NEAR-THRESHOLD PHOTOPRODUCTION OF ETA-MESONS OFF THE PROTON

被引：379

作者：

KRUSCHE, B

AHRENS, J

ANTON, G

BECK, R

FUCHS, M

GABLER, AR

HARTER, F

HALL, S

HARTY, P

HLAVAC, S

MACGREGOR, D

MCGEORGE, C

METAG, V

OWENS, R

PEISE, J

ROBIGLANDAU, M

SCHUBERT, A

SIMON, RS

STROHER, H

TRIES, V

机构：

[1] UNIV MAINZ,INST KERNPHYS,D-55099 MAINZ,GERMANY

[2] UNIV GLASGOW,KELVIN LAB,GLASGOW,LANARK,SCOTLAND

[3] UNIV BONN,INST PHYS,D-53115 BONN,GERMANY

[4] GESELL SCHWERIONENFORSCH MBH,D-64220 DARMSTADT,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.74.3736

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured precise total and differential cross sections for the reaction γp→pη from threshold to 790 MeV at the MAMI accelerator in Mainz with the neutral meson spectrometer TAPS. Resonance parameters of the S11(1535) resonance and the electromagnetic coupling γp→S11 have been extracted from the data. Contributions from the D13(1520) resonance to η photoproduction in the threshold region have been identified for the first time via interference terms in the angular distributions. © 1995 The American Physical Society.

引用

页码：3736 / 3739

页数：4

共 17 条

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