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Analysis of<i>pp</i>-<i>pp</i>, π<i>d</i>-π<i>d</i>, and<i>pp</i>-π<i>d</i>processes concerning a narrow structure in<i>pp</i>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">A</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="italic">y</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>data at √<i>s</i>∼2.16 GeV
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Description
A method is proposed for the analysis of pp-pp, \ensuremath{\pi}d-\ensuremath{\pi}d, and pp-\ensuremath{\pi}d processes concerning a narrow structure of KEK pp-${\mathit{A}}_{\mathit{y}}$ data (${\mathrm{\ensuremath{\theta}}}_{\mathit{c}}$\ensuremath{\approxeq}39\ifmmode^\circ\else\textdegree\fi{}) at \ensuremath{\surd}s \ensuremath{\simeq}2.16 GeV. The analysis of these ${\mathit{A}}_{\mathit{y}}$ data, together with the Saclay pp d\ensuremath{\sigma}/d\ensuremath{\Omega}(${\mathrm{\ensuremath{\theta}}}_{\mathit{c}}$=90\ifmmode^\circ\else\textdegree\fi{}) data, indicates that the narrow structure can be explained by the structure of the $^{3}$${\mathit{P}}_{2}$, $^{3}$${\mathit{F}}_{3}$, or $^{3}$${\mathit{H}}_{5}$ wave, while the structure in the $^{3}$${\mathit{F}}_{3}$ or $^{3}$${\mathit{H}}_{5}$ wave is more favorable than that in the $^{3}$${\mathit{P}}_{2}$ wave. Furthermore, the analyses are extended to the other data on pp-pp, \ensuremath{\pi}d-\ensuremath{\pi}d, and pp-\ensuremath{\pi}d processes to restrict the solutions. Then the efficient observables for this purpose are proposed.
Journal
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- Physical Review C
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Physical Review C 45 1432-1443, 1992-04-01
American Physical Society (APS)
