MEASUREMENT OF THE 2-PHOTON WIDTH OF THE ETA'(958)

被引：13
|
作者：
BUTLER, F
BOYER, J
GIDAL, G
ABRAMS, G
AMIDEI, D
BADEN, AR
GOLD, MS
GOLDHABER, G
GOLDING, L
HAGGERTY, J
HERRUP, D
JURICIC, I
KADYK, JA
LEVI, ME
NELSON, ME
ROWSON, PC
SCHELLMAN, H
SCHMIDKE, WB
SHELDON, PD
TRILLING, GH
WOOD, DR
RILES, K
PERL, ML
BARKLOW, T
BOYARSKI, A
BURCHAT, PR
BURKE, DL
DORFAN, JM
FELDMAN, GJ
GLADNEY, L
HANSON, G
HAYES, K
HOLLEBEEK, RJ
INNES, WR
JAROS, JA
KARLEN, D
KLEIN, SR
LANKFORD, AJ
LARSEN, RR
LECLAIRE, BW
LOCKYER, NS
LUTH, V
ONG, RA
RICHTER, B
YELTON, JM
SCHAAD, T
机构：
[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
[2] UNIV CALIF BERKELEY,BERKELEY,CA 94720
[3] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305
[4] HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138
来源：
PHYSICAL REVIEW D | 1990年 / 42卷 / 05期
关键词：
D O I：
10.1103/PhysRevD.42.1368
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using 203 pb-1 of data collected by the Mark II detector at the SLAC storage ring PEP, we have measured the radiative width of the for quasireal photons. The width is separately measured in the three reactions e+e-e+e-0+-,0; e+e-e+e-0+-; 0+-(0,), and e+e-e+e-0, giving a statistically weighted average two-photon width of=4.57±0.25±0.44 keV. As a byproduct of the study of the decay mode, we also measured the two-photon decay width of the a2(1320) as a2(1320)=1.03±0.13±0.21 keV. © 1990 The American Physical Society.
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页码：1368 / 1384
页数：17
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