$\omega$-meson production by virtual photons

Joos, P.; Yellin, S.; Smith, K.; Meyer, H.; Ladage, A.; Skillicorn, I. O.; Hoffmann, D.; Spitzer, H.; Drews, G.; Rabe, E.; Nagel, H.; Benz, C.; Sander, C.; Schlatter, W.-D.; Chen, C. K.; Scarr, J. M.; Knobloch, J.; Kraus, W.; Wacker, K.; Stein, P.; Knowles, J.; Wolf, G.; Martin, D.

doi:10.1016/0550-3213(77)90133-X

Report/Internal Report

PUBDB-2017-12174

$\omega$-meson production by virtual photons

Joos, P. ; Ladage, A. ; Meyer, H. ; Stein, P. ; Wolf, G.DESY* ; Yellin, S. ; Chen, C. K. ; Knowles, J. ; Martin, D. ; Scarr, J. M. ; Skillicorn, I. O. ; Smith, K.Extern* ; Benz, C. ; Drews, G. ; Hoffmann, D.Extern* ; Knobloch, J.DESY* ; Kraus, W. ; Nagel, H. ; Rabe, E. ; Sander, C.DESY* ; Schlatter, W.-D. ; Spitzer, H.Extern* ; Wacker, K.

1977

(1977) [10.1016/0550-3213(77)90133-X]

This record in other databases:

Please use a persistent id in citations: doi:10.1016/0550-3213(77)90133-X doi:10.3204/PUBDB-2017-12174

Report No.: DESY-77-009

Abstract: Qausi-elastic ω production by ep scattering in the kinematic region 0.3. < Q 2 < 1.4 GeV 2 and 1.7 < W < 2.8 GeV was studied using a streamer chamber at DESY. The production angular distribution for γ V p → ω p has a strong non-peripheral component for W < 2 GeV. The ω production cross section falls by a factor of 4 as W changes from 1.7 to 2.8 GeV. In contrast the cross section for ω production with | t | < 0.5 GeV 2 is W independent between 1.7 and 2.8 GeV and for W > 2.0 GeV consistent in both W and Q 2 dependence with the predictions of a model based on one-pion exchange and diffraction.

Keyword(s): ELECTRON P: INTERACTION ; INTERACTION: ELECTRON P ; P: FINAL STATE ; FINAL STATE: P ; PI+: FINAL STATE ; FINAL STATE: PI+ ; PI-: FINAL STATE ; FINAL STATE: PI- ; PI0: FINAL STATE ; FINAL STATE: PI0 ; ELECTRON: FINAL STATE ; FINAL STATE: ELECTRON ; OMEGA(784): ELECTROPRODUCTION ; ELECTROPRODUCTION: OMEGA(784) ; FINAL STATE: (PI+ PI- PI0) ; MASS SPECTRUM ; DIFFERENTIAL CROSS SECTION ; TOTAL CROSS SECTION ; OMEGA(784): NONLEPTONIC DECAY ; NONLEPTONIC DECAY: OMEGA(784) ; ANGULAR DISTRIBUTION: NONLEPTONIC DECAY ; NONLEPTONIC DECAY: ANGULAR DISTRIBUTION ; MODEL: DIFFERENTIAL CROSS SECTION ; DIFFERENTIAL CROSS SECTION: MODEL ; EXCHANGE: ONE-PION ; DIFFRACTION ; SPIN: DENSITY MATRIX ; STREAMER CHAMBER: EXPERIMENTAL RESULTS ; EXPERIMENTAL RESULTS: STREAMER CHAMBER ; DESY ES ; ELECTRON P --> P OMEGA(784)(PI+ PI- PI0) ELECTRON ; 1.7-2.8 GEV-CM: 0.3-1.4 GEV-SQUARED