Photoproduction of single eta-mesons on nuclei at e(gamma)=2 gev

Abramyan, L.O. ; Aganyants, Aleksandr O. ; Adamyan, F.V. ; et al.
Yad.Fiz. 18 (1973) 817-824, 1973.
Inspire Record 84598 DOI 10.17182/hepdata.18382

None

1 data table

No description provided.


Photoproduction of single pi+- mesons on nuclei at e(gamma)=2 and 3 gev. parameters of proton-neutron distribution in nuclei

Abramyan, S.R. ; Aganyants, Aleksandr O. ; Adamyan, F.V. ; et al.
Yad.Fiz. 16 (1972) 739-747, 1972.
Inspire Record 85228 DOI 10.17182/hepdata.18402

None

2 data tables

No description provided.

No description provided.


Pi0 and pi+ Production with Polarized Photons in the Energy Range 1-GeV - 2-GeV

Abrahamian, L.O. ; Avakian, R.O. ; Aganyants, Aleksandr O. ; et al.
Phys.Lett.B 48 (1974) 463-466, 1974.
Inspire Record 90760 DOI 10.17182/hepdata.43798

The asymmetry of π o and π + photoproduction from hydrogen has been measured. The π o -mesons were detected at 130° cms with E γ ranged from 0.9 to 1.65 GeV, and the π + -mesons at 40° cms with E γ ranged from 0.9 to 1.2 GeV. The results agree with model predictions of single pion photoproduction in the resonance region using fixed- t dispersion relations.

7 data tables

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

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

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

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Negative Pion Production in Proton Proton Interactions at 69-GeV/c

The French-Soviet collaboration Bumazhnov, V.A. ; Ermolov, P.F. ; Fenyuk, A.S. ; et al.
Phys.Lett.B 50 (1974) 283-286, 1974.
Inspire Record 89197 DOI 10.17182/hepdata.27949

Inclusive spectra of π − production for pp interactions are discussed at 69 GeV/ c both in the central and in the fragmentation region and are compared to data at lower and higher energies. The p T dependence of the invariant structure function is also analysed.

2 data tables

No description provided.

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Quasi Two Particle Reactions in Proton Proton Interactions at 19.1-GeV/c Momentum

Takibaev, Zh.S. ; Boos, E.G. ; Sanko, L.A. ; et al.
Yad.Fiz. 21 (1975) 1015-1021, 1975.
Inspire Record 103077 DOI 10.17182/hepdata.19095

None

2 data tables

No description provided.

No description provided.


Pi0 and pi+ Production with Polarized Photons in the Resonance Region

Abrahamian, L.O. ; Avakian, R.O. ; Aganyants, Aleksandr O. ; et al.
EFI-136-75-YEREVAN, 1975.
Inspire Record 100164 DOI 10.17182/hepdata.43767

None

2 data tables

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

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


Inclusive and Semiinclusive Two Pion Correlations in p p Collisions at 69-GeV/c

The French-Soviet collaboration Derre, J. ; Jabiol, M.A. ; Otwinowski, S. ; et al.
Nuovo Cim.A 33 (1976) 721, 1976.
Inspire Record 99995 DOI 10.17182/hepdata.8917

Correlations between pions produced in pp collisions at 69 GeV/c are observed both for π−π+ and π−π−. Short-range correlations in rapidity are present fory1⋍y2 in both cases; an enhancement is seen aroundy1=y2=±1. Correlations between transverse variables are linked to those in rapidity for π−π− combinations, whereas the effect is essentially kinematical for π+π−.

44 data tables

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Search for Parity Nonconservation in Atomic Bismuth

Soreide, D.C. ; Roberts, D.E. ; Lindahl, E.G. ; et al.
Phys.Rev.Lett. 36 (1976) 352-355, 1976.
Inspire Record 112866 DOI 10.17182/hepdata.21089

In a search for optical rotation near the 8755-Å magnetic-dipole absorption line in atomic Bi, our first results set an upper limit F<10−6 on a parity nonconserving amplitude associated with the line. This limit improves upon earlier parity tests in atoms by three orders of magnitude. Further improvement of at least another order of magnitude appears possible by this method which should then provide an exacting test of parity conservation in the neutral weak-current interaction in atoms.

1 data table

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Single Particle Inclusive Spectra of Charged Particles in anti-p p Interactions at 22.4-GeV/c

The Alma Ata-Dubna-Helsinki-Kosice-Moscow-Prague collaboration Boos, E.G. ; Samoilov, V.V. ; Takibaev, Zh.S. ; et al.
Nucl.Phys.B 121 (1977) 381-392, 1977.
Inspire Record 109633 DOI 10.17182/hepdata.35465

The inclusive spectra for p p collisions at 22.4 GeV/ c are investigated. We show that the transverse momentum distributions resemble those in high-energy pp interactions and discuss the influence of annihilation processes on the p T 2 distributions. The invariant inclusive cross section for pions in the central region is found to be 28 ± 1 mb. A charge asymmetry is indicated by the y ∗ spectrum in the central region, the asymmetry parameter having the value 0.15 ± 0.01. Finally, we estimate the upper limit of the diffraction dissociation of the beam particle to be 3.68 −0.15 +0.45 mb.

10 data tables

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Upper limit on parity nonconserving optical rotation in atomic bismuth

Lewis, L.L. ; Hollister, J.H. ; Soreide, D.C. ; et al.
Phys.Rev.Lett. 39 (1977) 795-798, 1977.
Inspire Record 128258 DOI 10.17182/hepdata.20948

We have searched for optical rotation near the 8757-Å magnetic-dipole absorption line in atomic bismuth vapor. The experiment is sensitive to parity nonconservation in the weak neutral-current interaction between electrons and nucleons in atoms. We find R≡Im(E1M1)=(−0.7±3.2)×10−8, which is considerably smaller than the value R=−2.5×10−7 obtained by central-field calculations for this bismuth line using the Weinberg-Salam theory of neutral currents.

1 data table

No description provided.