Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)

The Crystal Ball at MAMI collaboration McNicoll, E.F. ; Prakhov, S. ; Strakovsky, I.I. ; et al.
Phys.Rev.C 82 (2010) 035208, 2010.
Inspire Record 860725 DOI 10.17182/hepdata.56733

The gp-->etap reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 =< W >= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow Tagging Spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10^6 gp-->etap-->3pi0p-->6gp events allows a detailed study of the reaction dynamics. The gp-->etap differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to thelatest SAID and MAID fits that have included our data.

121 data tables

Total cross section for the reaction GAMMA P --> ETA P.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 710.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 714.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

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MEASUREMENT OF THE CROSS-SECTION OF FORWARD COMPTON SCATTERING ON He-4 NUCLEI AT E (gamma) = 1.8-GeV + 3.8-GeV

Aleksanian, A.S. ; Babaian, G.E. ; Voskanian, A.V. ; et al.
Sov.J.Nucl.Phys. 45 (1987) 628, 1987.
Inspire Record 236051 DOI 10.17182/hepdata.18431

None

3 data tables

MODEL DEPENDENT ESTIMATION.

No description provided.

No description provided.


Scattering of 1-GeV Protons on Nuclei

Alkhazov, G.D. ; Belostotsky, S.L. ; Vorobev, A.A ;
Phys.Rept. 42 (1978) 89-144, 1978.
Inspire Record 135538 DOI 10.17182/hepdata.70484

The 1 GeV high resolution proton nucleus scattering is reviewed. The effects from nuclear correlations are considered in detail. The sensitivity of differential cross sections to the one particle density and NN amplitude parameters are demonstrated. An analysis of the elastic proton scattering from the zero-spin nuclei and the obtained information on the neutron and matter distributions are presented. The scattering from a few nonspherical light nuclei is analysed. The first results on proton-nucleus polarization are discussed.

4 data tables

X ERROR D(THETA) = 0.0300 DEG.

X ERROR D(THETA) = 0.0300 DEG.

X ERROR D(THETA) = 0.0300 DEG.

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Electron-Proton Scattering at High Momentum Transfers

Chen, K.W. ; Cone, A.A. ; Dunning, J.R. ; et al.
Phys.Rev.Lett. 11 (1963) 561-564, 1963.
Inspire Record 945163 DOI 10.17182/hepdata.21832

None

4 data tables

No description provided.

No description provided.

No description provided.

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