Gaditskii, V.G.
POL
Max results
Sort by Reverse order

Showing 36 of 36 results

Spin density matrix elements in exclusive $\omega$ electroproduction on $^1$H and $^2$H targets at 27.5 GeV beam energy

The HERMES collaboration Airapetian, A. ; Akopov, N. ; Akopov, Z. ; et al.
Eur.Phys.J.C 74 (2014) 3110, 2014.
Inspire Record 1305286 DOI 10.17182/hepdata.70751

Exclusive electroproduction of $\omega$ mesons on unpolarized hydrogen and deuterium targets is studied in the kinematic region of Q$^2$>1.0 GeV$^2$, 3.0 GeV < W < 6.3 GeV, and -t'< 0.2 GeV$^2$. Results on the angular distribution of the $\omega$ meson, including its decay products, are presented. The data were accumulated with the HERMES forward spectrometer during the 1996-2007 running period using the 27.6 GeV longitudinally polarized electron or positron beam of HERA. The determination of the virtual-photon longitudinal-to-transverse cross-section ratio reveals that a considerable part of the cross section arises from transversely polarized photons. Spin density matrix elements are presented in projections of Q$^2$ or -t'. Violation of s-channel helicity conservation is observed for some of these elements. A sizable contribution from unnatural-parity-exchange amplitudes is found and the phase shift between those amplitudes that describe transverse $\omega$ production by longitudinal and transverse virtual photons, $\gamma^{*}_{L} \to \omega_{T}$ and $\gamma^{*}_{T} \to \omega_{T}$, is determined for the first time. A hierarchy of helicity amplitudes is established, which mainly means that the unnatural-parity-exchange amplitude describing the $\gamma^*_T \to \omega_T$ transition dominates over the two natural-parity-exchange amplitudes describing the $\gamma^*_L \to \omega_L$ and $\gamma^*_T \to \omega_T$ transitions, with the latter two being of similar magnitude. Good agreement is found between the HERMES proton data and results of a pQCD-inspired phenomenological model that includes pion-pole contributions, which are of unnatural parity.

9 data tables
Table 1

The 23 unpolarized and polarized $\omega$ SDMEs from the proton and deuteron data.

Table 2

The 23 unpolarized and polarized $\omega$ SDMEs for the proton data in $Q^2$ intervals: $1.00 - 1.57 - 2.55 - 10.00$ GeV$^2$.

Table 3

The 23 unpolarized and polarized $\omega$ SDMEs for the proton data in $-t'$ intervals: $0.000 - 0.044 - 0.105 - 0.200$ GeV$^2$.

More…

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
Table 1

No description provided.


Measurement of the polarization parameter P in elastic π+p scattering at 335, 370, and 410 MeV

Bekrenev, V.S. ; Beloglazov, Yu.A. ; Gaditskii, V.G. ; et al.
JETP Lett. 35 (1982) 148, 1982.
Inspire Record 1408359 DOI 10.17182/hepdata.70446

None

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Cross-section asymmetry in two-particle photodisintegration of helium-3 by linearly polarized protons

Belyaev, A.A. ; Ganenko, V.B. ; Get'man, V.A. ; et al.
Sov.J.Nucl.Phys. 44 (1986) 181-183, 1986.
Inspire Record 1392511 DOI 10.17182/hepdata.17441

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Asymmetry of the cross section of gamma d ---> pi0 d reaction at photon energy of 350 mev

Ganenko, V.B. ; Gorbenko, V.G. ; Zhebrovskii, Yu.V. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 18 (1973) 483-486, 1973.
Inspire Record 87826 DOI 10.17182/hepdata.39926

None

1 data table
Table 1

No description provided.


STUDY OF THE CROSS-SECTION ASYMMETRY OF THE REACTION GAMMA D ---> N P BY POLARIZED PHOTONS IN THE ENERGY INTERVAL 400-MEV - 600-MEV (IN RUSSIAN)

Gorbenko, V.G. ; Zhebrovsky, Yu.V. ; Kolesnikov, L.Ya. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 30 (1979) 130-132, 1979.
Inspire Record 146581 DOI 10.17182/hepdata.11198

None

1 data table
Table 1

No description provided.


Measurement of the tensor analyzing power for the C-12 (d, p) reaction at P(d) = 9.1-GeV/c and zero angle proton emission. (In Russian)

Ableev, V.G. ; Vizireva, L. ; Dzhemuchadze, S.V. ; et al.
Dubna JINR - 4(43)-90 (90,rec.Oct.) 5-9.C, 1990.
Inspire Record 304748 DOI 10.17182/hepdata.48496

None

1 data table
Table 1

Proton momentum in deuteron rest frame (ANTILAB).


