THE ELECTRIC-DIPOLE AMPLITUDES OF THE NEUTRAL PION-PHOTOPRODUCTION ON THE PROTON NEAR-THRESHOLD

被引：5

作者：

YU, BG ^{[1
]}

CHEON, IT ^{[1
]}

JEONG, MT ^{[1
]}

机构：

[1] DONGSHIN UNIV, DEPT PHYS, NAJU 520714, SOUTH KOREA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1994年 / 63卷 / 01期

关键词：

ELECTROMAGNETIC DIPOLE AMPLITUDES; PION PHOTOPRODUCTION; VECTOR MESONS; RHO-PI-GAMMA AND OMEGA-PI-GAMMA COUPLING CONSTANTS; LOW ENERGY THEOREM;

D O I：

10.1143/JPSJ.63.78

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electric dipole amplitude E(0+) for p(gamma, pi(0))p near threshold has been extracted from the experimental data by fitting the total cross section in high energy region, E(g)amma > 160 MeV. The result is (-1.56+/-0.10)x10(-3) m(pi+)(-1). This amplitude is calculated by taking the vector mesons into account in the pole model of t-channel. Our analysis manifests a favor of negative sign for the rho pi gamma coupling constant.

引用

页码：78 / 83

页数：6

共 50 条

[31] NEUTRAL PION-PHOTOPRODUCTION AT THRESHOLD AND EXPLICIT CHIRAL SYMMETRY-BREAKING
SCHAFER, T
WEISE, W
PHYSICS LETTERS B, 1990, 250 (1-2) : 6 - 10
[32] PION-PHOTOPRODUCTION FROM DEUTERONS AT THRESHOLD
TZARA, C
NUCLEAR PHYSICS A, 1976, 256 (03) : 381 - 386
[33] POLARIZATION PARAMETERS IN NEUTRAL PION-PHOTOPRODUCTION
BUSSEY, PJ
RAINE, C
RUTHERGLEN, JG
BOOTH, PSL
CARROLL, LJ
COURT, GR
DANIEL, PR
EDWARDS, AW
GAMET, R
HARDWICK, CJ
HAYMAN, PJ
HOLT, JR
JACKSON, JN
RANGE, WH
COMBLEY, FH
GALBRAITH, W
RAJARATNAM, VH
SUTTON, C
NUCLEAR PHYSICS B, 1979, 154 (03) : 492 - 502
[34] MESON EXCHANGE PI-N MODEL AND NEUTRAL PION-PHOTOPRODUCTION FROM PROTONS NEAR THRESHOLD
LEE, CC
YANG, SN
LEE, TSH
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1991, 17 (08) : L131 - L137
[35] APPLICATIONS OF INTERIOR DISPERSION-RELATIONS TO PION-PHOTOPRODUCTION NEAR THRESHOLD
MCCLASKEY, R
JACOB, RJ
HITE, GE
PHYSICAL REVIEW D, 1978, 18 (03): : 660 - 669
[36] NEUTRAL-PION PHOTOPRODUCTION ON PROTONS NEAR THRESHOLD
DAVIDSON, R
MUKHOPADHYAY, NC
PHYSICAL REVIEW LETTERS, 1988, 60 (08) : 748 - 748
[37] THRESHOLD EFFECTS IN NEUTRAL PION-PHOTOPRODUCTION REACTIONS ON FEW-BODY TARGETS
LAGET, JM
BOSTED, P
PHYSICS LETTERS B, 1979, 88 (1-2) : 18 - 22
[38] THRESHOLD PION-PHOTOPRODUCTION AND CHIRAL MODELS OF THE NUCLEON
SCHAFER, T
WEISE, W
NUCLEAR PHYSICS A, 1991, 531 (3-4) : 520 - 538
[39] Beam asymmetries in near-threshold ω photoproduction off the proton
Klein, Frank
Anisovich, A. V.
Bacelar, J. C. S.
Bantes, B.
Bartholomy, O.
Bayadilov, D.
Beck, R.
Beloglazov, Y. A.
Castelijns, R.
Crede, V.
Dutz, H.
Ehmanns, A.
Elsner, D.
Essig, K.
Ewald, R.
Fabry, I.
Fuchs, M.
Funke, Ch.
Gregor, R.
Gridnev, A. B.
Gutz, E.
Hoeffgen, S.
Hoffmeister, P.
Horn, I.
Jaegle, I.
Junkersfeld, J.
Kalinowsky, H.
Kammer, S.
Kleber, V.
Klein, Friedrich
Klempt, E.
Konrad, M.
Kotulla, M.
Krusche, B.
Lang, M.
Loehner, H.
Lopatin, I. V.
Lotz, J.
Lugert, S.
Menze, D.
Mertens, T.
Messchendorp, J. G.
Metag, V.
Morales, C.
Nanova, M.
Nikonov, V. A.
Novinski, D.
Novotny, R.
Ostrick, M.
Pant, L. M.
PHYSICAL REVIEW D, 2008, 78 (11):
[40] PION-PHOTOPRODUCTION ON HE-3 AT THRESHOLD
TIATOR, L
NUCLEAR PHYSICS A, 1981, 364 (2-3) : 189 - 193

← 1 2 3 4 5 →