A secondary peak at t = −1 (GeV/c)2 in high energy π-p charge exchange scattering

Sonderegger, P. ; Kirz, J. ; Guisan, O. ; et al.
Phys.Lett. 20 (1966) 75-78, 1966.
Inspire Record 1498686 DOI 10.17182/hepdata.75504
23 data tables

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Polarisation of recoil neutrons from single-pion production off protons in the resonance region

Hahn, U. ; Wallraff, W. ; Weingarten, W. ;
Conference Paper, 2016.
Inspire Record 1501541 DOI 10.17182/hepdata.76249
1 data table

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


Measurement of the differential cross section of the reaction $\pi^+ d \rightarrow p p$ at medium energy

Andreev, V.A. ; Borkowski,M.Ya. ; Gaditsky, V.G. ; et al.
2017.
Inspire Record 1509422 DOI 10.17182/hepdata.76719
1 data table

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Form factor ...

Barkov, L.M. ; Blinov, G.A. ; Vasserman, I.B. ; et al.
1982.
Inspire Record 1501544 DOI 10.17182/hepdata.76464
1 data table

Axis error includes +- 7/7 contribution (/LUMINOCITY, RADIATIVE CORRECTIONS, NUCLEAR ABSORPTION AND DECAY IN FLIGHT).


Measurement of K mesons in collisions of relativistic carbon nuclei with led and copper nuclei

Gavrilov, O.K. ;
1984.
Inspire Record 1501546 DOI 10.17182/hepdata.76485
4 data tables

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Amalgamation of Meson - Nucleon Scattering Data

Kelly, R.L. ; Cutkosky, R.E. ;
Phys.Rev. D20 (1979) 2782, 1979.
Inspire Record 140207 DOI 10.17182/hepdata.76310

We present a series of numerical and statistical techniques for interpolating and combining ("amalgamating") data from meson-nucleon scattering experiments. These techniques have been extensively applied to πp elastic and charge-exchange differential-cross-section and polarization data in the resonance region. The amalgamation is done by fitting a momentum- and angle-dependent interpolating surface to the data over a moderately narrow momentum range, typically ∼150 MeV/c, using the interpolating surface to shift data in a narrower central momentum region into fixed angular bins at a predetermined central momentum, and then statistically combining the data in each bin. The fitting procedure takes into account normalization errors, momentum calibration errors, momentum resolution, electromagnetic corrections, threshold structure, and inconsistencies among the data. The full covariance matrix of the amalgamated data is calculated, including contributions of statistical error, systematic error, and interpolation error. Techniques are presented for extracting from the covariance matrix information on the collective statistical fluctuations which correlate the errors of the amalgamated data. These fluctuations are described in terms of "correlation vectors" which facilitate the use of the amalgamated data as input for resonance-region phenomenology.

76 data tables

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Polarization measurements in $π^−$p charge exchange scattering from 618 MeV/c to 2267 MeV/c

Brown, Robert M. ; Clark, A.G. ; Davies, J.K. ; et al.
AIP Conf.Proc. 35 (1976) 189-197, 1976.
Inspire Record 117337 DOI 10.17182/hepdata.76257

Results are presented of measurements of the polarisation parameter for the reaction π−p→π°n : π°→γγ at 22 incident momenta in the resonance region. These results are generally in agreement with those of previous measurements and in qualitative agreement with predictions of phase shift analyses.

22 data tables

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Elastic scattering of 7.2-BeV negative pions on protons

Ainutdinov, M.S. ; Zombkovskii, S.M. ; Nikitin, S.Ya. ; et al.
Sov.Phys.JETP 15 (1962) 1038-1040, 1962.
Inspire Record 1501539 DOI 10.17182/hepdata.76439
1 data table

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Measurements of the Polarization Parameter p, and the Differential Cross-Section, for pi- p --> pi0 n in the Resonance Region

Brown, Robert M. ; Clark, A.G. ; Davies, J.K. ; et al.
Conference Paper, 1976.
Inspire Record 116148 DOI 10.17182/hepdata.76441
22 data tables

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$\pi^+ p$ elastic scattering

Hughes, C.M. ;
PhD Thesis, Bristol U., 1972.
Inspire Record 1501542 DOI 10.17182/hepdata.76466
18 data tables

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On the construction of pion photoproduction amplitudes from experimental data

Alvarez-Estrada, R.F. ; Sanchez-Gomez, J.L. ;
Nucl.Phys. B26 (1971) 433-444, 1971.
Inspire Record 68784 DOI 10.17182/hepdata.76722

New formulae for constructing the pion photoproduction amplitude J from experimental data are presented. The phase of J is expressed in terms of its zeroes in the energy plane, the particle poles and a dispersion integral over the modulus of J , the latter being given, except for a finite unphysical interval, in terms of differential cross sections and recoil nucleon polarizations. For γ p→ π + n at t ≈−0.870 μ 2 , where the unphysical-region contribution vanishes, the zeroes are found approximately, so that the phase of J can be uniquely determined from the experimental data.

3 data tables

A TABULATION OF PION - NUCLEON FORWARD AMPLITUDES UP TO 30-GeV/c

Carter, A.A. ; Carter, J.R. ;
2006.
Inspire Record 44589 DOI 10.17182/hepdata.75551
139 data tables

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Real Parts of the Pion-Proton Forward Scattering Amplitude

Engelmann, T.R. ; Hendrick, R.E. ;
Phys.Rev. D16 (1977) 2891, 1977.
Inspire Record 119142 DOI 10.17182/hepdata.75552

The most recent total-cross-section data are used to calculate real parts of the forward elastic π±p scattering amplitudes from threshold to 240 GeV/c. Using statistical and systematic uncertainties of the total cross sections and their momenta, along with uncertainties of the subtraction and coupling constants, unphysical cuts, and cross-section extrapolations, we calculate the uncertainties of the real amplitudes. Our results are compared to experimental and other theoretical determinations of the π±p forward real amplitudes.

240 data tables

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