Measurement of the Polarization Parameter p, Isospin and Phase Shift Analysis of pi+- p Elastic Scattering at 450-MeV Energy

Bekrenev, V.S. ; Gaditsky, V.G. ; Kruglov, S.P. ; et al.
Sov.J.Nucl.Phys. 24 (1976) 45, 1976.
Inspire Record 109855 DOI 10.17182/hepdata.18360

None

1 data table

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
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

ANGULAR DEPENDENCE OF THE POLARIZATION CORRELATION PARAMETER A(00NN) AND THE ASYMMETRY PARAMETER A(000N) IN ELASTIC PROTON PROTON SCATTERING AT 690-MEV - 950-MEV

Vovchenko, V.G. ; Efimovykh, V.A. ; Zhdanov, A.A. ; et al.
JETP Lett. 44 (1986) 151-154, 1986.
Inspire Record 240718 DOI 10.17182/hepdata.16827

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


PROTON POLARIZATION DUE TO A TWO PARTICLE SPLITTING OF A HE-3 NUCLEUS BY LINEARLY POLARIZED PHOTONS

Gorbenko, V.G. ; Zybalov, A.A. ; Karnaukhov, I.M. ; et al.
JETP Lett. 42 (1985) 428-430, 1985.
Inspire Record 231769 DOI 10.17182/hepdata.16882

None

1 data table
Table 1

No description provided.


MEASUREMENT OF THE POLARIZATION OF CUMULATIVE PROTONS IN gamma A ---> p X REACTION

Avakian, R.O. ; Avakian, E.O. ; Avetisian, A.E. ; et al.
Yad.Fiz. 42 (1985) 667-670, 1985.
Inspire Record 210380 DOI 10.17182/hepdata.17606

None

1 data table
Table 1

Axis error includes +- 7/7 contribution.


EXPERIMENTAL STUDY OF THE pi+ p ---> K+ SIGMA+ REACTION AT 12-GeV/c

The Dubna-Serpukhov-Baku-Bratislava-Gomel-Yerevan-Kiev-Kosice- Minsk-Samarkand-Tbilisi collaboration Bitsadze, G.S. ; Budagov, Yu.A. ; Vinogradov, V.B. ; et al.
Nucl.Phys.B 260 (1985) 497-509, 1985.
Inspire Record 207765 DOI 10.17182/hepdata.33721

The results of the study of the π + p→K + ∑ + (1) and π + p→K + ∑ + (1385) (2) reactions at 12 GeV/ c are presented. The differential cross sections d σ /d t in| t min |<| t |<0.8 (GeV/ c ) 2 momentum transfer range are measured. The ∑ + polarisation for | t |<0.5 (GeV/ c ) 2 for reaction (1) is defined. Binary reactions (1) and (2) were selected by analyzing the missing mass spectra for the forward emitted fast K + meson. The total cross sections in the studied momentum transfer range are 20.2±2.4 μ b and 7.3±1.1 μ b for the reactions (1) and (2) respectively. The experimental results are compared with the predictions of the Regge models which take into account rescattering and secondary singularities.

4 data tables
Table 1

SYSTEMATIC ERRORS INCLUDED.

Table 2

No description provided.

Table 3

No description provided.

More…

ASYMMETRY OF CROSS-SECTIONS FOR THE REACTION GAMMA HE-3 ---> P D WITH LINEARLY POLARIZED GAMMA RAYS

Belyaev, A.A. ; Getman, V.A. ; Gorbenko, V.G. ; et al.
JETP Lett. 40 (1984) 1275-1277, 1984.
Inspire Record 220217 DOI 10.17182/hepdata.16924

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


CROSS-SECTION ASYMMETRY OF THE gamma n ---> pi- p REACTION BY POLARIZED PHOTONS IN THE THIRD AND FOURTH RESONANCE REGIONS

Adamian, F.V. ; Akopian, G.G. ; Galumian, P.I. ; et al.
EFI-722-37-84-YEREVAN, 1984.
Inspire Record 206944 DOI 10.17182/hepdata.18433

None

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

ASYMMETRY OF THE CROSS-SECTION FOR THE REACTION GAMMA D ---> PI0 D WITH LINEARLY POLARIZED GAMMA RAYS AT 500-MEV - 700-MEV AND AT A C.M. ANGLE THETA* (PI0) = 130-DEGREES

Adamian, F.V. ; Akopian, G.G. ; Vartapetian, G.A. ; et al.
JETP Lett. 39 (1984) 710-713, 1984.
Inspire Record 187231 DOI 10.17182/hepdata.16896

None

1 data table
Table 1

No description provided.



