Vovchenko%2C V.G
Phenomenology-HEP
Max results
Sort by Reverse order

Showing 10 of 14 results

Transverse-target-spin asymmetry in exclusive $\omega$-meson electroproduction

The HERMES collaboration Airapetian, A. ; Akopov, N. ; Akopov, Z. ; et al.
Eur.Phys.J.C 75 (2015) 600, 2015.
Inspire Record 1391139 DOI 10.17182/hepdata.75465

Hard exclusive electroproduction of $\omega$ mesons is studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off a transversely polarized hydrogen target. The amplitudes of five azimuthal modulations of the single-spin asymmetry of the cross section with respect to the transverse proton polarization are measured. They are determined in the entire kinematic region as well as for two bins in photon virtuality and momentum transfer to the nucleon. Also, a separation of asymmetry amplitudes into longitudinal and transverse components is done. These results are compared to a phenomenological model that includes the pion pole contribution. Within this model, the data favor a positive $\pi\omega$ transition form factor.

4 data tables match query
Table 1

The amplitudes of the five sine and two cosine modulations as determined in the entire kinematic region. The results receive an additional 8.2% scale uncertainty corresponding to the target-polarization uncertainty.

Table 2

The definition of intervals and the mean values of the kinematic variables.

Table 3

Results on the kinematic dependences of the five asymmetry amplitudes $A_{UT}$ and two amplitudes $A_{UU}$. The first two columns correspond to the $-t'$ intervals $0.00 - 0.07 - 0.20$ GeV$^2$ and the last two columns to the $Q^{2}$ intervals $1.00 - 1.85 - 10.00$ GeV$^2$. The results receive an additional 8.2% scale uncertainty corresponding to the target-polarization uncertainty.

More…

FRAGMENTATION OF QUARKS AND DIQUARKS IN pi- p INTERACTIONS AT P = 40-GeV/c

Grishin, V.G. ; Didenko, L.A. ; Metreveli, Z.V. ;
IN *TBILISI 1984, PROCEEDINGS, QUARKS 84, VOL. 2* 281-291 AND DUBNA JINR - 83-823 (83,REC.FEB.84) 12p, 1983.
Inspire Record 196648 DOI 10.17182/hepdata.39065

None

12 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

ANALYSIS OF pi- p INTERACTIONS AT 40-GeV/c BY MEANS OF COLLECTIVE VARIABLES AND METHODICAL PROBLEMS OF DISCRIMINATING HADRON JETS

Grishin, V.G. ; Didenko, L.A. ; Kanarek, T.I. ; et al.
Sov.J.Nucl.Phys. 37 (1983) 545, 1983.
Inspire Record 179183 DOI 10.17182/hepdata.9735

None

12 data tables match query
Table 1

No description provided.

Table 2

DATA FOR NON-DIFFRACTIVE EVENTS.

Table 3

No description provided.

More…

Space-time Characteristics of Radiation Region of Secondary Negative Pions, Produced in $\pi^- p$ Interactions at 40-{GeV}/$c$

Angelov, N. ; Akhababian, N. ; Grishin, V.G. ; et al.
Yad.Fiz. 35 (1982) 76, 1982.
Inspire Record 166105 DOI 10.17182/hepdata.39205

None

1 data table match query
Table 1

No description provided.


ANALYSIS OF HADRON JET BEHAVIOR IN pi- C INTERACTIONS AT 40-GeV/c

Grishin, V.G. ; Didenko, L.A. ; Eliseev, S.M. ; et al.
Sov.J.Nucl.Phys. 38 (1983) 410, 1983.
Inspire Record 179980 DOI 10.17182/hepdata.9639

None

2 data tables match query
Table 1

FOR Q(P=3 4)=ALL,1,2,3,4 MASSES OF NUCLEON, 2NUCLEONS, 3NUCLENOS AN SO ON WERE USED TO CALCULATE C.M. ANGLE.

Table 2

No description provided.


Azimuthal Correlations of ($\pi^+ \pi^-$) Pairs in Pion - Nucleus and Pion - Nucleon Interactions at $p$ = 40-{GeV}/$c$

Grishin, V.G. ; Jenik, L. ; Kanarek, T. ;
JINR-P1-80-348, 1980.
Inspire Record 154325 DOI 10.17182/hepdata.17811

None

9 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

SOURCES OF LEADING PIONS IN pi+ p AND pi- p INTERACTIONS AT 16-GeV/c AND 40-GeV/c

Becker, L. ; Grishin, V.G. ; Kvatadze, R.A. ;
Sov.J.Nucl.Phys. 35 (1982) 543, 1982.
Inspire Record 166978 DOI 10.17182/hepdata.39232

None

10 data tables match query
Table 1

P=4 IS 'LEADING'.

Table 2

P=5 IS 'LEADING'.

Table 3

P=5 IS 'LEADING'.

More…

COMPARISON OF THE JET BEHAVIOR OF HADRONS IN pi- p INTERACTIONS AT 40-GeV/c WITH HADRON PRODUCTION IN e+ e- ANNIHILATION

Grishin, V.G. ; Didenko, L.A. ; Kanarek, T. ;
JINR-P1-81-542, 1981.
Inspire Record 168221 DOI 10.17182/hepdata.39140

None

8 data tables match query
Table 1

No description provided.

Table 2

NON DIFFRACTION EVENTS.

Table 3

No description provided.

More…

Azimuthal Correlations of Identical Pions in Pion - Nucleus and Pion - Nucleon Interactions at $p=40$-{GeV}/$c$

Grishin, V.G. ; Jenik, L. ; Kanarek, T. ;
Sov.J.Nucl.Phys. 34 (1981) 223, 1981.
Inspire Record 156944 DOI 10.17182/hepdata.39234

None

12 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Multi - Pion System Production in Pion - Nucleon Collisions at $p$ = 40-{GeV}/c

Angelov, N.S. ; Grishin, V.G. ; Kvatadze, R.A. ;
Yad.Fiz. 32 (1980) 1342-1350, 1980.
Inspire Record 153217 DOI 10.17182/hepdata.17933

None

9 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…