P P --> PI+ DEUT
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Energy dependence of the analyzing power for the p p ---> pi+ d reaction in the energy region 500-MeV - 800-MeV

Yoshida, H.Y. ; Shimizu, H. ; Ohnuma, H. ; et al.
Nucl.Phys.A 541 (1992) 443-452, 1992.
Inspire Record 320645 DOI 10.17182/hepdata.36702

The energy dependence of the analyzing power A y for the pp → π + d reaction was measured during polarized beam acceleration from 500 to 800 MeV, using an internal target inserted into the beam every acceleration cycle. The measurements were made with the pion laboratory angle fixed at 68° and with incident proton energy bins varying from 10 to 30 MeV in width. The statistical accuracy per bin is ΔA y ⋍ 0.06 .

1 data table
Table 1

Statistical errors onnly.


ANALYZING POWER FOR THE P (polarized) P ---> D PI+ REACTION AT 0.8-GEV AND EFFECTS OF DIBARYON ADMIXTURES

Seth, K.k. ; Saha, A. ; Kielczewska, D. ; et al.
Phys.Lett.B 126 (1983) 164-168, 1983.
Inspire Record 194165 DOI 10.17182/hepdata.30706

A precision measurement of the angular distribution of the analyzing power of the reaction p + p → d + π + has been made at 0.8 GeV. It is shown that none of the existing theoretical calculations, including those which introduce resonant dibaryon amplitudes, reproduce even the qualitative features of the data. It is concluded that our data do not require dibaryon admixtures of the kind proposed for the interpretation of recent data on vector analyzing power, i T 11 (θ), of π− d elastic scattering at the same center of mass energy.

5 data tables
Table 1

LOWER ENERGY DATA NOT IN PUBLICATION.

Table 2

LOWER ENERGY DATA NOT IN PUBLICATION.

Table 3

LOWER ENERGY DATA NOT IN PUBLICATION.

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Energy Dependence of the $P P \to \pi^+ D$ Differential Cross-section Between 500-{MeV} and 600-{MeV}

Hoftiezer, J. ; Weddigen, C. ; Favier, B. ; et al.
Phys.Lett.B 100 (1981) 462-465, 1981.
Inspire Record 170182 DOI 10.17182/hepdata.31203

The unpolarized differential cross section for the reaction pp→π + d has been measured at SIN at seven energies between 514 and 583 MeV. Data are presented in terms of a Legendre polynomial expansion. An observed strong energy dependence of the 4th order coefficient can be understood as a threshold phenomenon in a phenomenological NΔ resonant description. No evidence was found for a 1 D 2 dibaryon resonance near 600 MeV.

2 data tables
Table 1

LEGENDRE POLYNOMIAL EXPANSION COEFFICIENTS DEFINED BY 4*PI*D(SIG)/DOMEGA = LEG(L=0)*P0 + LEG(L=2)*P2 + LEG(L=4)*P4. THUS, LEG(L=0) IS INTEGRATED CROSS SECTION SIG.

Table 2

COEFFICIENTS OF COS(THETA)**2 EXPANSION OF 32*PI*D(SIG)/DOMEGA.