cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.132013.v1/t25
title: "dcs12_25" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-1/2 at W= 1.847 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/t26
title: "dcs12_26" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-1/2 at W= 1.863 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/t27
title: "dcs12_27" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-1/2 at W= 1.883 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/t28
title: "dcs32_01" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.505 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/t29
title: "dcs32_02" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.515 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/t30
title: "dcs32_03" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.525 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/t31
title: "dcs32_04" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.535 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/t32
title: "dcs32_05" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.548 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/t33
title: "dcs32_06" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 at W= 1.562 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/t34
title: "dcs32_07" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t35
title: "dcs32_08" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t36
title: "dcs32_09" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t37
title: "dcs32_10" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t38
title: "dcs32_11" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t39
title: "dcs32_12" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t40
title: "dcs32_13" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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/t41
title: "dcs32_14" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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: 10.25549/vercoutere-ouc110637157
title: Ancient Chinese man's head with a hat molded in clay

description: Partially glazed clay sculpture of a young Asian man with black hair and a headdress; lower part of headdress on left side and hair tail at base of head are missing
DOI: 10.17182/hepdata.132013.v1/t42
title: "dcs32_15" of "Helicity-dependent cross sections and double-polarization observable E in eta photoproduction from quasi-free protons and neutrons"

description: Diff. cross section for helicity-3/2 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%.