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

Statistical errors onnly.


Measurement of the Spin Correlation Parameters A(ll) and A(sl) for the Reaction $P P \to D \pi^+$ in the Energy Region 500-{MeV} - 800-{MeV}

Barlow, D.B. ; Saha, A. ; Seth, K.K. ; et al.
Phys.Rev.C 37 (1988) 1977-1986, 1988.
Inspire Record 242361 DOI 10.17182/hepdata.26282

Angular distributions of the spin-correlation parameters Asl and All for the reaction pp→π+d have been measured at pion center-of-mass angles 40°≤θπ+*≤130° at incident energies of 500, 650, and 800 MeV. Additional measurements of All were made at 600, 700, and 750 MeV. The results of the experiment are compared with the predictions of several unified coupled-channel calculations and partial-wave analyses. While the latest partial-wave analyses were found to fit the data reasonably well, all except one of the various model predictions not only do not fit the data well, but also tend to be in disagreement with each other. The data show no clear sign of a need for proposed dibaryon resonances.

9 data tables

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ANALYZING POWER IN THE REACTION P P ---> D PI+ FOR BEAM MOMENTA FROM 1.17-GEV/C TO 1.96-GEV/C

Corcoran, M.d. ; Calkin, M.m. ; Hoftiezer, J.h. ; et al.
Phys.Lett.B 120 (1983) 309-313, 1983.
Inspire Record 190882 DOI 10.17182/hepdata.30825

The analyzing power A y 0 in the reaction p↑p→dπ + has been measured using the polarized proton beam at Argonne National Laboratory's zero gradient synchrotron. Data were taken at beam momenta of 1.17, 1.47, 1.70, and 1.96 GeV/ c and for pion center of mass angles from 8° to 163°.

1 data table

No description provided.