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Differential cross sections for π + p and π − p elastic scattering have been measured with an accuracy of typically ±2% at 10 and 9 energies respectively in the range 88 to 292 MeV of lab kinetic energy.

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Double Spin Asymmetries A_NN and A_SS at sqrt{s}=200 GeV in Polarized Proton-Proton Elastic Scattering at RHIC

The pp2pp collaboration Bultmann, S. ; Chiang, I.H. ; Chrien, R.E. ; et al.

Phys.Lett.B 647 (2007) 98-103, 2007.

Inspire Record 729168 DOI 10.17182/hepdata.31499

We present the first measurements of the double spin asymmetries A_NN and A_SS at sqrt{s}=200 GeV, obtained by the pp2pp experiment using polarized proton beams at the Relativistic Heavy Ion Collider (RHIC). The data were collected in the four momentum transfer t range 0.01<|t|<0.03 (GeV/c)^2. The measured asymmetries, which are consistent with zero, allow us to estimate upper limits on the double helicity-flip amplitudes phi_2 and phi_4 at small t as well as on the difference Delta(sigma_T) between the total cross sections for transversely polarized protons with antiparallel or parallel spin orientations.

3 data tables match query

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Double spin asymmetries.

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Double spin asymmetries.

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T dependence of the double spin asymmetry ASS3 with statistical errors only.

First measurement of A(N) at s**(1/2) = 200-GeV in polarized proton proton elastic scattering at RHIC.

Bultmann, S. ; Chiang, I.H. ; Chrien, R.E. ; et al.

Phys.Lett.B 632 (2006) 167-172, 2006.

Inspire Record 688172 DOI 10.17182/hepdata.31570

We report on the first measurement of the single spin analyzing power (A_N) at sqrt(s)=200GeV, obtained by the pp2pp experiment using polarized proton beams at the Relativistic Heavy Ion Collider (RHIC). Data points were measured in the four momentum transfer t range 0.01 < |t| < 0.03 (GeV/c)^2. Our result, averaged over the whole t-interval is about one standard deviation above the calculation, which uses interference between electromagnetic spin-flip amplitude and hadronic non-flip amplitude, the source of A_N. The difference could be explained by an additional contribution of a hadronic spin-flip amplitude to A_N.

1 data table match query

Table 1

The single spin analyzing power for 3 T intervals.

MEASUREMENT OF POLARIZATION PARAMETER P IN ELASTIC PI- P SCATTERING FOR ENERGIES OF 490-MeV AND 600-MeV. (IN RUSSIAN)

Bekrenev, V.S. ; Gaditsky, V.G. ; Kovalev, A.I. ; et al.

Pisma Zh.Eksp.Teor.Fiz. 31 (1980) 197-201, 1980.

Inspire Record 157168 DOI 10.17182/hepdata.16995

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EXPERIMENTAL DATA ON ELASTIC p p, n p, p d AND p gamma FORWARD SCATTERING AT INTERMEDIATE-ENERGIES

Measurement of the Ratio of the Real Part to Imaginary Part of $p p$ and $p d$ Forward Scattering Amplitudes From 50-{GeV} to 400-{GeV}

Elastic $p p$ Scattering in the Coulomb Nuclear Interference Region in (500-{MeV} to 1000-{MeV}) Range

STUDY OF THE LEADING PROTON SPECTRA IN EXPERIMENTS ON 6.8-GEV/C PROTON SCATTERING ON PROTONS AND C, AL, CU, SN, PB NUCLEI. (IN RUSSIAN)

MEASUREMENT OF P P ELASTIC SCATTERING DIFFRACTION SLOPE PARAMETER IN REGION OF 650-MEV - 1000-MEV. (IN RUSSIAN)

QUADRUPOLE EFFECT IN ELASTIC PROTON SCATTERING WITH 1-GEV ENERGY ON THE NUCLEI OF THE P SHELL. (IN RUSSIAN)

Pi p elastic scattering from 88 to 292 mev

Double Spin Asymmetries A_NN and A_SS at sqrt{s}=200 GeV in Polarized Proton-Proton Elastic Scattering at RHIC

First measurement of A(N) at s**(1/2) = 200-GeV in polarized proton proton elastic scattering at RHIC.

MEASUREMENT OF POLARIZATION PARAMETER P IN ELASTIC PI- P SCATTERING FOR ENERGIES OF 490-MeV AND 600-MeV. (IN RUSSIAN)