cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.132013.v1/t7
title: "dcs12_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-1/2 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/t8
title: "dcs12_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-1/2 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/t9
title: "dcs12_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-1/2 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/t10
title: "dcs12_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-1/2 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/t11
title: "dcs12_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-1/2 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/t12
title: "dcs12_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-1/2 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/t13
title: "dcs12_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-1/2 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/t14
title: "dcs12_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-1/2 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: 10.17182/hepdata.132013.v1/t15
title: "dcs12_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-1/2 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%.
DOI: 10.17182/hepdata.132013.v1/t16
title: "dcs12_16" 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= 1.712 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/t18
title: "dcs12_18" 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= 1.742 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: 10.25549/vercoutere-ouc1sto1769455
title: Therapeutic Artworks

description: This collection includes over 900 pieces of art that were created by patients at the Atascadero State Hospital (ASH) in the mid-1950’s.  The artists were under the treatment of Albert R. Vercoutere who used the technique of providing photos from magazines for the patients to use as inspiration for their own artwork. Although not trained in the use of art therapy and during a time when art therapy was a new approach, Vercoutere often utilized art as a mechanism for working with his patients. The artwork was created during a time when psychotropic drugs were not yet available as treatment options for mental health patients.
DOI: 10.17182/hepdata.132013.v1/t17
title: "dcs12_17" 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= 1.728 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/t19
title: "dcs12_19" 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= 1.758 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/t20
title: "dcs12_20" 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= 1.772 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/t21
title: "dcs12_21" 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= 1.788 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/t22
title: "dcs12_22" 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= 1.802 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/t23
title: "dcs12_23" 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= 1.817 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/t24
title: "dcs12_24" 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= 1.833 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%.