SINGLE NEGATIVE PION PHOTOPRODUCTION ON DEUTERIUM IN THE ENERGY RANGE (500-MeV - 800-MeV): PRELIMINARY INVESTIGATION

Beneventano, M. ; de Notaristefani, F. ; Monacelli, P. ; et al.
Lett.Nuovo Cim. 1 (1969) 113-118, 1969.
Inspire Record 1098439 DOI 10.17182/hepdata.37462

None

1 data table

No description provided.


Pion production with polarized photons and test of vector dominance model

Geweniger, Chr. ; Heide, P. ; Kötz, U. ; et al.
Phys.Lett.B 28 (1968) 155-156, 1968.
Inspire Record 1392676 DOI 10.17182/hepdata.29098

Cross section asymmetries for the sum of single π + and π - production with polarized photons of 3.4 GeV have been measured. The results disagree with calculations based on the vector dominance model using experimental data of vector meson production in π beams.

1 data table

No description provided.


Beam asymmetry $\Sigma$ measurements on the $\pi^-$ photoproduction off neutrons

The Graal collaboration Mandaglio, G. ; Mammoliti, F. ; Manganaro, M. ; et al.
Phys.Rev.C 82 (2010) 045209, 2010.
Inspire Record 872319 DOI 10.17182/hepdata.63833

The $\Sigma$ beam asymmetry in the photoproduction of negative pions from quasi-free neutrons in a deuterium target was measured at Graal in the energy interval 700 - 1500 MeV and a wide angular range, using polarized and tagged photons. The results are compared with recent partial wave analyses.

11 data tables

The measured beam polarization asymmetry for photon energy 753 MeV.

The measured beam polarization asymmetry for photon energy 820 MeV.

The measured beam polarization asymmetry for photon energy 884 MeV.

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Cross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1-GeV to 5.5-GeV.

The Jefferson Lab Hall A & Jefferson Lab E94-104 collaborations Zhu, L.Y. ; Arrington, J. ; Averett, T. ; et al.
Phys.Rev.C 71 (2005) 044603, 2005.
Inspire Record 659852 DOI 10.17182/hepdata.31680

The differential cross section for the gamma +n --> pi- + p and the gamma + p --> pi+ n processes were measured at Jefferson Lab. The photon energies ranged from 1.1 to 5.5 GeV, corresponding to center-of-mass energies from 1.7 to 3.4 GeV. The pion center-of-mass angles varied from 50 degree to 110 degree. The pi- and pi+ photoproduction data both exhibit a global scaling behavior at high energies and high transverse momenta, consistent with the constituent counting rule prediction and the existing pi+ data. The data suggest possible substructure of the scaling behavior, which might be oscillations around the scaling value. The data show an enhancement in the scaled cross section at center-of-mass energy near 2.2 GeV. The differential cross section ratios at high energies and high transverse momenta can be described by calculations based on one-hard-gluon-exchange diagrams.

14 data tables

Differential cross section for the process GAMMA N --> PI- P for an incident electron energy of 5.614 GeV.

Differential cross section for the process GAMMA N --> PI- P for an incident electron energy of 4.236 GeV.

Differential cross section for the process GAMMA N --> PI- P for an incident electron energy of 3.400 GeV.

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Photoproduction of negative pions on neutrons at photon energies between 0.2-GeV and 2.0-GeV

The Aachen-Berlin-Bonn-Hamburg-Heidelberg-Muenchen collaboration Hilpert, H.G. ; Lauscher, P. ; Matziolis, M. ; et al.
Nucl.Phys.B 8 (1968) 535-544, 1968.
Inspire Record 56298 DOI 10.17182/hepdata.32389

Total and differenial cross sections of the reaction γ +n→p+ π − have been determined for photon-energies between 0.2 and 2.0 GGeV. Below 500 MeV the differential cross sections are compared with theoretical predictions derived from fixed-momentum-transfer dispersion relations.

30 data tables

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

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Photoeinfacherzeugung geladener $\pi$-Mesonen bei kleinen Impulsüberträgen im Energiebereich zwischen 2.6 und 6.0 GeV

Heide, Peter ;
DESY-F-35-69-01, 1969.
Inspire Record 917751 DOI 10.17182/hepdata.21701

None

6 data tables

No description provided.

No description provided.

No description provided.

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