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ELECTROPRODUCTION OF ETA MESONS IN THE REGION OF THE RESONANCE S11 (1535) AT MOMENTUM TRANSFERS OF 2-GEV**2 AND 3-GEV**2

Brasse, F.W. ; Flauger, W. ; Gayler, Joerg ; et al.
Z.Phys.C 22 (1984) 33-38, 1984.
Inspire Record 203579 DOI 10.17182/hepdata.16229

We report on results of η-electroproduction in the resonance region at momentum transfers ofQ2=2 GeV2 and 3 GeV2. The differential cross sections obtained in the region of the second nucleon resonance strongly support the dominance of theS11(1535) in this channel. The total transverse virtual photoproduction cross section of theS11(1535) shows a flatQ2-dependence ∼e−0.39·Q2. Comparison with the total resonant γvp cross section in the second resonance region aroundW=1.5 GeV shows that theD13(1520) production decreases much faster (∼e−1.6·Q2). The data are not compatible with the simple harmonic oscillator quark model with spin and orbit excitation of a quark only.

23 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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CROSS-SECTION FOR THE INVERSE BETA DECAY OF THE PROTON FROM NUCLEAR REACTOR MEASUREMENTS

Afonin, A.I. ; Bogatov, S.A. ; Borovoi, A.A. ; et al.
JETP Lett. 38 (1983) 436-438, 1983.
Inspire Record 205424 DOI 10.17182/hepdata.16912

None

1 data table
Table 1

Axis error includes +- 9./9. contribution.


ON THE POSSIBILITY TO STUDY ELECTROMAGNETIC PROPERTIES OF NEUTRAL PIONS IN THE EXPERIMENTS WITH ELECTRON - POSITRON COLLIDING BEAMS

Belkov, A.A. ; Kuraev, E.A. ; Pervushin, V.N. ;
Yad.Fiz. 40 (1984) 1483-1494, 1984.
Inspire Record 200136 DOI 10.17182/hepdata.17646

None

1 data table
Table 1

No description provided.


TOPOLOGICAL CROSS-SECTIONS OF HE-3 P INTERACTION AND THE ELASTIC HE-3 P SCATTERING AT THE MOMENTUM OF 5-GEV/C. (IN RUSSIAN)

Blinov, A.V. ; Vanyushin, I.A. ; Grechko, V.E. ; et al.
Yad.Fiz. 39 (1984) 260-263, 1984.
Inspire Record 206497 DOI 10.17182/hepdata.17669

None

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


DETERMINATION OF CROSS-SECTIONS OF STRANGE PARTICLE PRODUCTION CHANNELS IN ANTI-P P INTERACTIONS AT 32-GeV/c. (IN RUSSIAN)

Bogolyubsky, M.Yu. ; Boos, E.G. ; Borovikov, A.A. ; et al.
Yad.Fiz. 39 (1984) 1436-1447, 1984.
Inspire Record 209441 DOI 10.17182/hepdata.17683

None

1 data table
Table 1

No description provided.


rivet Analysis
STUDY OF THE REACTION E+ E- ---> PI+ PI- IN THE ENERGY RANGE FROM 640-MEV - 1400-MEV

Kurdadze, L.M. ; Lelchuk, M.Yu. ; Pakhtusova, E.V. ; et al.
Sov.J.Nucl.Phys. 40 (1984) 286-295, 1984.
Inspire Record 208231 DOI 10.17182/hepdata.17648
1 data table
Table 1

Axis error includes +- 0.0/0.0 contribution (?////NOT GIVEN).


SEARCH FOR CHARMED F MESONS IN e+ e- COLLISIONS WITH THE CRYSTAL BALL

Horisberger, R. ;
SLAC-0266, 1984.
Inspire Record 199267 DOI 10.17182/hepdata.18798

None

8 data tables
Table 1

SEARCH FOR F MESON IN THE INCLUSIVE ETA SPECTRUM.

Table 2

UPPER LIMIT (95 PCT CL) OF F PRODUCTION FROM THE INCLUSIVE GAMMA SPECTRUM. MASS OF F MESON TAKEN AS 2030 MEV.

Table 3

UPPER LIMIT (95 PCT CL) OF F PRODUCTION FROM THE INCLUSIVE GAMMA SPECTRUM. MASS OF F MESON TAKEN AS 2030 MEV.

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MEASUREMENT OF THE ANTI-P P ---> ANTI-N N DIFFERENTIAL CROSS-SECTIONS AT LOW MOMENTA AND CONFIRMATION OF THE FORWARD DIP

Nakamura, K. ; Fujii, T. ; Kageyama, T. ; et al.
Phys.Rev.Lett. 53 (1984) 885-888, 1984.
Inspire Record 207326 DOI 10.17182/hepdata.20405

The differential cross sections of the reaction p―p→n―n were measured at 390, 490, 590, 690, and 780 MeV/c. The existence of the theoretically predicted forward dip is confirmed. The results are compared with the predictions of various N―N potential models.

6 data tables
Table 1

NUMERICAL VALUES SUPPLIED BY F. SAI.

Table 2

NUMERICAL VALUES SUPPLIED BY F. SAI.

Table 3

NUMERICAL VALUES SUPPLIED BY F. SAI.

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rivet Analysis
Measurement of r and Search for the Top Quark in e+ e- Annihilation Between 39.8-GeV and 45.2-GeV

The TASSO collaboration Althoff, M. ; Braunschweig, W. ; Kirschfink, F.J. ; et al.
Phys.Lett.B 138 (1984) 441-448, 1984.
Inspire Record 199468 DOI 10.17182/hepdata.6655

e + e − annihilation into hadrons was studied at CM energies between 39.8 and 45.2 GeV and a search was made for new heavy quarks. No evidence was found for the existence of a narrow state excluding the possible existence of the lowest vector toponium state in this mass range. A search for continuum production of heavy quarks led to lower mass limits for new quarks of 22.0 GeV ( e Q = 2 3 ) and 21.0 GeV ( e Q = 1 3 ). Quarks are found to be pointlike, the corresponding mass parameter being larger than 288 GeV. A fit of the QCD and the electroweak contributions to R = σ tot / σ μμ yielded sin 2 θ W = 0.30 −0.07 +0.23 .

3 data tables
Table 1

STATISTICAL ERRORS ONLY. NUMERICAL VALUES OF DATA TAKEN FROM PREPRINT.

Table 2

No description provided.

Table 3

No description provided.


ANTI-NEUTRINOS QUASIELASTIC SCATTERING IN NEON AND TOTAL CROSS-SECTIONS IN THE ENERGY INTERVAL 10-GEV - 50-GEV

Asratian, A.E. ; Gorichev, P.A. ; Efremenko, V.I. ; et al.
Yad.Fiz. 39 (1984) 619-625, 1984.
Inspire Record 206651 DOI 10.17182/hepdata.10181

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.