cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.130235.v1/t74
title: "gn-dcs28" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7150 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t75
title: "gn-dcs29" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7250 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t76
title: "gn-dcs30" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7350 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t77
title: "gn-dcs31" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7450 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t78
title: "gn-dcs32" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7550 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t79
title: "gn-dcs33" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7650 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t80
title: "gn-dcs34" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7750 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t81
title: "gn-dcs35" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7850 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t82
title: "gn-dcs36" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.7950 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t83
title: "gn-dcs37" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8050 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t84
title: "gn-dcs38" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8150 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t85
title: "gn-dcs39" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8250 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t86
title: "gn-dcs40" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8350 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t87
title: "gn-dcs41" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8450 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t88
title: "gn-dcs42" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8550 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t89
title: "gn-dcs43" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8650 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130235.v1/t90
title: "gn-dcs44" of "Quasifree photoproduction of $\eta$ mesons off protons and neutrons"

description: Differential cross section at W= 1.8750 GeV
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to \eta p$ and $\gamma n \to \eta n$ have been determined
at the MAMI-C electron accelerator by using a liquid deuterium
target. Photons were produced via bremsstrahlung from the 1.5 GeV
incident electron beam and energy tagged with the Glasgow photon
tagger. Decay photons of the neutral decay modes $\eta \to 2\gamma$
and \eta \to 3\pi^0$ and coincident recoil nucleons were detected
in a combined setup of the Crystal Ball and the TAPS calorimeters.
The $\eta$-production cross sections were measured in coincidence
with recoil protons, recoil
neutrons, and in an inclusive mode without a condition on recoil
nucleons, which allowed a check of the internal consistency of 
the data. The effects from nuclear Fermi motion were removed by
a kinematic reconstruction of the final-state invariant mass and
possible nuclear effects on the quasifree cross section were
investigated by a comparison of free and quasifree-proton data.
The systematic uncertainties for the proton analyses are about
6%–7%, for the neutron analyses are around 12%.
DOI: 10.17182/hepdata.130236.v1/t1
title: "K0Sp-tcs.yaml" of "Experimental study of the $\gamma p\rightarrow K^0\Sigma^+$, $\gamma n\rightarrow K^0\Lambda$, and $\gamma n\rightarrow K^0 \Sigma^0$ reactions at the Mainz Microtron"

description: Total cross section as a function of c.m. energy W.
description: A2 Collaboration at MAMI.
Differential and total cross sections for the quasifree reactions
$\gamma p \to K^0\Sigma^+$, $\gamma n \to K^0\Lambda$ and $\gamma n \to K^0\Sigma^0$
have been measured from threshold up to a c.m. energy W = 1855 MeV
at the MAMI-C electron accelerator by using a liquid deuterium
target. W was calculated from the incident beam energy assuming
quasifree kinematics. Fermi-motion corrections were not possible
in the present analysis due to the large combinatoric background.
The systematic uncertainty is the combination of uncertainties from
the photon flux (from 1.1% to 2.4%), acceptance (from 2% to 4%), and
branching ratios (1.4% for $\gamma n \to K^0\Lamda$ and $\gamma n \to K^0\Sigma^0$,
and 0.6% for $\gamma p \to K^0\Sigma^+$). The statistical
uncertainties are dominate and varied from a maximum of 34% at
$cos\Theta_{cm}=0.625$ to a minimum of 14% at $cos\Theta_{cm}=-0.625$.
Total cross sections were extracted by fitting the differential
cross sections with Legendre polynomials.