Date

Pi- p Elastic Scattering at 3.92-GeV/c

Alitti, J. ; Bouchez, J. ; Devenski, P. ; et al.
Nuovo Cim.A 33 (1976) 160, 1976.
Inspire Record 100941 DOI 10.17182/hepdata.37676

π−p elastic scattering is studied at an incident π− beam momentum of 3.92 GeV/c. From the analysis of about 38 000 elastic events we give the differential cross-section for −t>0.06 (GeV)2. The known structures at −t ≈ 0.8 and 2.8 (GeV)2 are seen. An additional possible structure is present in the backward hemisphere.

2 data tables match query

No description provided.

No description provided.


ELASTIC D D SCATTERING UNDER SMALL ANGLES AT THE MOMENTUM OF 4.6-GEV/C.

Devenski, P.A. ; Zayachki, V.J. ; Kanazirski, Kh.M. ; et al.
Yad.Fiz. 34 (1981) 1302-1305, 1981.
Inspire Record 171881 DOI 10.17182/hepdata.17787

The experimental results on the differential cross sections of the elastic d-d scattering at deutron momentum of 4.6 GeV/c in the range of 4=momentum transferred squared 0.0275<=|t|<=0.146 (GeV/c)2 are presented. The data are analysed using the Bethe differential formula and are compared with the calculations by Glauber's model. A good accord is stated

1 data table match query

X ERROR D(T)/(T) = 2.0000 PCT.


SMALL ANGLE ELASTIC HE D SCATTERING AT 9.0-GEV/C AND 19.8-GEV/C. (IN RUSSIAN)

Avdeichikov, V.V. ; Beznogikh, G.G. ; Budilov, V.A. ; et al.
Yad.Fiz. 30 (1979) 610-617, 1979.
Inspire Record 147556 DOI 10.17182/hepdata.18168

None

2 data tables match query

X ERROR D(-T)/(-T) = 2.0000 PCT.

X ERROR D(-T)/(-T) = 2.0000 PCT.


P p and p d elastic scattering at 50 and 70 gev

Devenski, P.A. ; Zayachki, V.I. ; Zlatanov, Z.M. ; et al.
Yad.Fiz. 14 (1971) 367-370, 1971.
Inspire Record 69427 DOI 10.17182/hepdata.19274

None

2 data tables match query

No description provided.

No description provided.


Coherent Proton Diffraction Dissociation on Helium From 46-{GeV} to 400-{GeV}

Bujak, A. ; Devenski, P. ; Jenkins, E. ; et al.
Phys.Rev.D 23 (1981) 1911, 1981.
Inspire Record 165922 DOI 10.17182/hepdata.9994

Inclusive coherent proton diffraction dissociation on helium has been measured in the four-momentum transfer and missing-mass region 0.04<|t|<0.40 (GeV/c)2, MX2<10 GeV2 and for incident proton beam momenta from 46 to 400 GeV/c. We find that the differential cross section d2σdtdMX2 varies slowly with energy, reveals a pronounced peak at MX2≃2 GeV2, and at large masses behaves approximately as 1MX2. The cross section falls exponentially as |t| increases, with a large slope parameter at small momentum transfers and a substantially smaller one at large |t| values, with no clear dip between the two regions as seen in elastic scattering. We compare the experimental t distributions to Glauber-model predictions and find the data provide a sensitive test of the assumptions on the details of the elementary proton diffraction-dissociation amplitudes and on the total cross sections of the diffractively produced states.

5 data tables match query

No description provided.

No description provided.

AVERAGED DATA FOR 200 AND 259 GEV.

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PROTON - HELIUM ELASTIC SCATTERING FROM 45-GeV TO 400-GeV

Bujak, A. ; Devenski, P. ; Jenkins, E. ; et al.
JINR-E1-81-289, 1981.
Inspire Record 167719 DOI 10.17182/hepdata.39553

None

12 data tables match query

AVERAGED DATA FOR 44.9 AND 45.5 GEV.

No description provided.

No description provided.

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Elastic He p Scattering Under Small Angles in the Energy Interval 1.75-GeV/Nucleon-4.13-GeV/Nucleon.

The DUBNA-WARSAW-LENINGRAD collaboration Beznogikh, G.G ; Budilov, V.A. ; Devenski, P. ; et al.
Yad.Fiz. 27 (1978) 710-715, 1978.
Inspire Record 134520 DOI 10.17182/hepdata.18191

None

3 data tables match query

X ERROR D(-T)/(-T) = 2.0000 PCT.

