV, MK
    KREOPALOV, DV
    [J]. SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1983, 37 (05): : 770 - 773
  • [3] RATE AND SPECTRUM OF KL-]PI-0-GAMMA-GAMMA
    SEHGAL, LM
    [J]. PHYSICAL REVIEW D, 1990, 41 (01): : 161 - 166
  • [4] STUDY OF ETA-]PI-0-GAMMA-GAMMA DECAY USING THE QUARK-BOX DIAGRAM
    NG, JN
    PETERS, DJ
    [J]. PHYSICAL REVIEW D, 1993, 47 (11): : 4939 - 4948
  • [5] CONTRIBUTIONS OF THE C-ODD AXIAL-VECTOR RESONANCES TO ETA-]PI-0-GAMMA-GAMMA AND GAMMA-GAMMA-]PI-0-PI-0
    KO, PW
    [J]. PHYSICAL REVIEW D, 1993, 47 (09) : 3933 - 3937
  • [6] SEARCH FOR DECAY MODES ETA-]PI++PI-+PI0+GAMMA AND ETA-]PI++PI-+GAMMA+GAMMA
    PRICE, LR
    CRAWFORD, FS
    [J]. PHYSICAL REVIEW LETTERS, 1967, 18 (26) : 1207 - &
  • [7] RELATIVE DECAY-RATES OF ETA-]PI+PI-PI0, ETA-]PI+PI-GAMMA, ETA-]PI+PI-PI0GAMMA, AND ETA-]PI+PI-
    THALER, JJ
    APPEL, JA
    KOTLEWSKI, A
    LAYTER, JG
    LEE, W
    STEIN, S
    [J]. PHYSICAL REVIEW D, 1973, 7 (09) : 2569 - 2571
  • [8] The role of chiral loops in eta->pi(0)pi(0)gamma gamma
    Bellucci, S
    Isidori, G
    [J]. PHYSICS LETTERS B, 1997, 405 (3-4) : 334 - 340
  • [9] The gamma gamma->pi(0)pi(0) and eta->pi(0)gamma gamma transitions in the extended NJL model
    Bijnens, J
    Fayyazuddin, A
    Prades, J
    [J]. PHYSICS LETTERS B, 1996, 379 (1-4) : 209 - 218
  • [10] SEARCH FOR ETA-]PI++PI-+PI0+GAMMA
    FLATTE, SM
    [J]. PHYSICAL REVIEW LETTERS, 1967, 18 (22) : 976 - &
12345