EXPERIMENTAL STUDIES OF THE SIGMA, T, P POLARIZATION PARAMETERS AND THE GAMMA P ---> P PI0 REACTION MULTIPOLE ANALYSIS IN THE FIRST RESONANCE REGION

Belyaev, A.a. ; Getman, V.a. ; Gorbenko, V.g. ; et al.
Nucl.Phys.B 213 (1983) 201-222, 1983.
Inspire Record 192457 DOI 10.17182/hepdata.34021

A description is given of the experimental techniques and investigation results of the parameters Σ , T , P for the γ p→p π 0 reaction using linear polarized photons and a polarized proton target. The measurements have been made in the photon energy range 280–450 MeV at pion c.m. angles between 60° and 135°. The new experimental data are used in an energy-independent channel multipole analysis without the Watson theorem.

8 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

POLARIZATION OF RECOIL PROTONS FROM THE REACTION GAMMA P ---> PI0 P IN THE PHOTON ENERGY RANGE 450-MEV - 800-MEV

Bratashevsky, A.S. ; Gorbenko, V.G. ; Derebchinsky, A.I. ; et al.
Nucl.Phys.B 166 (1980) 525-533, 1980.
Inspire Record 157933 DOI 10.17182/hepdata.34552

Measurement of secondary-proton polarization from the reaction γ p → π 0 p have been performed in the proton energy range 500–800 MeV at c.m. pion emission angles 100°, 120°, 140°. The experiment was carried out using an optical spark chamber telescope at the output of the magnetic spectrometer. The obtained experimental data are included in a Walker-type analysis in order to verify the parameters of the resonances P 11 (1470), D 13 (1570) and S 11 (1535). Proton polarization in the reaction γ p → π 0 p was measured for a photon energy of 450 MeV at a c.m. pion emission angle of 105° using photons linearly polarized at 45° to the reaction plane. A liquid hydrogen target in the field of a superconducting magnet was used for the separation of the P x ′ and P z ′ components of the secondary-proton polarization vector.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

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
Table 1

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


INVESTIGATION OF THE REACTION GAMMA P ---> DELTA++ PI- ON POLARIZED PROTONS. (IN RUSSIAN)

Belyaev, A.A. ; Getman, V.A. ; Gorbenko, V.G. ; et al.
Yad.Fiz. 35 (1982) 373-375, 1982.
Inspire Record 179828 DOI 10.17182/hepdata.17756

None

1 data table
Table 1

No description provided.


POLARIZATION PARAMETERS SIGMA, T, P FOR THE REACTION GAMMA P ---> P PI0 NEAR THE FIRST RESONANCE. (IN RUSSIAN)

Belyaev, A.A. ; Getman, V.A. ; Gorbenko, V.G. ; et al.
Yad.Fiz. 35 (1982) 693-699, 1982.
Inspire Record 179827 DOI 10.17182/hepdata.18756

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Investigation of the Energy Dependence of the Spin Spin Correlation in the Diproton Resonance Region

Borisov, N.S. ; Vovchenko, V.G. ; Efimovykh, V.A. ; et al.
Sov.Phys.JETP 54 (1981) 841-847, 1981.
Inspire Record 173719 DOI 10.17182/hepdata.16987

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


MEASUREMENT OF POLARIZATION PARAMETER P IN ELASTIC PI+ P SCATTERING IN THE ENERGY RANGE 500-MEV - 600-MEV. (IN RUSSIAN)

Bekrenev, V.S. ; Beloglazov, YU.A. ; Gaditsky, V.G. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 34 (1981) 152-155, 1981.
Inspire Record 171694 DOI 10.17182/hepdata.16953

None

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

MEASUREMENT OF THE R PARAMETER IN P P SCATTERING AT 0.97-GEV AND ANALYSIS OF EXPERIMENTAL RESULTS ON TRIPLE SCATTERING. (IN RUSSIAN)

Vovchenko, V.G. ; Efimovykh, V.A. ; Zhdanov, A.A. ; et al.
Yad.Fiz. 33 (1981) 1551-1561, 1981.
Inspire Record 170187 DOI 10.17182/hepdata.18804

None

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Polarization in Charge Exchange Reaction $\pi^- p \to \pi^0 n$ in Small Momentum Transfer Range at 40-{GeV}/$c$

Apokin, V.D. ; Avvakumov, I.A. ; Bagaturiya, Yu.Sh. ; et al.
Experientia Suppl. 38 (1981) 554, 1981.
Inspire Record 154047 DOI 10.17182/hepdata.11048

None

2 data tables
Table 1

AVERAGE TARGET POLARIZATION WAS 76 +- 3 PCT.

Table 2

No description provided.


ASYMMETRY OF REACTION CROSS-SECTION OF DEUTERON DISINTEGRATION BY POLARIZED PHOTONS WITH 80-MEV - 600-MEV ENERGY. (IN RUSSIAN)

Gorbenko, V.G. ; Zhebrovsky, Yu.V. ; Kolesnikov, L.Ya. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 32 (1980) 387-389, 1980.
Inspire Record 159210 DOI 10.17182/hepdata.39695

None

2 data tables
Table 1

LINEARLY POLARIZED PHOTON BEAM. TABLE CONTAINES DATA FOR 400 <= E(GAMMA) <= 600 MEV FROM ZETFP 30, 130 1979.

