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Measurements of the Polarization of Protons from Deuteron Photodisintegration

Liu, F.F. ; Lundquist, D.E. ; Wiik, B.H. ;
Phys.Rev. 165 (1968) 1478-1482, 1968.
Inspire Record 944944 DOI 10.17182/hepdata.26514

The polarization of the proton produced by the photodisintegration of the deuteron has been measured at several angles for photon energies between 170 and 450 MeV. The polarization is found to be around -0.20 (Basel convention) for 90° c.m. and photon energies between 200 and 300 MeV. This is in reasonable agreement with a calculation by D. George based upon the Austern model. However, the calculation fails to explain the strong increase in polarization with increasing photon energies. At a photon energy of 450 MeV and 90° c.m. the proton polarization is as large as -0.60.

1 data table match query
Table 1

No description provided.


Measurement of the Proton Polarization in Deuteron Photodisintegration at Photon Energies Between 350-MeV and 700-MeV

Kamae, T. ; Arai, I. ; Fujii, T. ; et al.
Nucl.Phys.B 139 (1978) 394-412, 1978.
Inspire Record 135594 DOI 10.17182/hepdata.35048

The proton polarization in the γ d → pn reaction has been measured at a c.m. angle of 90° and photon energies between 350 and 700 MeV, using a carbon polarimeter. The magnitude of the polarization shows a sharp energy dependence with a peak of about −80% at around 500–550 MeV. This feature cannot be explained by conventional models and seems to indicate a new mechanism in the dibaryon system.

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Table 1

AROUND THETA OF 90 DEG.


TARGET ASYMMETRY MEASUREMENT OF DEUTERON PHOTODISINTEGRATION AT A PHOTON ENERGY OF 550-MEV

Althoff, K.H. ; Anton, G. ; Bock, B. ; et al.
Z.Phys.C 26 (1984) 175-179, 1984.
Inspire Record 214987 DOI 10.17182/hepdata.16199

The target asymmetry of the deuteron photodisintegration was measured at a photon energy of 550±50 MeV and at proton center-off-mass angles between 25 and 155 degrees.D-butanol andND3 were used as target material yielding a maximum deuteron polarization of 41%. Proton and neutron were detected in coincidence. The data show a structure which cannot be described by the existing analyses.

1 data table match query
Table 1

Axis error includes +- 8/8 contribution (UNCERTAINTY IN THE DETERMINATION OF THE TARGET POLARIZATION//OTHER SYSTEMATIC ERRORS ARE FROM COMPETING PROCESSES (<2 PCT) AND OTHERS (<1 PCT)).


Angular Dependence of Proton Polarization in $\gamma d \to pn$ and Further Investigation of the Dibaryon Resonance

Ikeda, H. ; Arai, I. ; Fujii, H. ; et al.
UTPN-115, 1978.
Inspire Record 131379 DOI 10.17182/hepdata.20801

None

1 data table match query
Table 1

ERRORS INCLUDE BY QUADRATIC ADDITION THE 5 PCT UNCERTAINTY IN THE CARBON ANALYSING POWER.


Observation of an Anomalous Structure in Proton Polarization from Deuteron Photodisintegration

Kamae, T. ; Arai, I. ; Fujii, T. ; et al.
Phys.Rev.Lett. 38 (1977) 468, 1977.
Inspire Record 110084 DOI 10.17182/hepdata.21021

Proton polarization in γd→pn has been measured at c.m. angle around 90° and photon energies from 325 to 725 MeV. The polarization increases sharply with the photon energy, reaching a high maximum of (-80±8)% around 500-550 MeV. Such a high polarization with a sharp energy dependence seems to indicate a new effect in the dibaryon system.

1 data table match query
Table 1

No description provided.


POLARIZATION OF PROTONS IN REACTION PHOTON D ---> N P IN THE PHOTON ENERGY INTERVAL 400-MEV - 700-MEV. (IN RUSSIAN)

Bratashevsky, A.S. ; Derebchinsky, A.I. ; Zybalov, A.A. ; et al.
Yad.Fiz. 32 (1980) 418-422, 1980.
Inspire Record 159791 DOI 10.17182/hepdata.18975

None

4 data tables match query
Table 1

No description provided.

Table 2

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Table 3

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Study on the cross section asymmetry of deuteron photodisintegration induced by low energy polarized γ quanta

Barannik, V.P. ; Gorbenko, V.G. ; Gushchin, V.A. ; et al.
Yad.Fiz. 38 (1983) 1108-1100, 1983.
Inspire Record 1408810 DOI 10.17182/hepdata.17732

Results are presented on measured asymmetry parameter in the cross sections of the deuteron photodesintegration by linearly polarized photon beam in the energy range 40-70 MeV for the proton emission angles of 75 and 90 deg in the c. m. s. The experimental data are compared with the theoretical calculations by Partovi, Arenhovel, as well as with calculations performed within an invariant approach with gauge-invariant amplitudes in the pole approximation. The results of the calculation by Arenhovel and the present calculations satisfactorily agree with the experimental data, while the Partovi theory does not describe the asymmetry parameter measurements for photon energies above 40 MeV

1 data table match query
Table 1

No description provided.


ASYMMETRY OF THE REACTION gamma d ---> p n CROSS-SECTION WITH POLARIZED PHOTONS IN THE ENERGY REGION E (gamma) = 0.4-GeV - 0.7-GeV

Adamian, F.V. ; Arustamian, G.V. ; Galumian, P.I. ; et al.
EFI-505-48-81-YEREVAN, 1981.
Inspire Record 171117 DOI 10.17182/hepdata.18464

None

1 data table match query
Table 1

Axis error includes +- 10/10 contribution (ERROR IN VALUE OF PHOTON'S POLARIZATION).


POLARIZATION OF PROTONS IN REACTION GAMMA D ---> P N AT E (GAMMA) = 0.7-GEV - 1-GEV FOR THETA (P) = 90-DEGREES C.M. (IN RUSSIAN)

Bratashevsky, A.S. ; Zybalov, A.A. ; Karasev, S.P. ; et al.
Yad.Fiz. 44 (1986) 960-964, 1986.
Inspire Record 239280 DOI 10.17182/hepdata.17436

None

1 data table match query
Table 1

No description provided.


INVESTIGATION OF POLARIZATION PARAMETERS IN DEUTERON PHOTOFISSION INDUCED BY LINEARLY POLARIZED PHOTONS. (IN RUSSIAN)

Bratashevsky, A.S. ; Gorbenko, V.G. ; Gushchin, V.A. ; et al.
Yad.Fiz. 43 (1986) 785-790, 1986.
Inspire Record 238205 DOI 10.17182/hepdata.17613

None

4 data tables match query
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No description provided.

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