TRANSITION FORM-FACTORS IN PI-0, ETA, AND ETA' COUPLINGS TO GAMMA-GAMMA-STAR

被引：48

作者：

AMETLLER, L

BIJNENS, J

BRAMON, A

CORNET, F

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV AUTONOMA BARCELONA,FIS TEOR GRP,E-08193 BARCELONA,SPAIN

[3] UNIV GRANADA,DEPT FIS TEOR & COSMOS,E-18071 GRANADA,SPAIN

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.45.986

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent measurements of the transition form factors for the P-gamma-gamma* vertices, with P = pi-0, eta, and eta', are compared with different models. These include vector-meson dominance, constituent-quark loops, the QCD-inspired interpolation by Brodsky-Lepage, and chiral perturbation theory. General agreement is observed and differences-due to SU(3) breaking-are stressed and discussed.

引用

页码：986 / 989

页数：4

共 17 条

[1] INVESTIGATION OF THE ELECTROMAGNETIC STRUCTURE OF ETA AND ETA' MESONS BY 2-PHOTON INTERACTIONS [J].

AIHARA, H ;

ALSTONGARNJOST, M ;

AVERY, RE ;

BARBAROGALTIERI, A ;

BARKER, AR ;

BARNETT, BA ;

BAUER, DA ;

BAY, A ;

BOBBINK, GJ ;

BUCHANAN, CD ;

BUIJS, A ;

CALDWELL, DO ;

CHAO, HY ;

CHUN, SB ;

CLARK, AR ;

COWAN, GD ;

CRANE, DA ;

DAHL, OI ;

DAOUDI, M ;

DERBY, KA ;

EASTMAN, JJ ;

EBERHARD, PH ;

EDBERG, TK ;

EISNER, AM ;

ERNE, FC ;

FAIRFIELD, KH ;

HAUPTMAN, JM ;

HOFMANN, W ;

HYLEN, J ;

KAMAE, T ;

KAYE, HS ;

KENNEY, RW ;

KHACHERYAN, S ;

KOFLER, RR ;

LANGEVELD, WGJ ;

LAYTER, JG ;

LIN, WT ;

LINDE, FL ;

LOKEN, SC ;

LU, A ;

LYNCH, GR ;

MADARAS, RJ ;

MAGNUSON, BD ;

MASEK, GE ;

MATHIS, LG ;

MATTHEWS, JAJ ;

MAXFIELD, SJ ;

MILLER, ES ;

MOSES, W ;

NYGREN, DR .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :172-175

[2] THE QUARK TRIANGLE - APPLICATION TO PION AND ETA DECAYS [J].

AMETLLER, L ;

BERGSTROM, L ;

BRAMON, A ;

MASSO, E .

NUCLEAR PHYSICS B, 1983, 228 (02) :301-315

[3]

BEHREND HJ, 1991, Z PHYS C PART FIELDS, V49, P401, DOI 10.1007/BF01549692

[4] PSEUDOSCALAR DECAYS INTO 2 PHOTONS IN CHIRAL PERTURBATION-THEORY [J].

BIJNENS, J ;

BRAMON, A ;

CORNET, F .

PHYSICAL REVIEW LETTERS, 1988, 61 (13) :1453-1456

[5] CHIRAL PERTURBATION-THEORY FOR ANOMALOUS PROCESSES [J].

BIJNENS, J ;

BRAMON, A ;

CORNET, F .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1990, 46 (04) :599-607

[6] ETA-ETA' MIXING ANGLE FROM DUALITY AND QUARK-MODEL [J].

BRAMON, A .

PHYSICS LETTERS B, 1974, B 51 (01) :87-92

[7] Q2-DUALITY FOR ELECTROMAGNETIC FORM-FACTORS OF MESONS [J].

BRAMON, A ;

MASSO, E .

PHYSICS LETTERS B, 1981, 104 (04) :311-314

[8] LARGE-ANGLE 2-PHOTON EXCLUSIVE CHANNELS IN QUANTUM CHROMODYNAMICS [J].

BRODSKY, SJ ;

LEPAGE, GP .

PHYSICAL REVIEW D, 1981, 24 (07) :1808-1817

[9] ISSUE OF PSI-]GAMMA-ETA,GAMMA-ETA' DECAYS AND ETA-ETA' MIXING [J].

CHAO, KT .

PHYSICAL REVIEW D, 1989, 39 (05) :1353-1356

[10] CHIRAL LOOPS IN PI-0,ETA-0-]GAMMA-GAMMA AND ETA-ETA' MIXING [J].

DONOGHUE, JF ;

HOLSTEIN, BR ;

LIN, YCR .

PHYSICAL REVIEW LETTERS, 1985, 55 (25) :2766-2769

← 1 2 →