Table 2

No description provided.


MEASUREMENT OF THE POLARIZATION ROTATION COEFFICIENT A IN THE P P SCATTERING AT 970-MEV. (IN RUSSIAN)

Vovchenko, V.G. ; Gorodnitsky, G.A. ; Zhdanov, A.A. ; et al.
Yad.Fiz. 32 (1980) 164-173, 1980.
Inspire Record 159796 DOI 10.17182/hepdata.18824

None

4 data tables
Table 1

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

Table 2

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

Table 3

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

More…

PHOTOPRODUCTION OF PI- MESONS ON NEUTRONS INDUCED BY POLARIZED PHOTONS IN THE ENERGY INTERVAL 0.9-GEV - 1.65-GEV. (IN RUSSIAN)

Abramian, L.O. ; Aganyants, Aleksandr O. ; Adamian, F.V. ; et al.
Yad.Fiz. 32 (1980) 133-140, 1980.
Inspire Record 159786 DOI 10.17182/hepdata.18933

None

6 data tables
Table 1

Axis error includes +- 10./10. contribution (DUE TO BEAM POLARIZATION UNCERTAINTY).

Table 2

D(SIG)/D(OMEGA)=(D(SIG(O))/D(OMEGA)+D(SIG(C))/D(OMEGA))/2, WHERE (O) AND (C) DENOTES GAMMA POLARIZATION ORTHOGONAL AND COPLANAR TO THE REACTION PLANE.

Table 3

Axis error includes +- 10./10. contribution (DUE TO BEAM POLARIZATION UNCERTAINTY).

More…

STUDY OF PHOTOPRODUCTION OF POSITIVE PIONS ON POLARIZED PROTONS IN THE REGION OF THE FIRST RESONANCE. (IN RUSSIAN)

Getman, V.A. ; Gorbenko, V.G. ; Derkach, A.Ya. ; et al.
Yad.Fiz. 31 (1980) 930-936, 1980.
Inspire Record 157617 DOI 10.17182/hepdata.18976

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


MEASUREMENT OF POLARIZATION PARAMETER P IN ELASTIC PI- P SCATTERING FOR ENERGIES OF 490-MeV AND 600-MeV. (IN RUSSIAN)

Bekrenev, V.S. ; Gaditsky, V.G. ; Kovalev, A.I. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 31 (1980) 197-201, 1980.
Inspire Record 157168 DOI 10.17182/hepdata.16995

None

1 data table
Table 1

No description provided.


Measurement of Asymmetry of Photoproduction of Positive Pions on Protons by Linearly Polarized Photons in 250-MeV-500-MeV Energy Range

Ganenko, V.B. ; Gorbenko, V.G. ; Derkach, L.M. ; et al.
Yad.Fiz. 23 (1976) 100-106, 1976.
Inspire Record 113097 DOI 10.17182/hepdata.19093

None

12 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Angular distributions of the asymmetry of the gamma p ---> p pi0 reaction with the gamma-quanta energies of 400, 450, 500, 550, 650 mev

Ganenko, V.B. ; Gorbenko, V.G. ; Zhebrovskii, Yu.V. ; et al.
Yad.Fiz. 20 (1974) 356-358, 1974.
Inspire Record 95035 DOI 10.17182/hepdata.19140

None

11 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Single Photoproduction of Negative Pions from Neutrons by Linearly Polarized Photons in the Region of the First Pion-Nucleon Resonance

Ganenko, V.B. ; Gorbenko, V.G. ; Zhebrovsky, Yu.V. ; et al.
Sov.J.Nucl.Phys. 23 (1976) 511-515, 1976.
Inspire Record 116406 DOI 10.17182/hepdata.39784

None

6 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////).

More…

ASYMMETRY MEASUREMENTS IN PION PHOTOPRODUCTION BY POLARIZED PHOTONS IN THE ENERGY RANGE FROM 250-MeV TO 600-MeV

Antufev, Yu.P. ; Agranovich, V.L. ; Ganenko, V.B. ; et al.
PRINT-70-2307, 1970.
Inspire Record 1105361 DOI 10.17182/hepdata.75432

None

1 data table
Table 1

No description provided.


PROTON POLARIZATION IN THE PHOTODISINTEGRATION OF THE DEUTERON BY LINEARLY POLARIZED 400-MEV AND 500-MeV GAMMA RAYS

Bratashevsky, A.S. ; Gorbenko, V.G. ; Gushchin, V.A. ; et al.
JETP Lett. 35 (1982) 605-607, 1982.
Inspire Record 184506 DOI 10.17182/hepdata.16942

None

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.