INADEQUACY OF THE NARROW RESONANCE APPROXIMATION IN PHI-]GAMMA-A(0) AND PHI-]GAMMA-F(0) DECAYS

被引：18

作者：

ACHASOV, NN

GUBIN, VV

机构：

[1] Laboratory of Theoretical Physics, S.L. Sobolev Institute for Mathematics

来源：

PHYSICS LETTERS B | 1995年 / 363卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)01197-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the approximation of the narrow widths of the f(0) and a(0) resonances, that is used in both theoretical and experimental investigations of the radiative decays phi --> gamma a(0) and phi --> gamma f(0), is not valid. It is explained how to correctly take into account corrections for finite widths.

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页码：106 / 111

页数：6

相关论文

共 13 条

[1]

Achasov N. N., 1991, Nuclear Physics B, Proceedings Supplements, V21, P189, DOI 10.1016/0920-5632(91)90257-F

[2] SUMS OF THE SEARCH FOR 4-QUARK STATES IN GAMMA-GAMMA COLLISIONS [J].

ACHASOV, NN ;

SHESTAKOV, GN .

USPEKHI FIZICHESKIKH NAUK, 1991, 161 (06) :53-108

[3]

ACHASOV NN, 1984, USP FIZ NAUK+, V142, P361, DOI 10.1070/PU1984v027n03ABEH004034

[4] SITUATION AROUND THE A0 (980) MESON AFTER THE EXPERIMENT GAMMA-GAMMA-]A0-]PI-0-ETA [J].

ACHASOV, NN ;

SHESTAKOV, GN .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1988, 41 (02) :309-317

[5] ON A SEARCH FOR 4-QUARK STATES IN RADIATIVE DECAYS OF PH/-MESONS [J].

ACHASOV, NN ;

IVANCHENKO, VN .

NUCLEAR PHYSICS B, 1989, 315 (02) :465-476

[6]

AKHMETSHIN RR, PITT9405 U PITTSB PR

[7] F(0)(975), A(0)(980) AS EYEWITNESSES OF CONFINEMENT [J].

CLOSE, FE ;

DOKSHITZER, YL ;

GRIBOV, VN ;

KHOZE, VA ;

RYSKIN, MG .

PHYSICS LETTERS B, 1993, 319 (1-3) :291-299

[8] SCALAR MESONS IN PHI RADIATIVE DECAY - THEIR IMPLICATIONS FOR SPECTROSCOPY AND FOR STUDIES OF CP VIOLATION AT PHI FACTORIES [J].

CLOSE, FE ;

ISGUR, N ;

KUMANO, S .

NUCLEAR PHYSICS B, 1993, 389 (02) :513-533

[9] MULTI-QUARK HADRONS .1. PHENOMENOLOGY OF Q2QBAR2 MESONS [J].

JAFFE, RJ .

PHYSICAL REVIEW D, 1977, 15 (01) :267-280

[10] MULTI-QUARK HADRONS .2. METHODS [J].

JAFFE, RL .

PHYSICAL REVIEW D, 1977, 15 (01) :281-289