PHOTOPRODUCTION OF A2 MESON IN REACTION GAMMARHO-]NPI+PI+PI- AND AN ESTIMATE OF A2GAMMAPI WIDTH

被引:38
作者
EISENBERG, Y
HABER, B
HOROVITZ, B
PELEG, E
RONAT, EE
SHAPIRA, A
VISHINSKY, G
YEKUTIELI, G
机构
[1] The Weizmann Institute of Science, Rehovoth
[2] Stanford Linear Accelerator Center, Stanford University, Stanford
[3] Physics Department, Tel-Aviv University, Tel-Aviv
[4] Max-Planck Institute, Munich
[5] Deutsches Elektronen-Synchrotron, Hamburg
关键词
D O I
10.1103/PhysRevLett.23.1322
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We observe production of the A2 meson in the reaction γp→nπ+π+π- at 4.3 and 5.25 GeV. The data are consistent with a one-pion-exchange production mechanism and we give an estimate of Γ(A2→γπ)0.5 MeV. A similar value for Γ(A2→γπ) is also obtained using a vector dominance model. © 1969 The American Physical Society.
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页码:1322 / +
页数:1
相关论文
共 13 条
[1]   STUDY OF ELECTRON-POSITRON ANNIHILATION INTO PI+PI- ON P0 RESONANCE [J].
AUGUSTIN, JE ;
BIZOT, JC ;
BUON, J ;
HAISSINSKI, J ;
LALANNE, D ;
MARIN, P ;
NGOC, HN ;
PEREZ, J ;
RUMPF, F ;
SILVA, E ;
TAVERNIER, S .
PHYSICS LETTERS B, 1969, B 28 (07) :508-+
[2]   PARTIAL PHOTOPRODUCTION CROSS SECTIONS UP TO 12 GEV [J].
BALLAM, J ;
CHADWICK, GB ;
GUIRAGOSSIAN, ZG ;
KLEIN, P ;
LEVY, A ;
MENKE, M ;
PICKUP, E ;
TAN, TH ;
SEYBOTH, P ;
WOLF, G .
PHYSICAL REVIEW LETTERS, 1968, 21 (22) :1541-+
[3]   GAMMA-RHO TOTAL HADRONIC CROSS SECTIONS AT 7.5 GEV [J].
BALLAM, J ;
CHADWICK, GB ;
GUIRAGOSSIAN, ZG ;
KLEIN, P ;
LEVY, A ;
MENKE, M ;
PICKUP, E ;
SEYBOTH, P ;
TAN, TH ;
WOLF, G .
PHYSICAL REVIEW LETTERS, 1968, 21 (22) :1544-+
[4]  
BALLAM J, 1969, SLACPUB625 STANF U S
[5]   PHOTOPRODUCTION OF VECTOR MESONS AND OTHER RESONANCES AT 4.3-BEV [J].
EISENBERG, Y ;
HABER, B ;
CARMEL, Z ;
PELEG, E ;
RONAT, EE ;
SHAPIRA, A ;
VISHINSKY, G ;
YAARI, R ;
YEKUTIELI, G .
PHYSICAL REVIEW LETTERS, 1969, 22 (13) :669-+
[6]   SYMMETRY PREDICTIONS FROM SUM RULES WITHOUT SATURATION [J].
GILMAN, FJ ;
SCHNITZER, HJ .
PHYSICAL REVIEW, 1966, 150 (04) :1362-+
[7]   1-PION EXCHANGE AND SINGLE-ISOBAR PRODUCTION IN PP COLLISIONS BETWEEN 3 AND 30 GEV [J].
HABER, B ;
YEKUTIEL.G .
PHYSICAL REVIEW, 1967, 160 (05) :1410-&
[8]   PHENOMENOLOGICAL ANALYSIS OF PHOTOPRODUCTION OF NEUTRAL VECTOR MESONS AND STRANGE PARTICLES [J].
HARARI, H .
PHYSICAL REVIEW, 1967, 155 (05) :1565-&
[9]   ABSORPTION MODEL AND PRODUCTION OF 2+ MESONS [J].
HOGAASEN, H ;
HOGAASEN, J ;
KEYSER, R ;
SVENSSON, BE .
NUOVO CIMENTO A, 1966, 42 (02) :323-+
[10]   PERIPHERAL PRODUCTION AND DECAY OF RESONANCES IN HIGH-ENERGY MESON-NUCLEON COLLISIONS [J].
JACKSON, JD ;
DONOHUE, JT ;
GOTTFRIED, K ;
KEYSER, R ;
SVENSSON, BE .
PHYSICAL REVIEW, 1965, 139 (2B) :B428-+