cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.132013.v1/t61
title: "E_07" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.577 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t62
title: "E_08" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.593 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t63
title: "E_09" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.607 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t64
title: "E_10" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.623 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t65
title: "E_11" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.637 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t66
title: "E_12" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.653 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t67
title: "E_13" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.667 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t68
title: "E_14" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.683 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t69
title: "E_15" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.698 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t70
title: "E_16" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.712 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t71
title: "E_17" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.728 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t72
title: "E_18" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.742 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t73
title: "E_19" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.758 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t74
title: "E_20" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.772 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t75
title: "E_21" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.788 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t76
title: "E_22" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.802 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t77
title: "E_23" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.817 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.
DOI: 10.17182/hepdata.132013.v1/t78
title: "E_24" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Beam-target asymmetry E at W= 1.833 GeV
description: A2 Collaboration at MAMI.
Precise helicity-dependent cross sections and the
double-polarization observable E were measured for $\eta$
photoproduction from quasifree protons and neutrons bound in the
deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize
the statistical quality of the data and to estimate systematic
uncertainties. The measurement used the A2 detector setup at the
tagged photon beam of the electron accelerator MAMI in Mainz.
A longitudinally polarized deuterated butanol target was used in
combination with a circularly polarized photon beam from
bremsstrahlung of a longitudinally polarized electron beam. The
reaction products were detected with the electromagnetic
calorimeters Crystal Ball and TAPS, which covered 98% of the full
solid angle. The main systematic uncertainty of the E asymmetry
is related to the measurement of the beam and target
polarizations. The uncertainty of the photon polarization degree
was determined to be ±2.7%. The uncertainty of the target
polarization was estimated as ±10%.