CHIRAL PERTURBATION-THEORY AND RADIATIVE V0-]P0P0-GAMMA DECAYS

被引:76
作者
BRAMON, A [1 ]
GRAU, A [1 ]
PANCHERI, G [1 ]
机构
[1] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY
关键词
D O I
10.1016/0370-2693(92)91368-J
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
An attempt to extend chiral perturbation theory to radiative vector meson decays into two neutral pseudoscalars, V0 --> P0P0-gamma, is presented. The effects of (chiral) loops are found to be important. Unambiguous predictions are given for phi-->pi-0-pi-0-gamma, pi-0-eta-gamma, rho --> pi-0-pi-0-gamma and other processes to be measured in proposed low-energy e+e- machines.
引用
收藏
页码:97 / 102
页数:6
相关论文
共 21 条
[11]   V0-]P0P0-GAMMA DECAY-RATES [J].
FAJFER, S ;
OAKES, RJ .
PHYSICAL REVIEW D, 1990, 42 (07) :2392-2395
[12]   CHIRAL PERTURBATION-THEORY - EXPANSIONS IN THE MASS OF THE STRANGE QUARK [J].
GASSER, J ;
LEUTWYLER, H .
NUCLEAR PHYSICS B, 1985, 250 (03) :465-516
[13]   CHIRAL PERTURBATION-THEORY TO ONE LOOP [J].
GASSER, J ;
LEUTWYLER, H .
ANNALS OF PHYSICS, 1984, 158 (01) :142-210
[14]   KL-]PI-0-GAMMA-GAMMA AND RELATED DECAYS [J].
HAMBYE, T .
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1992, 7 (01) :135-152
[15]  
HERNANDEZ JJ, 1990, PHYS LETT B, V239, P1
[16]   ON THE PHI-]K0KBAR0GAMMA-DECAY [J].
LUCIO, JL ;
PESTIEAU, J .
PHYSICAL REVIEW D, 1990, 42 (09) :3253-3254
[17]   LOW-ENERGY HADRON PHYSICS FROM EFFECTIVE CHIRAL LAGRANGIANS WITH VECTOR-MESONS [J].
MEISSNER, UG .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1988, 161 (5-6) :213-362
[18]  
PALLANTE E, ROM2F9204 PREPR
[19]  
PANCHERI G, 1991, P WORKSHOP PHYSICS D
[20]  
PICCIOTTO C, 1992, NUOVO CIMENTO A, V105, P85