0000000001299127
AUTHOR
J.c. Mcgeorge
showing 51 related works from this author
Measurement of the decay η′→π0π0η at MAMI
2018
An experimental study of the eta' -> pi(0)pi(0)eta -> 6 gamma decay has been conducted with the best up-to-date statistical accuracy, by measuring. 0 mesons produced in the gamma p -> eta'p reaction with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The results obtained for the standard parametrization of the eta' -> pi(0)pi(0)eta matrix element are consistent with the most recent results for eta' -> pi pi eta decays, but have smaller uncertainties. The available statistics and experimental resolution allowed, for the first time, an observation of a structure below the pi(+)pi(-) thorn p-mass threshold, the magnitude and sign of which, checked within the framewo…
Determination of the total photo-absorption cross section of 197Au from () reaction cross sections
1984
Abstract Cross sections for the reactions 197Au ( γ, ℩ n ) (x ⩽ 12) have been measured for bremsstrahlung end-point energies in the range 60–340 MeV. From these dominant cross sections, the total photon absorption cross section is determined using a cascade-evaporation calculation to account for the missing reaction channels. The enhancement factor for the classical E1 sum rule is found to be 0.93 ± 0.10.
Study of η and η' Photoproduction at MAMI
2017
The reactions γp → ηp and γp → η0\ud p are measured from their thresholds up to the center-of-mass\ud energy W ¼ 1.96 GeV with the tagged-photon facilities at the Mainz Microtron, MAMI. Differential cross\ud sections are obtained with unprecedented statistical accuracy, providing fine energy binning and full\ud production-angle coverage. A strong cusp is observed in the total cross section for η photoproduction at the\ud energies in the vicinity of the η0 threshold, W ¼ 1896 MeV (Eγ ¼ 1447 MeV). Within the framework of a\ud revised ηMAID isobar model, the cusp, in connection with a steep rise of the η0 total cross section from its\ud threshold, can only be explained by a strong coupling of …
"Table 1" of "Differential cross section for the reaction $^2$H(��,p)n from 133 to 158 MeV"
2015
No description provided.
"Table 6" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+/- production with a Lead target. Errors are statistical only.
"dcs09" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7891 GeV
"dcs02" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7319 GeV
"Table 2" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a Carbon target. Errors are statistical only.
"Table 2" of "C-12 (gamma,p) B-11 cross-section from 80 to 157 MeV"
1995
EX = 7 (FROM 6.5 TO 8.0 MEV). ANGULAR BINS OF 5 DEG WIDTH.
"Table 3" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"Table 2" of "The 16O(��, 2N) reaction measured with tagged photons"
2015
PROPOSED THAT THE REACTION IS DUE TO A QUASI DEUTERON MECHANISM AND P N PAIRS E]ECT FROM THE 1P SHELL.
"Table 1" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a proton target. Errors are statistical only. Note that the data given in this table are sightly different (newer) than the data points presented in the paper.
"dcs13" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8192 GeV
"Table 4" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+ production with a proton target. Errors are statistical only. Note that the data given in this table are sightly different (newer) than the data points presented in the paper.
"Table 6" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"dcs04" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7490 GeV
"Table 3" of "Quasi-free Compton Scattering and the Polarizabilities of the Neutron"
2003
Energy dependence of the triple differential cross section w.r.t. the scattered proton.
"Table 3" of "C-12 (gamma,p) B-11 cross-section from 80 to 157 MeV"
1995
EX = 13 (FROM 12.0 TO 13.5 MEV). ANGULAR BINS OF 5 DEG WIDTH.
"dcs05" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7568 GeV
"Table 4" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"dcs19" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8657 GeV
"Table 3" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI0 production with a Lead target. Errors are statistical only.
"dcs06" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7645 GeV
"Table 1" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"Table 1" of "Double pi0 photoproduction off the proton at threshold."
2004
Total cross section measurement. Statistical errors only.
"Table 2" of "Quasi-free Compton Scattering and the Polarizabilities of the Neutron"
2003
Energy dependence of the quasi-free proton differential cross section.
"Table 7" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"dcs11" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8045 GeV
"dcs12" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8119 GeV
"Table 5" of "In-medium modifications of the pi pi interaction in photon-induced reactions."
2005
Differential cross section for PI0PI+/- production with a Carbon target. Errors are statistical only.
"tcs" of "Photoproduction of the omega meson off the proton near threshold"
2022
Total cross section as a function of c.m. energy W.
"dcs17" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8504 GeV
"dcs01" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7245 GeV
"dcs20" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8720 GeV
"Table 1" of "C-12 (gamma,p) B-11 cross-section from 80 to 157 MeV"
1995
EX IN 0 MEV REGION (FROM 0 TO 1.5 MEV). ANGULAR BINS OF 5 DEG WIDTH.
"Table 2" of "Differential cross section for the reaction $^2$H(��,p)n from 133 to 158 MeV"
2015
No description provided.
"Table 2" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"Table 5" of "Quasi-free Compton Scattering and the Polarizabilities of the Neutron"
2003
Energy dependence of the free neutron differential cross section.
"Table 4" of "Quasi-free Compton Scattering and the Polarizabilities of the Neutron"
2003
Energy dependence of the triple differential cross section w.r.t. the scattered neutron.
"Table 1" of "Test of low-energy theorems for p(gamma(pol.),pi0)p in the threshold region."
1995
Polarized photon beam.
"dcs18" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8581 GeV
"dcs16" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8424 GeV
"dcs07" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7729 GeV
"dcs03" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7401 GeV
"dcs14" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8269 GeV
"dcs10" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7968 GeV
"dcs08" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.7811 GeV
"Table 1" of "Quasi-free Compton Scattering and the Polarizabilities of the Neutron"
2003
Energy dependence of the free-proton differential cross section.
"Table 5" of "Scaling of the $^{4}$He(��,p)t reaction in the $E_\gamma$ = 80���160 MeV region"
2015
No description provided.
"Table 1" of "The 16O(��, 2N) reaction measured with tagged photons"
2015
PROPOSED THAT THE REACTION IS DUE TO A QUASI DEUTERON MECHANISM AND P N PAIRS E]ECT FROM THE 1P SHELL.
"dcs15" of "Photoproduction of the omega meson off the proton near threshold"
2022
Differential cross section at W= 1.8348 GeV