X ERROR D(-T)/(-T) = 2.0000 PCT.

X ERROR D(-T)/(-T) = 2.0000 PCT.


Spin observables in neutron proton elastic scattering.

Ahmidouch, A. ; Arnold, J. ; van den Brandt, B. ; et al.
Eur.Phys.J.C 2 (1998) 627-641, 1998.
Inspire Record 471273 DOI 10.17182/hepdata.11376

The analyzing power,$A_{oono}$, and the polarization transfer observables$K_{onno}$,$K_{os''so}$

20 data tables match query

Position 'A' (see text for explanation).

Position 'A' (see text for explanation).

Position 'A' (see text for explanation).

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QCD analyses and determinations of alpha(s) in e+ e- annihilation at energies between 35-GeV and 189-GeV.

The JADE & OPAL collaborations Pfeifenschneider, P. ; Biebel, O. ; Movilla Fernandez, P.A. ; et al.
Eur.Phys.J.C 17 (2000) 19-51, 2000.
Inspire Record 513337 DOI 10.17182/hepdata.12882

We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e+e- annihilations at c.m.s. energies ranging from 35 GeV through 189 GeV. The study is based on jet-multiplicity related observables. The observables are obtained to high jet resolution scales with the JADE, Durham, Cambridge and cone jet finders, and compared with the predictions of various QCD and Monte Carlo models. The strong coupling strength, alpha_s, is determined at each energy by fits of O(alpha_s^2) calculations, as well as matched O(alpha_s^2) and NLLA predictions, to the data. Matching schemes are compared, and the dependence of the results on the choice of the renormalization scale is investigated. The combination of the results using matched predictions gives alpha_s(MZ)=0.1187+{0.0034}-{0.0019}. The strong coupling is also obtained, at lower precision, from O(alpha_s^2) fits of the c.m.s. energy evolution of some of the observables. A qualitative comparison is made between the data and a recent MLLA prediction for mean jet multiplicities.

80 data tables match query

Overall result for ALPHAS at the Z0 mass from the combination of the ln R-matching results from the observables evolved using a three-loop running expression. The errors shown are total errors and contain all the statistics and systematics.

Weighted mean for ALPHAS at the Z0 mass determined from the energy evolutions of the mean values of the 2-jet cross sections obtained with the JADE and DURHAMschemes and the 3-jet fraction for the JADE, DURHAM and CAMBRIDGE schemes evaluted at a fixed YCUT.. The errors shown are total errors and contain all the statistics and systematics.

Combined results for ALPHA_S from fits of matched predicitions. The first systematic (DSYS) error is the experimental systematic, the second DSYS error isthe hadronization systematic and the third is the QCD scale error. The values of ALPHAS evolved to the Z0 mass using a three-loop evolution are also given.

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Polarization observables in double neutral pion photoproduction

The CBELSA/TAPS collaboration Seifen, T. ; Hartmann, J. ; Afzal, F. ; et al.
2022.
Inspire Record 2106042 DOI 10.17182/hepdata.137817

Measurements of target asymmetries and double-polarization observables for the reaction $\gamma p\to p\pi^0\pi^0$ are reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility (Bonn University) using the Bonn frozen-spin butanol (C$_4$H$_9$OH) target, which provided transversely polarized protons. Linearly polarized photons were produced via bremsstrahlung off a diamond crystal. The data cover the photon energy range from $E_{\gamma}$=650 MeV to $E_{\gamma}$=2600 MeV and nearly the complete angular range. The results have been included in the BnGa partial wave analysis. Experimental results and the fit agree very well. Observed systematic differences in the branching ratios for decays of $N^*$ and $\Delta^*$ resonances are attributed to the internal structure of these excited nucleon states. Resonances which can be assigned to SU(6)$\times$O(3) two-oscillator configurations show larger branching ratios to intermediate states with non-zero intrinsic orbital angular momenta than resonances assigned to one-oscillator configurations.

24 data tables match query

Target asymmetry for $\pi^0\pi^0$ as a function of the polar angle for bins of the incident photon energy in the range of $E_\gamma$ = 650-2600 MeV.

Target asymmetry for $\pi^0\pi^0$ as a function of the $\pi^0\pi^0$ invariant mass for bins of the incident photon energy in the range of $E_\gamma$ = 650-2600 MeV.

Target asymmetry for $\pi^0\pi^0$ as a function of the $\phi^*$ angle for bins of the incident photon energy in the range of $E_\gamma$ = 650-2600 MeV.

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